dt-admin-pc-v2/public/earthsdk/XbsjEarth/thirdParty/navigator/standalone/viewerCesiumNavigationMixin.js

/**
 * Cesium Navigation - https://github.com/alberto-acevedo/cesium-navigation
 *
 * The plugin is 100% based on open source libraries. The same license that applies to Cesiumjs and terriajs applies also to this plugin. Feel free to use it,  modify it, and improve it.
 */
(function (root, factory) {
    'use strict';
    /*jshint sub:true*/
    
    if (typeof define === 'function' && define.amd) {
        define([], factory);
    }
    
    Cesium['viewerCesiumNavigationMixin'] = factory();
}(typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : this, function () {

// <-- actual code


/**
 * @license almond 0.3.3 Copyright jQuery Foundation and other contributors.
 * Released under MIT license, http://github.com/requirejs/almond/LICENSE
 */
//Going sloppy to avoid 'use strict' string cost, but strict practices should
//be followed.
/*global setTimeout: false */

var requirejs, require, define;
(function (undef) {
    var main, req, makeMap, handlers,
        defined = {},
        waiting = {},
        config = {},
        defining = {},
        hasOwn = Object.prototype.hasOwnProperty,
        aps = [].slice,
        jsSuffixRegExp = /\.js$/;

    function hasProp(obj, prop) {
        return hasOwn.call(obj, prop);
    }

    /**
     * Given a relative module name, like ./something, normalize it to
     * a real name that can be mapped to a path.
     * @param {String} name the relative name
     * @param {String} baseName a real name that the name arg is relative
     * to.
     * @returns {String} normalized name
     */
    function normalize(name, baseName) {
        var nameParts, nameSegment, mapValue, foundMap, lastIndex,
            foundI, foundStarMap, starI, i, j, part, normalizedBaseParts,
            baseParts = baseName && baseName.split("/"),
            map = config.map,
            starMap = (map && map['*']) || {};

        //Adjust any relative paths.
        if (name) {
            name = name.split('/');
            lastIndex = name.length - 1;

            // If wanting node ID compatibility, strip .js from end
            // of IDs. Have to do this here, and not in nameToUrl
            // because node allows either .js or non .js to map
            // to same file.
            if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {
                name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');
            }

            // Starts with a '.' so need the baseName
            if (name[0].charAt(0) === '.' && baseParts) {
                //Convert baseName to array, and lop off the last part,
                //so that . matches that 'directory' and not name of the baseName's
                //module. For instance, baseName of 'one/two/three', maps to
                //'one/two/three.js', but we want the directory, 'one/two' for
                //this normalization.
                normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
                name = normalizedBaseParts.concat(name);
            }

            //start trimDots
            for (i = 0; i < name.length; i++) {
                part = name[i];
                if (part === '.') {
                    name.splice(i, 1);
                    i -= 1;
                } else if (part === '..') {
                    // If at the start, or previous value is still ..,
                    // keep them so that when converted to a path it may
                    // still work when converted to a path, even though
                    // as an ID it is less than ideal. In larger point
                    // releases, may be better to just kick out an error.
                    if (i === 0 || (i === 1 && name[2] === '..') || name[i - 1] === '..') {
                        continue;
                    } else if (i > 0) {
                        name.splice(i - 1, 2);
                        i -= 2;
                    }
                }
            }
            //end trimDots

            name = name.join('/');
        }

        //Apply map config if available.
        if ((baseParts || starMap) && map) {
            nameParts = name.split('/');

            for (i = nameParts.length; i > 0; i -= 1) {
                nameSegment = nameParts.slice(0, i).join("/");

                if (baseParts) {
                    //Find the longest baseName segment match in the config.
                    //So, do joins on the biggest to smallest lengths of baseParts.
                    for (j = baseParts.length; j > 0; j -= 1) {
                        mapValue = map[baseParts.slice(0, j).join('/')];

                        //baseName segment has  config, find if it has one for
                        //this name.
                        if (mapValue) {
                            mapValue = mapValue[nameSegment];
                            if (mapValue) {
                                //Match, update name to the new value.
                                foundMap = mapValue;
                                foundI = i;
                                break;
                            }
                        }
                    }
                }

                if (foundMap) {
                    break;
                }

                //Check for a star map match, but just hold on to it,
                //if there is a shorter segment match later in a matching
                //config, then favor over this star map.
                if (!foundStarMap && starMap && starMap[nameSegment]) {
                    foundStarMap = starMap[nameSegment];
                    starI = i;
                }
            }

            if (!foundMap && foundStarMap) {
                foundMap = foundStarMap;
                foundI = starI;
            }

            if (foundMap) {
                nameParts.splice(0, foundI, foundMap);
                name = nameParts.join('/');
            }
        }

        return name;
    }

    function makeRequire(relName, forceSync) {
        return function () {
            //A version of a require function that passes a moduleName
            //value for items that may need to
            //look up paths relative to the moduleName
            var args = aps.call(arguments, 0);

            //If first arg is not require('string'), and there is only
            //one arg, it is the array form without a callback. Insert
            //a null so that the following concat is correct.
            if (typeof args[0] !== 'string' && args.length === 1) {
                args.push(null);
            }
            return req.apply(undef, args.concat([relName, forceSync]));
        };
    }

    function makeNormalize(relName) {
        return function (name) {
            return normalize(name, relName);
        };
    }

    function makeLoad(depName) {
        return function (value) {
            defined[depName] = value;
        };
    }

    function callDep(name) {
        if (hasProp(waiting, name)) {
            var args = waiting[name];
            delete waiting[name];
            defining[name] = true;
            main.apply(undef, args);
        }

        if (!hasProp(defined, name) && !hasProp(defining, name)) {
            throw new Error('No ' + name);
        }
        return defined[name];
    }

    //Turns a plugin!resource to [plugin, resource]
    //with the plugin being undefined if the name
    //did not have a plugin prefix.
    function splitPrefix(name) {
        var prefix,
            index = name ? name.indexOf('!') : -1;
        if (index > -1) {
            prefix = name.substring(0, index);
            name = name.substring(index + 1, name.length);
        }
        return [prefix, name];
    }

    //Creates a parts array for a relName where first part is plugin ID,
    //second part is resource ID. Assumes relName has already been normalized.
    function makeRelParts(relName) {
        return relName ? splitPrefix(relName) : [];
    }

    /**
     * Makes a name map, normalizing the name, and using a plugin
     * for normalization if necessary. Grabs a ref to plugin
     * too, as an optimization.
     */
    makeMap = function (name, relParts) {
        var plugin,
            parts = splitPrefix(name),
            prefix = parts[0],
            relResourceName = relParts[1];

        name = parts[1];

        if (prefix) {
            prefix = normalize(prefix, relResourceName);
            plugin = callDep(prefix);
        }

        //Normalize according
        if (prefix) {
            if (plugin && plugin.normalize) {
                name = plugin.normalize(name, makeNormalize(relResourceName));
            } else {
                name = normalize(name, relResourceName);
            }
        } else {
            name = normalize(name, relResourceName);
            parts = splitPrefix(name);
            prefix = parts[0];
            name = parts[1];
            if (prefix) {
                plugin = callDep(prefix);
            }
        }

        //Using ridiculous property names for space reasons
        return {
            f: prefix ? prefix + '!' + name : name, //fullName
            n: name,
            pr: prefix,
            p: plugin
        };
    };

    function makeConfig(name) {
        return function () {
            return (config && config.config && config.config[name]) || {};
        };
    }

    handlers = {
        require: function (name) {
            return makeRequire(name);
        },
        exports: function (name) {
            var e = defined[name];
            if (typeof e !== 'undefined') {
                return e;
            } else {
                return (defined[name] = {});
            }
        },
        module: function (name) {
            return {
                id: name,
                uri: '',
                exports: defined[name],
                config: makeConfig(name)
            };
        }
    };

    main = function (name, deps, callback, relName) {
        var cjsModule, depName, ret, map, i, relParts,
            args = [],
            callbackType = typeof callback,
            usingExports;

        //Use name if no relName
        relName = relName || name;
        relParts = makeRelParts(relName);

        //Call the callback to define the module, if necessary.
        if (callbackType === 'undefined' || callbackType === 'function') {
            //Pull out the defined dependencies and pass the ordered
            //values to the callback.
            //Default to [require, exports, module] if no deps
            deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps;
            for (i = 0; i < deps.length; i += 1) {
                map = makeMap(deps[i], relParts);
                depName = map.f;

                //Fast path CommonJS standard dependencies.
                if (depName === "require") {
                    args[i] = handlers.require(name);
                } else if (depName === "exports") {
                    //CommonJS module spec 1.1
                    args[i] = handlers.exports(name);
                    usingExports = true;
                } else if (depName === "module") {
                    //CommonJS module spec 1.1
                    cjsModule = args[i] = handlers.module(name);
                } else if (hasProp(defined, depName) ||
                           hasProp(waiting, depName) ||
                           hasProp(defining, depName)) {
                    args[i] = callDep(depName);
                } else if (map.p) {
                    map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {});
                    args[i] = defined[depName];
                } else {
                    throw new Error(name + ' missing ' + depName);
                }
            }

            ret = callback ? callback.apply(defined[name], args) : undefined;

            if (name) {
                //If setting exports via "module" is in play,
                //favor that over return value and exports. After that,
                //favor a non-undefined return value over exports use.
                if (cjsModule && cjsModule.exports !== undef &&
                        cjsModule.exports !== defined[name]) {
                    defined[name] = cjsModule.exports;
                } else if (ret !== undef || !usingExports) {
                    //Use the return value from the function.
                    defined[name] = ret;
                }
            }
        } else if (name) {
            //May just be an object definition for the module. Only
            //worry about defining if have a module name.
            defined[name] = callback;
        }
    };

    requirejs = require = req = function (deps, callback, relName, forceSync, alt) {
        if (typeof deps === "string") {
            if (handlers[deps]) {
                //callback in this case is really relName
                return handlers[deps](callback);
            }
            //Just return the module wanted. In this scenario, the
            //deps arg is the module name, and second arg (if passed)
            //is just the relName.
            //Normalize module name, if it contains . or ..
            return callDep(makeMap(deps, makeRelParts(callback)).f);
        } else if (!deps.splice) {
            //deps is a config object, not an array.
            config = deps;
            if (config.deps) {
                req(config.deps, config.callback);
            }
            if (!callback) {
                return;
            }

            if (callback.splice) {
                //callback is an array, which means it is a dependency list.
                //Adjust args if there are dependencies
                deps = callback;
                callback = relName;
                relName = null;
            } else {
                deps = undef;
            }
        }

        //Support require(['a'])
        callback = callback || function () {};

        //If relName is a function, it is an errback handler,
        //so remove it.
        if (typeof relName === 'function') {
            relName = forceSync;
            forceSync = alt;
        }

        //Simulate async callback;
        if (forceSync) {
            main(undef, deps, callback, relName);
        } else {
            //Using a non-zero value because of concern for what old browsers
            //do, and latest browsers "upgrade" to 4 if lower value is used:
            //http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout:
            //If want a value immediately, use require('id') instead -- something
            //that works in almond on the global level, but not guaranteed and
            //unlikely to work in other AMD implementations.
            setTimeout(function () {
                main(undef, deps, callback, relName);
            }, 4);
        }

        return req;
    };

    /**
     * Just drops the config on the floor, but returns req in case
     * the config return value is used.
     */
    req.config = function (cfg) {
        return req(cfg);
    };

    /**
     * Expose module registry for debugging and tooling
     */
    requirejs._defined = defined;

    define = function (name, deps, callback) {
        if (typeof name !== 'string') {
            throw new Error('See almond README: incorrect module build, no module name');
        }

        //This module may not have dependencies
        if (!deps.splice) {
            //deps is not an array, so probably means
            //an object literal or factory function for
            //the value. Adjust args.
            callback = deps;
            deps = [];
        }

        if (!hasProp(defined, name) && !hasProp(waiting, name)) {
            waiting[name] = [name, deps, callback];
        }
    };

    define.amd = {
        jQuery: true
    };
}());

define("almond", function(){});

/*!
 * Knockout JavaScript library v3.4.2
 * (c) The Knockout.js team - http://knockoutjs.com/
 * License: MIT (http://www.opensource.org/licenses/mit-license.php)
 */

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/*! WeakMap shim
 * (The MIT License)
 *
 * Copyright (c) 2012 Brandon Benvie <http://bbenvie.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 * associated documentation files (the 'Software'), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included with all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
// Original WeakMap implementation by Gozala @ https://gist.github.com/1269991
// Updated and bugfixed by Raynos @ https://gist.github.com/1638059
// Expanded by Benvie @ https://github.com/Benvie/harmony-collections
// This is the version used by knockout-es5. Modified by Steve Sanderson as follows:
// [1] Deleted weakmap.min.js (it's not useful as it would be out of sync with weakmap.js now I'm editing it)
// [2] Since UglifyJS strips inline function names (and you can't disable that without disabling name mangling
//     entirely), insert code that re-adds function names
void function(a,b,c){function d(a,b,c){return"function"==typeof b&&(c=b,b=e(c).replace(/_$/,"")),j(a,b,{configurable:!0,writable:!0,value:c})}function e(a){return"function"!=typeof a?"":"_name"in a?a._name:"name"in a?a.name:k.call(a).match(n)[1]}function f(a,b){
// Undo the name-stripping that UglifyJS does
return b._name=a,b}function g(a){function b(b,e){return e||2===arguments.length?d.set(b,e):(e=d.get(b),e===c&&(e=a(b),d.set(b,e))),e}var d=new p;return a||(a=q),b}var h=Object.getOwnPropertyNames,i="object"==typeof window?Object.getOwnPropertyNames(window):[],j=Object.defineProperty,k=Function.prototype.toString,l=Object.create,m=Object.prototype.hasOwnProperty,n=/^\n?function\s?(\w*)?_?\(/,o=function(){function a(){var a=g(),c={};this.unlock=function(d){var e=n(d);if(m.call(e,a))return e[a](c);var f=l(null,b);return j(e,a,{value:function(a){if(a===c)return f}}),f}}var b={value:{writable:!0,value:c}},e=l(null),g=function(){var a=Math.random().toString(36).slice(2);return a in e?g():e[a]=a},k=g(),n=function(a){if(m.call(a,k))return a[k];if(!Object.isExtensible(a))throw new TypeError("Object must be extensible");var b=l(null);return j(a,k,{value:b}),b};
// common per-object storage area made visible by patching getOwnPropertyNames'
return d(Object,f("getOwnPropertyNames",function(a){
// gh-43
var b,c=Object(a);
// Fixes for debuggers:
// 1) Some objects lack .toString(), calling it on them make Chrome
// debugger fail when inspecting variables.
// 2) Window.prototype methods and properties are private in IE11 and
// throw 'Invalid calling object'.
if(c!==Window.prototype&&"toString"in c&&"[object Window]"===c.toString())try{b=h(a)}catch(a){b=i}else b=h(a);return m.call(a,k)&&b.splice(b.indexOf(k),1),b})),d(a.prototype,f("get",function(a){return this.unlock(a).value})),d(a.prototype,f("set",function(a,b){this.unlock(a).value=b})),a}(),p=function(g){function h(b){return this===a||null==this||this===h.prototype?new h(b):(p(this,new o),void r(this,b))}function i(a){n(a);var d=q(this).get(a);return d===b?c:d}function j(a,d){n(a),
// store a token for explicit undefined so that "has" works correctly
q(this).set(a,d===c?b:d)}function k(a){return n(a),q(this).get(a)!==c}function l(a){n(a);var b=q(this),d=b.get(a)!==c;return b.set(a,c),d}function m(){return q(this),"[object WeakMap]"}var n=function(a){if(null==a||"object"!=typeof a&&"function"!=typeof a)throw new TypeError("Invalid WeakMap key")},p=function(a,b){var c=g.unlock(a);if(c.value)throw new TypeError("Object is already a WeakMap");c.value=b},q=function(a){var b=g.unlock(a).value;if(!b)throw new TypeError("WeakMap is not generic");return b},r=function(a,b){null!==b&&"object"==typeof b&&"function"==typeof b.forEach&&b.forEach(function(c,d){c instanceof Array&&2===c.length&&j.call(a,b[d][0],b[d][1])})};
// Undo the function-name stripping that UglifyJS does
i._name="get",j._name="set",k._name="has",m._name="toString";var s=(""+Object).split("Object"),t=f("toString",function(){return s[0]+e(this)+s[1]});d(t,t);var u={__proto__:[]}instanceof Array?function(a){a.__proto__=t}:function(a){d(a,t)};return u(h),[m,i,j,k,l].forEach(function(a){d(h.prototype,a),u(a)}),h}(new o),q=Object.create?function(){return Object.create(null)}:function(){return{}};"undefined"!=typeof module?module.exports=p:"undefined"!=typeof exports?exports.WeakMap=p:"WeakMap"in a||(a.WeakMap=p),p.createStorage=g,a.WeakMap&&(a.WeakMap.createStorage=g)}(function(){return this}()),/*!
 * Knockout ES5 plugin - https://github.com/SteveSanderson/knockout-es5
 * Copyright (c) Steve Sanderson
 * MIT license
 */
function(a,b){"use strict";
// Model tracking
// --------------
//
// This is the central feature of Knockout-ES5. We augment model objects by converting properties
// into ES5 getter/setter pairs that read/write an underlying Knockout observable. This means you can
// use plain JavaScript syntax to read/write the property while still getting the full benefits of
// Knockout's automatic dependency detection and notification triggering.
//
// For comparison, here's Knockout ES3-compatible syntax:
//
//     var firstNameLength = myModel.user().firstName().length; // Read
//     myModel.user().firstName('Bert'); // Write
//
// ... versus Knockout-ES5 syntax:
//
//     var firstNameLength = myModel.user.firstName.length; // Read
//     myModel.user.firstName = 'Bert'; // Write
// `ko.track(model)` converts each property on the given model object into a getter/setter pair that
// wraps a Knockout observable. Optionally specify an array of property names to wrap; otherwise we
// wrap all properties. If any of the properties are already observables, we replace them with
// ES5 getter/setter pairs that wrap your original observable instances. In the case of readonly
// ko.computed properties, we simply do not define a setter (so attempted writes will be ignored,
// which is how ES5 readonly properties normally behave).
//
// By design, this does *not* recursively walk child object properties, because making literally
// everything everywhere independently observable is usually unhelpful. When you do want to track
// child object properties independently, define your own class for those child objects and put
// a separate ko.track call into its constructor --- this gives you far more control.
/**
   * @param {object} obj
   * @param {object|array.<string>} propertyNamesOrSettings
   * @param {boolean} propertyNamesOrSettings.deep Use deep track.
   * @param {array.<string>} propertyNamesOrSettings.fields Array of property names to wrap.
   * todo: @param {array.<string>} propertyNamesOrSettings.exclude Array of exclude property names to wrap.
   * todo: @param {function(string, *):boolean} propertyNamesOrSettings.filter Function to filter property 
   *   names to wrap. A function that takes ... params
   * @return {object}
   */
function c(a,b){if(!a||"object"!=typeof a)throw new Error("When calling ko.track, you must pass an object as the first parameter.");var c;
// defaults
return i(b)?(b.deep=b.deep||!1,b.fields=b.fields||Object.getOwnPropertyNames(a),b.lazy=b.lazy||!1,h(a,b.fields,b)):(c=b||Object.getOwnPropertyNames(a),h(a,c,{})),a}function d(a){return a.name?a.name:(a.toString().trim().match(A)||[])[1]}function e(a){return a&&"object"==typeof a&&"Object"===d(a.constructor)}function f(a,c,d){var e=w.isObservable(a),f=!e&&Array.isArray(a),g=e?a:f?w.observableArray(a):w.observable(a);
// add check in case the object is already an observable array
return d[c]=function(){return g},(f||e&&"push"in g)&&m(w,g),{configurable:!0,enumerable:!0,get:g,set:w.isWriteableObservable(g)?g:b}}function g(a,b,c){function d(a,b){return e?b?e(a):e:Array.isArray(a)?(e=w.observableArray(a),m(w,e),e):e=w.observable(a)}if(w.isObservable(a))
// no need to be lazy if we already have an observable
return f(a,b,c);var e;return c[b]=function(){return d(a)},{configurable:!0,enumerable:!0,get:function(){return d(a)()},set:function(a){d(a,!0)}}}function h(a,b,c){if(b.length){var d=j(a,!0),i={};b.forEach(function(b){
// Skip properties that are already tracked
if(!(b in d)&&Object.getOwnPropertyDescriptor(a,b).configurable!==!1)
// Skip properties where descriptor can't be redefined
{var j=a[b];i[b]=(c.lazy?g:f)(j,b,d),c.deep&&e(j)&&h(j,Object.keys(j),c)}}),Object.defineProperties(a,i)}}function i(a){return!!a&&"object"==typeof a&&a.constructor===Object}
// Gets or creates the hidden internal key-value collection of observables corresponding to
// properties on the model object.
function j(a,b){y||(y=x());var c=y.get(a);return!c&&b&&(c={},y.set(a,c)),c}
// Removes the internal references to observables mapped to the specified properties
// or the entire object reference if no properties are passed in. This allows the
// observables to be replaced and tracked again.
function k(a,b){if(y)if(1===arguments.length)y.delete(a);else{var c=j(a,!1);c&&b.forEach(function(a){delete c[a]})}}
// Computed properties
// -------------------
//
// The preceding code is already sufficient to upgrade ko.computed model properties to ES5
// getter/setter pairs (or in the case of readonly ko.computed properties, just a getter).
// These then behave like a regular property with a getter function, except they are smarter:
// your evaluator is only invoked when one of its dependencies changes. The result is cached
// and used for all evaluations until the next time a dependency changes).
//
// However, instead of forcing developers to declare a ko.computed property explicitly, it's
// nice to offer a utility function that declares a computed getter directly.
// Implements `ko.defineProperty`
function l(a,b,d){var e=this,f={owner:a,deferEvaluation:!0};if("function"==typeof d)f.read=d;else{if("value"in d)throw new Error('For ko.defineProperty, you must not specify a "value" for the property. You must provide a "get" function.');if("function"!=typeof d.get)throw new Error('For ko.defineProperty, the third parameter must be either an evaluator function, or an options object containing a function called "get".');f.read=d.get,f.write=d.set}return a[b]=e.computed(f),c.call(e,a,[b]),a}
// Array handling
// --------------
//
// Arrays are special, because unlike other property types, they have standard mutator functions
// (`push`/`pop`/`splice`/etc.) and it's desirable to trigger a change notification whenever one of
// those mutator functions is invoked.
//
// Traditionally, Knockout handles this by putting special versions of `push`/`pop`/etc. on observable
// arrays that mutate the underlying array and then trigger a notification. That approach doesn't
// work for Knockout-ES5 because properties now return the underlying arrays, so the mutator runs
// in the context of the underlying array, not any particular observable:
//
//     // Operates on the underlying array value
//     myModel.someCollection.push('New value');
//
// To solve this, Knockout-ES5 detects array values, and modifies them as follows:
//  1. Associates a hidden subscribable with each array instance that it encounters
//  2. Intercepts standard mutators (`push`/`pop`/etc.) and makes them trigger the subscribable
// Then, for model properties whose values are arrays, the property's underlying observable
// subscribes to the array subscribable, so it can trigger a change notification after mutation.
// Given an observable that underlies a model property, watch for any array value that might
// be assigned as the property value, and hook into its change events
function m(a,b){var c=null;a.computed(function(){
// Unsubscribe to any earlier array instance
c&&(c.dispose(),c=null);
// Subscribe to the new array instance
var d=b();d instanceof Array&&(c=n(a,b,d))})}
// Listens for array mutations, and when they happen, cause the observable to fire notifications.
// This is used to make model properties of type array fire notifications when the array changes.
// Returns a subscribable that can later be disposed.
function n(a,b,c){var d=o(a,c);return d.subscribe(b)}
// Gets or creates a subscribable that fires after each array mutation
function o(a,b){z||(z=x());var c=z.get(b);if(!c){c=new a.subscribable,z.set(b,c);var d={};p(b,c,d),q(a,b,c,d)}return c}
// After each array mutation, fires a notification on the given subscribable
function p(a,b,c){["pop","push","reverse","shift","sort","splice","unshift"].forEach(function(d){var e=a[d];a[d]=function(){var a=e.apply(this,arguments);return c.pause!==!0&&b.notifySubscribers(this),a}})}
// Adds Knockout's additional array mutation functions to the array
function q(a,b,c,d){["remove","removeAll","destroy","destroyAll","replace"].forEach(function(e){
// Make it a non-enumerable property for consistency with standard Array functions
Object.defineProperty(b,e,{enumerable:!1,value:function(){var f;
// These additional array mutators are built using the underlying push/pop/etc.
// mutators, which are wrapped to trigger notifications. But we don't want to
// trigger multiple notifications, so pause the push/pop/etc. wrappers and
// delivery only one notification at the end of the process.
d.pause=!0;try{
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// ------------------------
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define('Core/KnockoutMarkdownBinding',[
    'markdown-it-sanitizer',
    'markdown-it'
], function (
    MarkdownItSanitizer,
    MarkdownIt) {
    'use strict';

    var htmlTagRegex = /<html(.|\s)*>(.|\s)*<\/html>/im;

    var md = new MarkdownIt({
        html: true,
        linkify: true
    });

    md.use(MarkdownItSanitizer, {
        imageClass: '',
        removeUnbalanced: false,
        removeUnknown: false
    });

    var KnockoutMarkdownBinding = {
        register: function (Knockout) {
            Knockout.bindingHandlers.markdown = {
                'init': function () {
                    // Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications)
                    return { 'controlsDescendantBindings': true };
                },
                'update': function (element, valueAccessor) {
                    // Remove existing children of this element.
                    while (element.firstChild) {
                        Knockout.removeNode(element.firstChild);
                    }

                    var rawText = Knockout.unwrap(valueAccessor());

                    // If the text contains an <html> tag, don't try to interpret it as Markdown because
                    // we'll probably break it in the process.
                    var html;
                    if (htmlTagRegex.test(rawText)) {
                        html = rawText;
                    } else {
                        html = md.render(rawText);
                    }

                    var nodes = Knockout.utils.parseHtmlFragment(html, element);
                    element.className = element.className + ' markdown';

                    for (var i = 0; i < nodes.length; ++i) {
                        var node = nodes[i];
                        setAnchorTargets(node);
                        element.appendChild(node);
                    }
                }
            };
        }
    };

    function setAnchorTargets(element) {
        if (element instanceof HTMLAnchorElement) {
            element.target = '_blank';
        }

        if (element.childNodes && element.childNodes.length > 0) {
            for (var i = 0; i < element.childNodes.length; ++i) {
                setAnchorTargets(element.childNodes[i]);
            }
        }
    }

    return KnockoutMarkdownBinding;
});


/*! Hammer.JS - v2.0.7 - 2016-04-22
 * http://hammerjs.github.io/
 *
 * Copyright (c) 2016 Jorik Tangelder;
 * Licensed under the MIT license */
!function(a,b,c,d){"use strict";function e(a,b,c){return setTimeout(j(a,c),b)}function f(a,b,c){return Array.isArray(a)?(g(a,c[b],c),!0):!1}function g(a,b,c){var e;if(a)if(a.forEach)a.forEach(b,c);else if(a.length!==d)for(e=0;e<a.length;)b.call(c,a[e],e,a),e++;else for(e in a)a.hasOwnProperty(e)&&b.call(c,a[e],e,a)}function h(b,c,d){var e="DEPRECATED METHOD: "+c+"\n"+d+" AT \n";return function(){var c=new Error("get-stack-trace"),d=c&&c.stack?c.stack.replace(/^[^\(]+?[\n$]/gm,"").replace(/^\s+at\s+/gm,"").replace(/^Object.<anonymous>\s*\(/gm,"{anonymous}()@"):"Unknown Stack Trace",f=a.console&&(a.console.warn||a.console.log);return f&&f.call(a.console,e,d),b.apply(this,arguments)}}function i(a,b,c){var d,e=b.prototype;d=a.prototype=Object.create(e),d.constructor=a,d._super=e,c&&la(d,c)}function j(a,b){return function(){return a.apply(b,arguments)}}function k(a,b){return typeof a==oa?a.apply(b?b[0]||d:d,b):a}function l(a,b){return a===d?b:a}function m(a,b,c){g(q(b),function(b){a.addEventListener(b,c,!1)})}function n(a,b,c){g(q(b),function(b){a.removeEventListener(b,c,!1)})}function o(a,b){for(;a;){if(a==b)return!0;a=a.parentNode}return!1}function p(a,b){return a.indexOf(b)>-1}function q(a){return a.trim().split(/\s+/g)}function r(a,b,c){if(a.indexOf&&!c)return a.indexOf(b);for(var d=0;d<a.length;){if(c&&a[d][c]==b||!c&&a[d]===b)return d;d++}return-1}function s(a){return Array.prototype.slice.call(a,0)}function t(a,b,c){for(var d=[],e=[],f=0;f<a.length;){var g=b?a[f][b]:a[f];r(e,g)<0&&d.push(a[f]),e[f]=g,f++}return c&&(d=b?d.sort(function(a,c){return a[b]>c[b]}):d.sort()),d}function u(a,b){for(var c,e,f=b[0].toUpperCase()+b.slice(1),g=0;g<ma.length;){if(c=ma[g],e=c?c+f:b,e in a)return e;g++}return d}function v(){return ua++}function w(b){var c=b.ownerDocument||b;return c.defaultView||c.parentWindow||a}function x(a,b){var c=this;this.manager=a,this.callback=b,this.element=a.element,this.target=a.options.inputTarget,this.domHandler=function(b){k(a.options.enable,[a])&&c.handler(b)},this.init()}function y(a){var b,c=a.options.inputClass;return new(b=c?c:xa?M:ya?P:wa?R:L)(a,z)}function z(a,b,c){var d=c.pointers.length,e=c.changedPointers.length,f=b&Ea&&d-e===0,g=b&(Ga|Ha)&&d-e===0;c.isFirst=!!f,c.isFinal=!!g,f&&(a.session={}),c.eventType=b,A(a,c),a.emit("hammer.input",c),a.recognize(c),a.session.prevInput=c}function A(a,b){var c=a.session,d=b.pointers,e=d.length;c.firstInput||(c.firstInput=D(b)),e>1&&!c.firstMultiple?c.firstMultiple=D(b):1===e&&(c.firstMultiple=!1);var f=c.firstInput,g=c.firstMultiple,h=g?g.center:f.center,i=b.center=E(d);b.timeStamp=ra(),b.deltaTime=b.timeStamp-f.timeStamp,b.angle=I(h,i),b.distance=H(h,i),B(c,b),b.offsetDirection=G(b.deltaX,b.deltaY);var j=F(b.deltaTime,b.deltaX,b.deltaY);b.overallVelocityX=j.x,b.overallVelocityY=j.y,b.overallVelocity=qa(j.x)>qa(j.y)?j.x:j.y,b.scale=g?K(g.pointers,d):1,b.rotation=g?J(g.pointers,d):0,b.maxPointers=c.prevInput?b.pointers.length>c.prevInput.maxPointers?b.pointers.length:c.prevInput.maxPointers:b.pointers.length,C(c,b);var k=a.element;o(b.srcEvent.target,k)&&(k=b.srcEvent.target),b.target=k}function B(a,b){var c=b.center,d=a.offsetDelta||{},e=a.prevDelta||{},f=a.prevInput||{};b.eventType!==Ea&&f.eventType!==Ga||(e=a.prevDelta={x:f.deltaX||0,y:f.deltaY||0},d=a.offsetDelta={x:c.x,y:c.y}),b.deltaX=e.x+(c.x-d.x),b.deltaY=e.y+(c.y-d.y)}function C(a,b){var c,e,f,g,h=a.lastInterval||b,i=b.timeStamp-h.timeStamp;if(b.eventType!=Ha&&(i>Da||h.velocity===d)){var j=b.deltaX-h.deltaX,k=b.deltaY-h.deltaY,l=F(i,j,k);e=l.x,f=l.y,c=qa(l.x)>qa(l.y)?l.x:l.y,g=G(j,k),a.lastInterval=b}else c=h.velocity,e=h.velocityX,f=h.velocityY,g=h.direction;b.velocity=c,b.velocityX=e,b.velocityY=f,b.direction=g}function D(a){for(var b=[],c=0;c<a.pointers.length;)b[c]={clientX:pa(a.pointers[c].clientX),clientY:pa(a.pointers[c].clientY)},c++;return{timeStamp:ra(),pointers:b,center:E(b),deltaX:a.deltaX,deltaY:a.deltaY}}function E(a){var b=a.length;if(1===b)return{x:pa(a[0].clientX),y:pa(a[0].clientY)};for(var c=0,d=0,e=0;b>e;)c+=a[e].clientX,d+=a[e].clientY,e++;return{x:pa(c/b),y:pa(d/b)}}function F(
//# sourceMappingURL=hammer.min.js.map;
/*global require*/
define('Core/KnockoutHammerBinding',[
    'KnockoutES5',
    'Hammer'
], function (Knockout, Hammer) {
    'use strict';

    var KnockoutHammerBinding = {
        register: function (Knockout) {
            Knockout.bindingHandlers.swipeLeft = {
                init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {
                    var f = Knockout.unwrap(valueAccessor());
                    new Hammer(element).on('swipeleft', function (e) {
                        var viewModel = bindingContext.$data;
                        f.apply(viewModel, arguments);
                    });
                }
            };

            Knockout.bindingHandlers.swipeRight = {
                init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {
                    var f = Knockout.unwrap(valueAccessor());
                    new Hammer(element).on('swiperight', function (e) {
                        var viewModel = bindingContext.$data;
                        f.apply(viewModel, arguments);
                    });
                }
            };
        }
    };

    return KnockoutHammerBinding;
});

/*global require*/
define('Core/registerKnockoutBindings',[
    'Cesium/Widgets/SvgPathBindingHandler',
    'KnockoutES5',
    'Core/KnockoutMarkdownBinding',
    'Core/KnockoutHammerBinding'
], function (
    SvgPathBindingHandler,
    Knockout,
    KnockoutMarkdownBinding,
    KnockoutHammerBinding) {
    'use strict';

    var registerKnockoutBindings = function () {
        SvgPathBindingHandler.register(Knockout);
        KnockoutMarkdownBinding.register(Knockout);
        KnockoutHammerBinding.register(Knockout);

        Knockout.bindingHandlers.embeddedComponent = {
            init: function (element, valueAccessor, allBindings, viewModel, bindingContext) {
                var component = Knockout.unwrap(valueAccessor());
                component.show(element);
                return { controlsDescendantBindings: true };
            },
            update: function (element, valueAccessor, allBindings, viewModel, bindingContext) {
            }
        };
    };

    return registerKnockoutBindings;
});


/*global define*/
define('Core/createFragmentFromTemplate',[
], function () {
    'use strict';

    var createFragmentFromTemplate = function (htmlString) {
        var holder = document.createElement('div');
        holder.innerHTML = htmlString;

        var fragment = document.createDocumentFragment();
        while (holder.firstChild) {
            fragment.appendChild(holder.firstChild);
        }

        return fragment;
    };

    return createFragmentFromTemplate;
});


/*global require*/
define('Core/loadView',[
    'Cesium/Widgets/getElement',
    'KnockoutES5',
    'Core/createFragmentFromTemplate'
], function (
    getElement,
    Knockout,
    createFragmentFromTemplate) {
    'use strict';

    var loadView = function (htmlString, container, viewModel) {
        container = getElement(container);

        var fragment = createFragmentFromTemplate(htmlString);

        // Sadly, fragment.childNodes doesn't have a slice function.
        // This code could be replaced with Array.prototype.slice.call(fragment.childNodes)
        // but that seems slightly error prone.
        var nodes = [];

        var i;
        for (i = 0; i < fragment.childNodes.length; ++i) {
            nodes.push(fragment.childNodes[i]);
        }

        container.appendChild(fragment);

        for (i = 0; i < nodes.length; ++i) {
            var node = nodes[i];
            if (node.nodeType === 1 || node.nodeType === 8) {
                Knockout.applyBindings(viewModel, node);
            }
        }

        return nodes;
    };

    return loadView;
});
/*
 Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com
 (c) 2010-2013, Vladimir Agafonkin
 (c) 2010-2011, CloudMade
*/
!function(t,e,i){var n=t.L,o={};o.version="0.7.7","object"==typeof module&&"object"==typeof module.exports?module.exports=o:"function"==typeof define&&define.amd&&define('leaflet',o),o.noConflict=function(){return t.L=n,this},t.L=o,o.Util={extend:function(t){var e,i,n,o,s=Array.prototype.slice.call(arguments,1);for(i=0,n=s.length;n>i;i++){o=s[i]||{};for(e in o)o.hasOwnProperty(e)&&(t[e]=o[e])}return t},bind:function(t,e){var i=arguments.length>2?Array.prototype.slice.call(arguments,2):null;return function(){return t.apply(e,i||arguments)}},stamp:function(){var t=0,e="_leaflet_id";return function(i){return i[e]=i[e]||++t,i[e]}}(),invokeEach:function(t,e,i){var n,o;if("object"==typeof t){o=Array.prototype.slice.call(arguments,3);for(n in t)e.apply(i,[n,t[n]].concat(o));return!0}return!1},limitExecByInterval:function(t,e,i){var n,o;return function s(){var a=arguments;return n?void(o=!0):(n=!0,setTimeout(function(){n=!1,o&&(s.apply(i,a),o=!1)},e),void t.apply(i,a))}},falseFn:function(){return!1},formatNum:function(t,e){var i=Math.pow(10,e||5);return Math.round(t*i)/i},trim:function(t){return t.trim?t.trim():t.replace(/^\s+|\s+$/g,"")},splitWords:function(t){return o.Util.trim(t).split(/\s+/)},setOptions:function(t,e){return t.options=o.extend({},t.options,e),t.options},getParamString:function(t,e,i){var n=[];for(var o in t)n.push(encodeURIComponent(i?o.toUpperCase():o)+"="+encodeURIComponent(t[o]));return(e&&-1!==e.indexOf("?")?"&":"?")+n.join("&")},template:function(t,e){return t.replace(/\{ *([\w_]+) *\}/g,function(t,n){var o=e[n];if(o===i)throw new Error("No value provided for variable "+t);return"function"==typeof o&&(o=o(e)),o})},isArray:Array.isArray||function(t){return"[object Array]"===Object.prototype.toString.call(t)},emptyImageUrl:"data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs="},function(){function e(e){var i,n,o=["webkit","moz","o","ms"];for(i=0;i<o.length&&!n;i++)n=t[o[i]+e];return n}function i(e){var i=+new Date,o=Math.max(0,16-(i-n));return n=i+o,t.setTimeout(e,o)}var n=0,s=t.requestAnimationFrame||e("RequestAnimationFrame")||i,a=t.cancelAnimationFrame||e("CancelAnimationFrame")||e("CancelRequestAnimationFrame")||function(e){t.clearTimeout(e)};o.Util.requestAnimFrame=function(e,n,a,r){return e=o.bind(e,n),a&&s===i?void e():s.call(t,e,r)},o.Util.cancelAnimFrame=function(e){e&&a.call(t,e)}}(),o.extend=o.Util.extend,o.bind=o.Util.bind,o.stamp=o.Util.stamp,o.setOptions=o.Util.setOptions,o.Class=function(){},o.Class.extend=function(t){var e=function(){this.initialize&&this.initialize.apply(this,arguments),this._initHooks&&this.callInitHooks()},i=function(){};i.prototype=this.prototype;var n=new i;n.constructor=e,e.prototype=n;for(var s in this)this.hasOwnProperty(s)&&"prototype"!==s&&(e[s]=this[s]);t.statics&&(o.extend(e,t.statics),delete t.statics),t.includes&&(o.Util.extend.apply(null,[n].concat(t.includes)),delete t.includes),t.options&&n.options&&(t.options=o.extend({},n.options,t.options)),o.extend(n,t),n._initHooks=[];var a=this;return e.__super__=a.prototype,n.callInitHooks=function(){if(!this._initHooksCalled){a.prototype.callInitHooks&&a.prototype.callInitHooks.call(this),this._initHooksCalled=!0;for(var t=0,e=n._initHooks.length;e>t;t++)n._initHooks[t].call(this)}},e},o.Class.include=function(t){o.extend(this.prototype,t)},o.Class.mergeOptions=function(t){o.extend(this.prototype.options,t)},o.Class.addInitHook=function(t){var e=Array.prototype.slice.call(arguments,1),i="function"==typeof t?t:function(){this[t].apply(this,e)};this.prototype._initHooks=this.prototype._initHooks||[],this.prototype._initHooks.push(i)};var s="_leaflet_events";o.Mixin={},o.Mixin.Events={addEventListener:function(t,e,i){if(o.Util.invokeEach(t,this.addEventListener,this,e,i))return this;var n,a,r,h,l,u,c,d=this[s]=this[s]||{},p=i&&i!==this&&o.stamp(i);for(t=o.Util.splitWords(t),n=0,a=t.length;a>n;n++)r={action:e,context:i||this},h=t[n],p?(l=h+"_idx",u=l+"_len",c=d[l]=d[l]||{},c[p]||(c[p]=[],d[u]=(d[u]||0)+1),c[p].push(r)):(d[h]=d[h]||[],d[h].push(r));return this},hasEventListeners:function(t){var e=this[s];return!!e
transformation:function(){var t=o.Projection.Mercator,e=t.R_MAJOR,i=.5/(Math.PI*e);return new o.Transformation(i,.5,-i,.5)}()}),o.TileLayer=o.Class.extend({includes:o.Mixin.Events,options:{minZoom:0,maxZoom:18,tileSize:256,subdomains:"abc",errorTileUrl:"",attribution:"",zoomOffset:0,opacity:1,unloadInvisibleTiles:o.Browser.mobile,updateWhenIdle:o.Browser.mobile},initialize:function(t,e){e=o.setOptions(this,e),e.detectRetina&&o.Browser.retina&&e.maxZoom>0&&(e.tileSize=Math.floor(e.tileSize/2),e.zoomOffset++,e.minZoom>0&&e.minZoom--,this.options.maxZoom--),e.bounds&&(e.bounds=o.latLngBounds(e.bounds)),this._url=t;var i=this.options.subdomains;"string"==typeof i&&(this.options.subdomains=i.split(""))},onAdd:function(t){this._map=t,this._animated=t._zoomAnimated,this._initContainer(),t.on({viewreset:this._reset,moveend:this._update},this),this._animated&&t.on({zoomanim:this._animateZoom,zoomend:this._endZoomAnim},this),this.options.updateWhenIdle||(this._limitedUpdate=o.Util.limitExecByInterval(this._update,150,this),t.on("move",this._limitedUpdate,this)),this._reset(),this._update()},addTo:function(t){return t.addLayer(this),this},onRemove:function(t){this._container.parentNode.removeChild(this._container),t.off({viewreset:this._reset,moveend:this._update},this),this._animated&&t.off({zoomanim:this._animateZoom,zoomend:this._endZoomAnim},this),this.options.updateWhenIdle||t.off("move",this._limitedUpdate,this),this._container=null,this._map=null},bringToFront:function(){var t=this._map._panes.tilePane;return this._container&&(t.appendChild(this._container),this._setAutoZIndex(t,Math.max)),this},bringToBack:function(){var t=this._map._panes.tilePane;return this._container&&(t.insertBefore(this._container,t.firstChild),this._setAutoZIndex(t,Math.min)),this},getAttribution:function(){return this.options.attribution},getContainer:function(){return this._container},setOpacity:function(t){return this.options.opacity=t,this._map&&this._updateOpacity(),this},setZIndex:function(t){return this.options.zIndex=t,this._updateZIndex(),this},setUrl:function(t,e){return this._url=t,e||this.redraw(),this},redraw:function(){return this._map&&(this._reset({hard:!0}),this._update()),this},_updateZIndex:function(){this._container&&this.options.zIndex!==i&&(this._container.style.zIndex=this.options.zIndex)},_setAutoZIndex:function(t,e){var i,n,o,s=t.children,a=-e(1/0,-(1/0));for(n=0,o=s.length;o>n;n++)s[n]!==this._container&&(i=parseInt(s[n].style.zIndex,10),isNaN(i)||(a=e(a,i)));this.options.zIndex=this._container.style.zIndex=(isFinite(a)?a:0)+e(1,-1)},_updateOpacity:function(){var t,e=this._tiles;if(o.Browser.ielt9)for(t in e)o.DomUtil.setOpacity(e[t],this.options.opacity);else o.DomUtil.setOpacity(this._container,this.options.opacity)},_initContainer:function(){var t=this._map._panes.tilePane;if(!this._container){if(this._container=o.DomUtil.create("div","leaflet-layer"),this._updateZIndex(),this._animated){var e="leaflet-tile-container";this._bgBuffer=o.DomUtil.create("div",e,this._container),this._tileContainer=o.DomUtil.create("div",e,this._container)}else this._tileContainer=this._container;t.appendChild(this._container),this.options.opacity<1&&this._updateOpacity()}},_reset:function(t){for(var e in this._tiles)this.fire("tileunload",{tile:this._tiles[e]});this._tiles={},this._tilesToLoad=0,this.options.reuseTiles&&(this._unusedTiles=[]),this._tileContainer.innerHTML="",this._animated&&t&&t.hard&&this._clearBgBuffer(),this._initContainer()},_getTileSize:function(){var t=this._map,e=t.getZoom()+this.options.zoomOffset,i=this.options.maxNativeZoom,n=this.options.tileSize;return i&&e>i&&(n=Math.round(t.getZoomScale(e)/t.getZoomScale(i)*n)),n},_update:function(){if(this._map){var t=this._map,e=t.getPixelBounds(),i=t.getZoom(),n=this._getTileSize();if(!(i>this.options.maxZoom||i<this.options.minZoom)){var s=o.bounds(e.min.divideBy(n)._floor(),e.max.divideBy(n)._floor());this._addTilesFromCenterOut(s),(this.options.unloadInvisibleTiles||this.options.reuseTiles)&&this._removeOtherTiles(s)}}},_addTilesFromCenterOut:function(t){var i,n,s,a=[],r=
this.on({zoomanim:this._animatePathZoom,zoomend:this._endPathZoom})):o.DomUtil.addClass(this._pathRoot,"leaflet-zoom-hide"),this.on("moveend",this._updateSvgViewport),this._updateSvgViewport())},_animatePathZoom:function(t){var e=this.getZoomScale(t.zoom),i=this._getCenterOffset(t.center)._multiplyBy(-e)._add(this._pathViewport.min);this._pathRoot.style[o.DomUtil.TRANSFORM]=o.DomUtil.getTranslateString(i)+" scale("+e+") ",this._pathZooming=!0},_endPathZoom:function(){this._pathZooming=!1},_updateSvgViewport:function(){if(!this._pathZooming){this._updatePathViewport();var t=this._pathViewport,e=t.min,i=t.max,n=i.x-e.x,s=i.y-e.y,a=this._pathRoot,r=this._panes.overlayPane;o.Browser.mobileWebkit&&r.removeChild(a),o.DomUtil.setPosition(a,e),a.setAttribute("width",n),a.setAttribute("height",s),a.setAttribute("viewBox",[e.x,e.y,n,s].join(" ")),o.Browser.mobileWebkit&&r.appendChild(a)}}}),o.Path.include({bindPopup:function(t,e){return t instanceof o.Popup?this._popup=t:((!this._popup||e)&&(this._popup=new o.Popup(e,this)),this._popup.setContent(t)),this._popupHandlersAdded||(this.on("click",this._openPopup,this).on("remove",this.closePopup,this),this._popupHandlersAdded=!0),this},unbindPopup:function(){return this._popup&&(this._popup=null,this.off("click",this._openPopup).off("remove",this.closePopup),this._popupHandlersAdded=!1),this},openPopup:function(t){return this._popup&&(t=t||this._latlng||this._latlngs[Math.floor(this._latlngs.length/2)],this._openPopup({latlng:t})),this},closePopup:function(){return this._popup&&this._popup._close(),this},_openPopup:function(t){this._popup.setLatLng(t.latlng),this._map.openPopup(this._popup)}}),o.Browser.vml=!o.Browser.svg&&function(){try{var t=e.createElement("div");t.innerHTML='<v:shape adj="1"/>';var i=t.firstChild;return i.style.behavior="url(#default#VML)",i&&"object"==typeof i.adj}catch(n){return!1}}(),o.Path=o.Browser.svg||!o.Browser.vml?o.Path:o.Path.extend({statics:{VML:!0,CLIP_PADDING:.02},_createElement:function(){try{return e.namespaces.add("lvml","urn:schemas-microsoft-com:vml"),function(t){return e.createElement("<lvml:"+t+' class="lvml">')}}catch(t){return function(t){return e.createElement("<"+t+' xmlns="urn:schemas-microsoft.com:vml" class="lvml">')}}}(),_initPath:function(){var t=this._container=this._createElement("shape");o.DomUtil.addClass(t,"leaflet-vml-shape"+(this.options.className?" "+this.options.className:"")),this.options.clickable&&o.DomUtil.addClass(t,"leaflet-clickable"),t.coordsize="1 1",this._path=this._createElement("path"),t.appendChild(this._path),this._map._pathRoot.appendChild(t)},_initStyle:function(){this._updateStyle()},_updateStyle:function(){var t=this._stroke,e=this._fill,i=this.options,n=this._container;n.stroked=i.stroke,n.filled=i.fill,i.stroke?(t||(t=this._stroke=this._createElement("stroke"),t.endcap="round",n.appendChild(t)),t.weight=i.weight+"px",t.color=i.color,t.opacity=i.opacity,i.dashArray?t.dashStyle=o.Util.isArray(i.dashArray)?i.dashArray.join(" "):i.dashArray.replace(/( *, *)/g," "):t.dashStyle="",i.lineCap&&(t.endcap=i.lineCap.replace("butt","flat")),i.lineJoin&&(t.joinstyle=i.lineJoin)):t&&(n.removeChild(t),this._stroke=null),i.fill?(e||(e=this._fill=this._createElement("fill"),n.appendChild(e)),e.color=i.fillColor||i.color,e.opacity=i.fillOpacity):e&&(n.removeChild(e),this._fill=null)},_updatePath:function(){var t=this._container.style;t.display="none",this._path.v=this.getPathString()+" ",t.display=""}}),o.Map.include(o.Browser.svg||!o.Browser.vml?{}:{_initPathRoot:function(){if(!this._pathRoot){var t=this._pathRoot=e.createElement("div");t.className="leaflet-vml-container",this._panes.overlayPane.appendChild(t),this.on("moveend",this._updatePathViewport),this._updatePathViewport()}}}),o.Browser.canvas=function(){return!!e.createElement("canvas").getContext}(),o.Path=o.Path.SVG&&!t.L_PREFER_CANVAS||!o.Browser.canvas?o.Path:o.Path.extend({statics:{CANVAS:!0,SVG:!1},redraw:function(){return this._map&&(this.projectLatlngs(),this._requestUpdate()),this},setStyle:function(t){return o.setOptions(this,t),this._map&&(this._updateS
case"touchend":return this.addPointerListenerEnd(t,e,i,n);case"touchmove":return this.addPointerListenerMove(t,e,i,n);default:throw"Unknown touch event type"}},addPointerListenerStart:function(t,i,n,s){var a="_leaflet_",r=this._pointers,h=function(t){"mouse"!==t.pointerType&&t.pointerType!==t.MSPOINTER_TYPE_MOUSE&&o.DomEvent.preventDefault(t);for(var e=!1,i=0;i<r.length;i++)if(r[i].pointerId===t.pointerId){e=!0;break}e||r.push(t),t.touches=r.slice(),t.changedTouches=[t],n(t)};if(t[a+"touchstart"+s]=h,t.addEventListener(this.POINTER_DOWN,h,!1),!this._pointerDocumentListener){var l=function(t){for(var e=0;e<r.length;e++)if(r[e].pointerId===t.pointerId){r.splice(e,1);break}};e.documentElement.addEventListener(this.POINTER_UP,l,!1),e.documentElement.addEventListener(this.POINTER_CANCEL,l,!1),this._pointerDocumentListener=!0}return this},addPointerListenerMove:function(t,e,i,n){function o(t){if(t.pointerType!==t.MSPOINTER_TYPE_MOUSE&&"mouse"!==t.pointerType||0!==t.buttons){for(var e=0;e<a.length;e++)if(a[e].pointerId===t.pointerId){a[e]=t;break}t.touches=a.slice(),t.changedTouches=[t],i(t)}}var s="_leaflet_",a=this._pointers;return t[s+"touchmove"+n]=o,t.addEventListener(this.POINTER_MOVE,o,!1),this},addPointerListenerEnd:function(t,e,i,n){var o="_leaflet_",s=this._pointers,a=function(t){for(var e=0;e<s.length;e++)if(s[e].pointerId===t.pointerId){s.splice(e,1);break}t.touches=s.slice(),t.changedTouches=[t],i(t)};return t[o+"touchend"+n]=a,t.addEventListener(this.POINTER_UP,a,!1),t.addEventListener(this.POINTER_CANCEL,a,!1),this},removePointerListener:function(t,e,i){var n="_leaflet_",o=t[n+e+i];switch(e){case"touchstart":t.removeEventListener(this.POINTER_DOWN,o,!1);break;case"touchmove":t.removeEventListener(this.POINTER_MOVE,o,!1);break;case"touchend":t.removeEventListener(this.POINTER_UP,o,!1),t.removeEventListener(this.POINTER_CANCEL,o,!1)}return this}}),o.Map.mergeOptions({touchZoom:o.Browser.touch&&!o.Browser.android23,bounceAtZoomLimits:!0}),o.Map.TouchZoom=o.Handler.extend({addHooks:function(){o.DomEvent.on(this._map._container,"touchstart",this._onTouchStart,this)},removeHooks:function(){o.DomEvent.off(this._map._container,"touchstart",this._onTouchStart,this)},_onTouchStart:function(t){var i=this._map;if(t.touches&&2===t.touches.length&&!i._animatingZoom&&!this._zooming){var n=i.mouseEventToLayerPoint(t.touches[0]),s=i.mouseEventToLayerPoint(t.touches[1]),a=i._getCenterLayerPoint();this._startCenter=n.add(s)._divideBy(2),this._startDist=n.distanceTo(s),this._moved=!1,this._zooming=!0,this._centerOffset=a.subtract(this._startCenter),i._panAnim&&i._panAnim.stop(),o.DomEvent.on(e,"touchmove",this._onTouchMove,this).on(e,"touchend",this._onTouchEnd,this),o.DomEvent.preventDefault(t)}},_onTouchMove:function(t){var e=this._map;if(t.touches&&2===t.touches.length&&this._zooming){var i=e.mouseEventToLayerPoint(t.touches[0]),n=e.mouseEventToLayerPoint(t.touches[1]);this._scale=i.distanceTo(n)/this._startDist,this._delta=i._add(n)._divideBy(2)._subtract(this._startCenter),1!==this._scale&&(e.options.bounceAtZoomLimits||!(e.getZoom()===e.getMinZoom()&&this._scale<1||e.getZoom()===e.getMaxZoom()&&this._scale>1))&&(this._moved||(o.DomUtil.addClass(e._mapPane,"leaflet-touching"),e.fire("movestart").fire("zoomstart"),this._moved=!0),o.Util.cancelAnimFrame(this._animRequest),this._animRequest=o.Util.requestAnimFrame(this._updateOnMove,this,!0,this._map._container),o.DomEvent.preventDefault(t))}},_updateOnMove:function(){var t=this._map,e=this._getScaleOrigin(),i=t.layerPointToLatLng(e),n=t.getScaleZoom(this._scale);t._animateZoom(i,n,this._startCenter,this._scale,this._delta,!1,!0)},_onTouchEnd:function(){if(!this._moved||!this._zooming)return void(this._zooming=!1);var t=this._map;this._zooming=!1,o.DomUtil.removeClass(t._mapPane,"leaflet-touching"),o.Util.cancelAnimFrame(this._animRequest),o.DomEvent.off(e,"touchmove",this._onTouchMove).off(e,"touchend",this._onTouchEnd);var i=this._getScaleOrigin(),n=t.layerPointToLatLng(i),s=t.getZoom(),a=t.getScaleZoom(this._scale)-s,r=a>0?Math.ceil(a):Math.floor(a),h=t._limitZoom(s+r),l=t.get
/*global define*/
define('ViewModels/DistanceLegendViewModel',[
    'Cesium/Core/defined',
    'Cesium/Core/DeveloperError',
    'Cesium/Core/EllipsoidGeodesic',
    'Cesium/Core/Cartesian2',
    'Cesium/Core/getTimestamp',
    'Cesium/Core/EventHelper',
    'KnockoutES5',
    'Core/loadView',
    'leaflet'
], function (
    defined,
    DeveloperError,
    EllipsoidGeodesic,
    Cartesian2,
    getTimestamp,
    EventHelper,
    Knockout,
    loadView,
    leaflet) {
    'use strict';

    var DistanceLegendViewModel = function (options) {
        if (!defined(options) || !defined(options.terria)) {
            throw new DeveloperError('options.terria is required.');
        }

        this.terria = options.terria;
        this._removeSubscription = undefined;
        this._lastLegendUpdate = undefined;
        this.eventHelper = new EventHelper();

        this.distanceLabel = undefined;
        this.barWidth = undefined;
        
        this.enableDistanceLegend =  (defined(options.enableDistanceLegend))?options.enableDistanceLegend:true;

        Knockout.track(this, ['distanceLabel', 'barWidth']);

        this.eventHelper.add(this.terria.afterWidgetChanged, function () {
            if (defined(this._removeSubscription)) {
                this._removeSubscription();
                this._removeSubscription = undefined;
            }
        }, this);
//        this.terria.beforeWidgetChanged.addEventListener(function () {
//            if (defined(this._removeSubscription)) {
//                this._removeSubscription();
//                this._removeSubscription = undefined;
//            }
//        }, this);

        var that = this;

        function addUpdateSubscription() {
            if (defined(that.terria)) {
                var scene = that.terria.scene;
                that._removeSubscription = scene.postRender.addEventListener(function () {
                    updateDistanceLegendCesium(this, scene);
                }, that);
            } else if (defined(that.terria.leaflet)) {
                var map = that.terria.leaflet.map;

                var potentialChangeCallback = function potentialChangeCallback() {
                    updateDistanceLegendLeaflet(that, map);
                };

                that._removeSubscription = function () {
                    map.off('zoomend', potentialChangeCallback);
                    map.off('moveend', potentialChangeCallback);
                };

                map.on('zoomend', potentialChangeCallback);
                map.on('moveend', potentialChangeCallback);

                updateDistanceLegendLeaflet(that, map);
            }
        }

        addUpdateSubscription();
        this.eventHelper.add(this.terria.afterWidgetChanged, function () {
            addUpdateSubscription();
        }, this);
        //this.terria.afterWidgetChanged.addEventListener(function() {
        //    addUpdateSubscription();
        // }, this);
    };


    DistanceLegendViewModel.prototype.destroy = function () {

        this.eventHelper.removeAll();
    };

    DistanceLegendViewModel.prototype.show = function (container) {
        var testing ;
        if ( this.enableDistanceLegend)
        {
             testing = '<div class="distance-legend" data-bind="visible: distanceLabel && barWidth">' +
                '<div class="distance-legend-label" data-bind="text: distanceLabel"></div>' +
                '<div class="distance-legend-scale-bar" data-bind="style: { width: barWidth + \'px\', left: (5 + (125 - barWidth) / 2) + \'px\' }"></div>' +
                '</div>';
        }
        else
        {
             testing = '<div class="distance-legend"  style="display: none;" data-bind="visible: distanceLabel && barWidth">' +
                '<div class="distance-legend-label"  data-bind="text: distanceLabel"></div>' +
                '<div class="distance-legend-scale-bar"  data-bind="style: { width: barWidth + \'px\', left: (5 + (125 - barWidth) / 2) + \'px\' }"></div>' +
                '</div>';
        }
        loadView(testing, container, this);
        // loadView(distanceLegendTemplate, container, this);
        //loadView(require('fs').readFileSync(__dirname + '/../Views/DistanceLegend.html', 'utf8'), container, this);
    };

    DistanceLegendViewModel.create = function (options) {
        var result = new DistanceLegendViewModel(options);
        result.show(options.container);
        return result;
    };

    var geodesic = new EllipsoidGeodesic();

    var distances = [
        1, 2, 3, 5,
        10, 20, 30, 50,
        100, 200, 300, 500,
        1000, 2000, 3000, 5000,
        10000, 20000, 30000, 50000,
        100000, 200000, 300000, 500000,
        1000000, 2000000, 3000000, 5000000,
        10000000, 20000000, 30000000, 50000000];

    function updateDistanceLegendCesium(viewModel, scene) {
        if (!viewModel.enableDistanceLegend)
        {
             viewModel.barWidth = undefined;
            viewModel.distanceLabel = undefined;
            return;
        }
        var now = getTimestamp();
        if (now < viewModel._lastLegendUpdate + 250) {
            return;
        }

        viewModel._lastLegendUpdate = now;

        // Find the distance between two pixels at the bottom center of the screen.
        var width = scene.canvas.clientWidth;
        var height = scene.canvas.clientHeight;

        var left = scene.camera.getPickRay(new Cartesian2((width / 2) | 0, height - 1));
        var right = scene.camera.getPickRay(new Cartesian2(1 + (width / 2) | 0, height - 1));

        var globe = scene.globe;
        var leftPosition = globe.pick(left, scene);
        var rightPosition = globe.pick(right, scene);

        if (!defined(leftPosition) || !defined(rightPosition)) {
            viewModel.barWidth = undefined;
            viewModel.distanceLabel = undefined;
            return;
        }

        var leftCartographic = globe.ellipsoid.cartesianToCartographic(leftPosition);
        var rightCartographic = globe.ellipsoid.cartesianToCartographic(rightPosition);

        geodesic.setEndPoints(leftCartographic, rightCartographic);
        var pixelDistance = geodesic.surfaceDistance;

        // Find the first distance that makes the scale bar less than 100 pixels.
        var maxBarWidth = 100;
        var distance;
        for (var i = distances.length - 1; !defined(distance) && i >= 0; --i) {
            if (distances[i] / pixelDistance < maxBarWidth) {
                distance = distances[i];
            }
        }

        if (defined(distance)) {
            var label;
            if (distance >= 1000) {
                label = (distance / 1000).toString() + ' km';
            } else {
                label = distance.toString() + ' m';
            }

            viewModel.barWidth = (distance / pixelDistance) | 0;
            viewModel.distanceLabel = label;
        } else {
            viewModel.barWidth = undefined;
            viewModel.distanceLabel = undefined;
        }
    }

    function updateDistanceLegendLeaflet(viewModel, map) {
        var halfHeight = map.getSize().y / 2;
        var maxPixelWidth = 100;
        var maxMeters = map.containerPointToLatLng([0, halfHeight]).distanceTo(
            map.containerPointToLatLng([maxPixelWidth, halfHeight]));

        var meters = leaflet.control.scale()._getRoundNum(maxMeters);
        var label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';

        viewModel.barWidth = (meters / maxMeters) * maxPixelWidth;
        viewModel.distanceLabel = label;
    }

    return DistanceLegendViewModel;
});

/*global require*/
define('ViewModels/UserInterfaceControl',[
    'Cesium/Core/defined',
    'Cesium/Core/defineProperties',
    'Cesium/Core/DeveloperError',
    'KnockoutES5'
], function (
    defined,
    defineProperties,
    DeveloperError,
    Knockout) {
    'use strict';

    /**
     * The view-model for a control in the user interface
     *
     * @alias UserInterfaceControl
     * @constructor
     * @abstract
     *
     * @param {Terria} terria The Terria instance.
     */
    var UserInterfaceControl = function (terria) {

        if (!defined(terria)) {
            throw new DeveloperError('terria is required');
        }

        this._terria = terria;

        /**
         * Gets or sets the name of the control which is set as the controls title.
         * This property is observable.
         * @type {String}
         */
        this.name = 'Unnamed Control';

        /**
         * Gets or sets the text to be displayed in the UI control.
         * This property is observable.
         * @type {String}
         */
        this.text = undefined;

        /**
         * Gets or sets the svg icon of the control.  This property is observable.
         * @type {Object}
         */
        this.svgIcon = undefined;

        /**
         * Gets or sets the height of the svg icon.  This property is observable.
         * @type {Integer}
         */
        this.svgHeight = undefined;

        /**
         * Gets or sets the width of the svg icon.  This property is observable.
         * @type {Integer}
         */
        this.svgWidth = undefined;

        /**
         * Gets or sets the CSS class of the control. This property is observable.
         * @type {String}
         */
        this.cssClass = undefined;

        /**
         * Gets or sets the property describing whether or not the control is in the active state.
         * This property is observable.
         * @type {Boolean}
         */
        this.isActive = false;

        Knockout.track(this, ['name', 'svgIcon', 'svgHeight', 'svgWidth', 'cssClass', 'isActive']);
    };

    defineProperties(UserInterfaceControl.prototype, {
        /**
         * Gets the Terria instance.
         * @memberOf UserInterfaceControl.prototype
         * @type {Terria}
         */
        terria: {
            get: function () {
                return this._terria;
            }
        },
        /**
         * Gets a value indicating whether this button has text associated with it.
         * @type {Object}
         */
        hasText: {
            get: function () {
                return defined(this.text) && typeof this.text === 'string';
            }
        }

    });

    /**
     * When implemented in a derived class, performs an action when the user clicks
     * on this control.
     * @abstract
     * @protected
     */
    UserInterfaceControl.prototype.activate = function () {
        throw new DeveloperError('activate must be implemented in the derived class.');
    };

    return UserInterfaceControl;
});

/*global require*/
define('ViewModels/NavigationControl',[
    'ViewModels/UserInterfaceControl'
], function (
    UserInterfaceControl) {
    'use strict';

    /**
     * The view-model for a control in the navigation control tool bar
     *
     * @alias NavigationControl
     * @constructor
     * @abstract
     *
     * @param {Terria} terria The Terria instance.
     */
    var NavigationControl = function (terria) {
        UserInterfaceControl.apply(this, arguments);
    };

    NavigationControl.prototype = Object.create(UserInterfaceControl.prototype);

    return NavigationControl;
});

/*global define*/
define('SvgPaths/svgReset',[
], function () {
    'use strict';

    return 'M 7.5,0 C 3.375,0 0,3.375 0,7.5 0,11.625 3.375,15 7.5,15 c 3.46875,0 6.375,-2.4375 7.21875,-5.625 l -1.96875,0 C 12,11.53125 9.9375,13.125 7.5,13.125 4.40625,13.125 1.875,10.59375 1.875,7.5 1.875,4.40625 4.40625,1.875 7.5,1.875 c 1.59375,0 2.90625,0.65625 3.9375,1.6875 l -3,3 6.5625,0 L 15,0 12.75,2.25 C 11.4375,0.84375 9.5625,0 7.5,0 z';
});
/*global require*/
define('ViewModels/ResetViewNavigationControl',[
    'Cesium/Core/defined',
    'Cesium/Scene/Camera',
    'Cesium/Core/Rectangle',
    'Cesium/Core/Cartographic',
    'ViewModels/NavigationControl',
    'SvgPaths/svgReset'
], function (
    defined,
    Camera,
    Rectangle,
    Cartographic,
    NavigationControl,
    svgReset) {
        'use strict';

    /**
     * The model for a zoom in control in the navigation control tool bar
     *
     * @alias ResetViewNavigationControl
     * @constructor
     * @abstract
     *
     * @param {Terria} terria The Terria instance.
     */
    var ResetViewNavigationControl = function (terria) {
        NavigationControl.apply(this, arguments);

        /**
         * Gets or sets the name of the control which is set as the control's title.
         * This property is observable.
         * @type {String}
         */
        this.name = 'Reset View';

        /**
         * Gets or sets the svg icon of the control.  This property is observable.
         * @type {Object}
         */
        this.svgIcon = svgReset;

        /**
         * Gets or sets the height of the svg icon.  This property is observable.
         * @type {Integer}
         */
        this.svgHeight = 15;

        /**
         * Gets or sets the width of the svg icon.  This property is observable.
         * @type {Integer}
         */
        this.svgWidth = 15;

        /**
         * Gets or sets the CSS class of the control. This property is observable.
         * @type {String}
         */
        this.cssClass = "navigation-control-icon-reset";

    };

    ResetViewNavigationControl.prototype = Object.create(NavigationControl.prototype);

    ResetViewNavigationControl.prototype.resetView = function () {
        //this.terria.analytics.logEvent('navigation', 'click', 'reset');

        var scene = this.terria.scene;

        var sscc = scene.screenSpaceCameraController;
        if (!sscc.enableInputs) {
            return;
        }

        this.isActive = true;

        var camera = scene.camera;

        if (defined(this.terria.trackedEntity)) {
            // when tracking do not reset to default view but to default view of tracked entity
            var trackedEntity = this.terria.trackedEntity;
            this.terria.trackedEntity = undefined;
            this.terria.trackedEntity = trackedEntity;
        } else {
            // reset to a default position or view defined in the options
            if (this.terria.options.defaultResetView) {
                if (this.terria.options.defaultResetView && this.terria.options.defaultResetView instanceof Cartographic) {
                    camera.flyTo({
                        destination: scene.globe.ellipsoid.cartographicToCartesian(this.terria.options.defaultResetView)
                    });
                } else if (this.terria.options.defaultResetView && this.terria.options.defaultResetView instanceof Rectangle) {
                    try {
                        Rectangle.validate(this.terria.options.defaultResetView);
                        camera.flyTo({
                            destination: this.terria.options.defaultResetView
                        });
                    } catch (e) {
                        console.log("Cesium-navigation/ResetViewNavigationControl:   options.defaultResetView Cesium rectangle is  invalid!");
                    }
                }
            }
            else if (typeof camera.flyHome === "function") {
                camera.flyHome(1);
            } else {
                camera.flyTo({'destination': Camera.DEFAULT_VIEW_RECTANGLE, 'duration': 1});
            }
        }
        this.isActive = false;
    };

    /**
     * When implemented in a derived class, performs an action when the user clicks
     * on this control
     * @abstract
     * @protected
     */
    ResetViewNavigationControl.prototype.activate = function () {
        this.resetView();
    };

    return ResetViewNavigationControl;
});

/*global require*/
define('Core/Utils',[
    'Cesium/Core/defined',
    'Cesium/Core/Ray',
    'Cesium/Core/Cartesian3',
    'Cesium/Core/Cartographic',
    'Cesium/Core/ReferenceFrame',
    'Cesium/Scene/SceneMode'
], function (
    defined,
    Ray,
    Cartesian3,
    Cartographic,
    ReferenceFrame,
    SceneMode) {
    'use strict';

    var Utils = {};

    var unprojectedScratch = new Cartographic();
    var rayScratch = new Ray();

    /**
     * gets the focus point of the camera
     * @param {Viewer|Widget} terria The terria
     * @param {boolean} inWorldCoordinates true to get the focus in world coordinates, otherwise get it in projection-specific map coordinates, in meters.
     * @param {Cartesian3} [result] The object in which the result will be stored.
     * @return {Cartesian3} The modified result parameter, a new instance if none was provided or undefined if there is no focus point.
     */
    Utils.getCameraFocus = function (terria, inWorldCoordinates, result) {
        var scene = terria.scene;
        var camera = scene.camera;

        if(scene.mode == SceneMode.MORPHING) {
            return undefined;
        }

        if(!defined(result)) {
            result = new Cartesian3();
        }

        // TODO bug when tracking: if entity moves the current position should be used and not only the one when starting orbiting/rotating
        // TODO bug when tracking: reset should reset to default view of tracked entity

        if(defined(terria.trackedEntity)) {
            result = terria.trackedEntity.position.getValue(terria.clock.currentTime, result);
        } else {
            rayScratch.origin = camera.positionWC;
            rayScratch.direction = camera.directionWC;
            result = scene.globe.pick(rayScratch, scene, result);
        }

        if (!defined(result)) {
            return undefined;
        }

        if(scene.mode == SceneMode.SCENE2D || scene.mode == SceneMode.COLUMBUS_VIEW) {
            result = camera.worldToCameraCoordinatesPoint(result, result);

            if(inWorldCoordinates) {
                result = scene.globe.ellipsoid.cartographicToCartesian(scene.mapProjection.unproject(result, unprojectedScratch), result);
            }
        } else {
            if(!inWorldCoordinates) {
                result = camera.worldToCameraCoordinatesPoint(result, result);
            }
        }

        return result;
    };

    return Utils;
});

/*global require*/
define('ViewModels/ZoomNavigationControl',[
    'Cesium/Core/defined',
    'Cesium/Core/Ray',
    'Cesium/Core/IntersectionTests',
    'Cesium/Core/Cartesian3',
    'Cesium/Scene/SceneMode',
    'ViewModels/NavigationControl',
    'Core/Utils'
], function (
    defined,
    Ray,
    IntersectionTests,
    Cartesian3,
    SceneMode,
    NavigationControl,
    Utils) {
    'use strict';

    /**
     * The model for a zoom in control in the navigation control tool bar
     *
     * @alias ZoomOutNavigationControl
     * @constructor
     * @abstract
     *
     * @param {Terria} terria The Terria instance.
     * @param {boolean} zoomIn is used for zooming in (true) or out (false)
     */
    var ZoomNavigationControl = function (terria, zoomIn) {
        NavigationControl.apply(this, arguments);

        /**
         * Gets or sets the name of the control which is set as the control's title.
         * This property is observable.
         * @type {String}
         */
        this.name = 'Zoom ' + (zoomIn ? 'In' : 'Out');

        /**
         * Gets or sets the text to be displayed in the nav control. Controls that
         * have text do not display the svgIcon.
         * This property is observable.
         * @type {String}
         */
        this.text = zoomIn ? '+' : '-';

        /**
         * Gets or sets the CSS class of the control. This property is observable.
         * @type {String}
         */
        this.cssClass = 'navigation-control-icon-zoom-' + (zoomIn ? 'in' : 'out');

        this.relativeAmount = 2;

        if (zoomIn) {
            // this ensures that zooming in is the inverse of zooming out and vice versa
            // e.g. the camera position remains when zooming in and out
            this.relativeAmount = 1 / this.relativeAmount;
        }
    };

    ZoomNavigationControl.prototype.relativeAmount = 1;

    ZoomNavigationControl.prototype = Object.create(NavigationControl.prototype);

    /**
     * When implemented in a derived class, performs an action when the user clicks
     * on this control
     * @abstract
     * @protected
     */
    ZoomNavigationControl.prototype.activate = function () {
        this.zoom(this.relativeAmount);
    };

    var cartesian3Scratch = new Cartesian3();

    ZoomNavigationControl.prototype.zoom = function (relativeAmount) {
        // this.terria.analytics.logEvent('navigation', 'click', 'zoomIn');

        this.isActive = true;

        if (defined(this.terria)) {
            var scene = this.terria.scene;

            var sscc = scene.screenSpaceCameraController;
            // do not zoom if it is disabled
            if (!sscc.enableInputs || !sscc.enableZoom) {
                return;
            }
            // TODO
//            if(scene.mode == SceneMode.COLUMBUS_VIEW && !sscc.enableTranslate) {
//                return;
//            }

            var camera = scene.camera;
            var orientation;

            switch (scene.mode) {
                case SceneMode.MORPHING:
                    break;
                case SceneMode.SCENE2D:
                    camera.zoomIn(camera.positionCartographic.height * (1 - this.relativeAmount));
                    break;
                default:
                    var focus;

                    if(defined(this.terria.trackedEntity)) {
                        focus = new Cartesian3();
                    } else {
                        focus = Utils.getCameraFocus(this.terria, false);
                    }

                    if (!defined(focus)) {
                        // Camera direction is not pointing at the globe, so use the ellipsoid horizon point as
                        // the focal point.
                        var ray = new Ray(camera.worldToCameraCoordinatesPoint(scene.globe.ellipsoid.cartographicToCartesian(camera.positionCartographic)), camera.directionWC);
                        focus = IntersectionTests.grazingAltitudeLocation(ray, scene.globe.ellipsoid);

                        orientation = {
                            heading: camera.heading,
                            pitch: camera.pitch,
                            roll: camera.roll
                        };
                    } else {
                        orientation = {
                            direction: camera.direction,
                            up: camera.up
                        };
                    }

                    var direction = Cartesian3.subtract(camera.position, focus, cartesian3Scratch);
                    var movementVector = Cartesian3.multiplyByScalar(direction, relativeAmount, direction);
                    var endPosition = Cartesian3.add(focus, movementVector, focus);

                    if (defined(this.terria.trackedEntity) || scene.mode == SceneMode.COLUMBUS_VIEW) {
                        // sometimes flyTo does not work (jumps to wrong position) so just set the position without any animation
                        // do not use flyTo when tracking an entity because during animatiuon the position of the entity may change
                        camera.position = endPosition;
                    } else {
                        camera.flyTo({
                            destination: endPosition,
                            orientation: orientation,
                            duration: 0.5,
                            convert: false
                        });
                    }
            }
        }

        // this.terria.notifyRepaintRequired();
        this.isActive = false;
    };

    return ZoomNavigationControl;
});

/*global define*/
define('SvgPaths/svgCompassOuterRing',[
], function () {
    'use strict';

    return 'm 66.5625,0 0,15.15625 3.71875,0 0,-10.40625 5.5,10.40625 4.375,0 0,-15.15625 -3.71875,0 0,10.40625 L 70.9375,0 66.5625,0 z M 72.5,20.21875 c -28.867432,0 -52.28125,23.407738 -52.28125,52.28125 0,28.87351 23.413818,52.3125 52.28125,52.3125 28.86743,0 52.28125,-23.43899 52.28125,-52.3125 0,-28.873512 -23.41382,-52.28125 -52.28125,-52.28125 z m 0,1.75 c 13.842515,0 26.368948,5.558092 35.5,14.5625 l -11.03125,11 0.625,0.625 11.03125,-11 c 8.9199,9.108762 14.4375,21.579143 14.4375,35.34375 0,13.764606 -5.5176,26.22729 -14.4375,35.34375 l -11.03125,-11 -0.625,0.625 11.03125,11 c -9.130866,9.01087 -21.658601,14.59375 -35.5,14.59375 -13.801622,0 -26.321058,-5.53481 -35.4375,-14.5 l 11.125,-11.09375 c 6.277989,6.12179 14.857796,9.90625 24.3125,9.90625 19.241896,0 34.875,-15.629154 34.875,-34.875 0,-19.245847 -15.633104,-34.84375 -34.875,-34.84375 -9.454704,0 -18.034511,3.760884 -24.3125,9.875 L 37.0625,36.4375 C 46.179178,27.478444 58.696991,21.96875 72.5,21.96875 z m -0.875,0.84375 0,13.9375 1.75,0 0,-13.9375 -1.75,0 z M 36.46875,37.0625 47.5625,48.15625 C 41.429794,54.436565 37.65625,63.027539 37.65625,72.5 c 0,9.472461 3.773544,18.055746 9.90625,24.34375 L 36.46875,107.9375 c -8.96721,-9.1247 -14.5,-21.624886 -14.5,-35.4375 0,-13.812615 5.53279,-26.320526 14.5,-35.4375 z M 72.5,39.40625 c 18.297686,0 33.125,14.791695 33.125,33.09375 0,18.302054 -14.827314,33.125 -33.125,33.125 -18.297687,0 -33.09375,-14.822946 -33.09375,-33.125 0,-18.302056 14.796063,-33.09375 33.09375,-33.09375 z M 22.84375,71.625 l 0,1.75 13.96875,0 0,-1.75 -13.96875,0 z m 85.5625,0 0,1.75 14,0 0,-1.75 -14,0 z M 71.75,108.25 l 0,13.9375 1.71875,0 0,-13.9375 -1.71875,0 z';
});
/*global define*/
define('SvgPaths/svgCompassGyro',[
], function () {
    'use strict';

    return 'm 72.71875,54.375 c -0.476702,0 -0.908208,0.245402 -1.21875,0.5625 -0.310542,0.317098 -0.551189,0.701933 -0.78125,1.1875 -0.172018,0.363062 -0.319101,0.791709 -0.46875,1.25 -6.91615,1.075544 -12.313231,6.656514 -13,13.625 -0.327516,0.117495 -0.661877,0.244642 -0.9375,0.375 -0.485434,0.22959 -0.901634,0.471239 -1.21875,0.78125 -0.317116,0.310011 -0.5625,0.742111 -0.5625,1.21875 l 0.03125,0 c 0,0.476639 0.245384,0.877489 0.5625,1.1875 0.317116,0.310011 0.702066,0.58291 1.1875,0.8125 0.35554,0.168155 0.771616,0.32165 1.21875,0.46875 1.370803,6.10004 6.420817,10.834127 12.71875,11.8125 0.146999,0.447079 0.30025,0.863113 0.46875,1.21875 0.230061,0.485567 0.470708,0.870402 0.78125,1.1875 0.310542,0.317098 0.742048,0.5625 1.21875,0.5625 0.476702,0 0.876958,-0.245402 1.1875,-0.5625 0.310542,-0.317098 0.582439,-0.701933 0.8125,-1.1875 0.172018,-0.363062 0.319101,-0.791709 0.46875,-1.25 6.249045,-1.017063 11.256351,-5.7184 12.625,-11.78125 0.447134,-0.1471 0.86321,-0.300595 1.21875,-0.46875 0.485434,-0.22959 0.901633,-0.502489 1.21875,-0.8125 0.317117,-0.310011 0.5625,-0.710861 0.5625,-1.1875 l -0.03125,0 c 0,-0.476639 -0.245383,-0.908739 -0.5625,-1.21875 C 89.901633,71.846239 89.516684,71.60459 89.03125,71.375 88.755626,71.244642 88.456123,71.117495 88.125,71 87.439949,64.078341 82.072807,58.503735 75.21875,57.375 c -0.15044,-0.461669 -0.326927,-0.884711 -0.5,-1.25 -0.230061,-0.485567 -0.501958,-0.870402 -0.8125,-1.1875 -0.310542,-0.317098 -0.710798,-0.5625 -1.1875,-0.5625 z m -0.0625,1.40625 c 0.03595,-0.01283 0.05968,0 0.0625,0 0.0056,0 0.04321,-0.02233 0.1875,0.125 0.144288,0.147334 0.34336,0.447188 0.53125,0.84375 0.06385,0.134761 0.123901,0.309578 0.1875,0.46875 -0.320353,-0.01957 -0.643524,-0.0625 -0.96875,-0.0625 -0.289073,0 -0.558569,0.04702 -0.84375,0.0625 C 71.8761,57.059578 71.936151,56.884761 72,56.75 c 0.18789,-0.396562 0.355712,-0.696416 0.5,-0.84375 0.07214,-0.07367 0.120304,-0.112167 0.15625,-0.125 z m 0,2.40625 c 0.448007,0 0.906196,0.05436 1.34375,0.09375 0.177011,0.592256 0.347655,1.271044 0.5,2.03125 0.475097,2.370753 0.807525,5.463852 0.9375,8.9375 -0.906869,-0.02852 -1.834463,-0.0625 -2.78125,-0.0625 -0.92298,0 -1.802327,0.03537 -2.6875,0.0625 0.138529,-3.473648 0.493653,-6.566747 0.96875,-8.9375 0.154684,-0.771878 0.320019,-1.463985 0.5,-2.0625 0.405568,-0.03377 0.804291,-0.0625 1.21875,-0.0625 z m -2.71875,0.28125 c -0.129732,0.498888 -0.259782,0.987558 -0.375,1.5625 -0.498513,2.487595 -0.838088,5.693299 -0.96875,9.25 -3.21363,0.15162 -6.119596,0.480068 -8.40625,0.9375 -0.682394,0.136509 -1.275579,0.279657 -1.84375,0.4375 0.799068,-6.135482 5.504716,-11.036454 11.59375,-12.1875 z M 75.5,58.5 c 6.043169,1.18408 10.705093,6.052712 11.5,12.15625 -0.569435,-0.155806 -1.200273,-0.302525 -1.875,-0.4375 -2.262525,-0.452605 -5.108535,-0.783809 -8.28125,-0.9375 -0.130662,-3.556701 -0.470237,-6.762405 -0.96875,-9.25 C 75.761959,59.467174 75.626981,58.990925 75.5,58.5 z m -2.84375,12.09375 c 0.959338,0 1.895843,0.03282 2.8125,0.0625 C 75.48165,71.267751 75.5,71.871028 75.5,72.5 c 0,1.228616 -0.01449,2.438313 -0.0625,3.59375 -0.897358,0.0284 -1.811972,0.0625 -2.75,0.0625 -0.927373,0 -1.831062,-0.03473 -2.71875,-0.0625 -0.05109,-1.155437 -0.0625,-2.365134 -0.0625,-3.59375 0,-0.628972 0.01741,-1.232249 0.03125,-1.84375 0.895269,-0.02827 1.783025,-0.0625 2.71875,-0.0625 z M 68.5625,70.6875 c -0.01243,0.60601 -0.03125,1.189946 -0.03125,1.8125 0,1.22431 0.01541,2.407837 0.0625,3.5625 -3.125243,-0.150329 -5.92077,-0.471558 -8.09375,-0.90625 -0.784983,-0.157031 -1.511491,-0.316471 -2.125,-0.5 -0.107878,-0.704096 -0.1875,-1.422089 -0.1875,-2.15625 0,-0.115714 0.02849,-0.228688 0.03125,-0.34375 0.643106,-0.20284 1.389577,-0.390377 2.25,-0.5625 2.166953,-0.433487 4.97905,-0.75541 8.09375,-0.90625 z m 8.3125,0.03125 c 3.075121,0.15271 5.824455,0.446046 7.96875,0.875 0.857478,0.171534 1.630962,0.360416 2.28125,0.5625 0.0027,0.114659 0,0.228443 0,0.34375 0,0.735827 -0.07914,1.450633 -0.1875,2.15625 -0.598568,0.180148 -1.29077,0.34562 -2.0625,0.5 -2.158064,0.431708 -4.932088,0.754666 -8.03125,0.90625 0.04709,-1.154663 
});
/*global define*/
define('SvgPaths/svgCompassRotationMarker',[
], function () {
    'use strict';

    return 'M 72.46875,22.03125 C 59.505873,22.050338 46.521615,27.004287 36.6875,36.875 L 47.84375,47.96875 C 61.521556,34.240041 83.442603,34.227389 97.125,47.90625 l 11.125,-11.125 C 98.401629,26.935424 85.431627,22.012162 72.46875,22.03125 z';
});
/*global define*/
define('ViewModels/NavigationViewModel',[
    'Cesium/Core/defined',
    'Cesium/Core/Math',
    'Cesium/Core/getTimestamp',
    'Cesium/Core/EventHelper',
    'Cesium/Core/Transforms',
    'Cesium/Scene/SceneMode',
    'Cesium/Core/Cartesian2',
    'Cesium/Core/Cartesian3',
    'Cesium/Core/Matrix4',
    'Cesium/Core/BoundingSphere',
    'Cesium/Core/HeadingPitchRange',
    'KnockoutES5',
    'Core/loadView',
    'ViewModels/ResetViewNavigationControl',
    'ViewModels/ZoomNavigationControl',
    'SvgPaths/svgCompassOuterRing',
    'SvgPaths/svgCompassGyro',
    'SvgPaths/svgCompassRotationMarker',
    'Core/Utils'
], function(
    defined,
    CesiumMath,
    getTimestamp,
    EventHelper,
    Transforms,
    SceneMode,
    Cartesian2,
    Cartesian3,
    Matrix4,
    BoundingSphere,
    HeadingPitchRange,
    Knockout,
    loadView,
    ResetViewNavigationControl,
    ZoomNavigationControl,
    svgCompassOuterRing,
    svgCompassGyro,
    svgCompassRotationMarker,
    Utils) {
    'use strict';

    var NavigationViewModel = function(options) {

        this.terria = options.terria;
        this.eventHelper = new EventHelper();
        this.enableZoomControls = (defined(options.enableZoomControls)) ? options.enableZoomControls : true;
        this.enableCompass = (defined(options.enableCompass)) ? options.enableCompass : true;

        // if (this.showZoomControls)
        //   {
        this.controls = options.controls;
        if (!defined(this.controls)) {
            this.controls = [
                new ZoomNavigationControl(this.terria, true),
                new ResetViewNavigationControl(this.terria),
                new ZoomNavigationControl(this.terria, false)
            ];
        }
        //}

        this.svgCompassOuterRing = svgCompassOuterRing;
        this.svgCompassGyro = svgCompassGyro;
        this.svgCompassRotationMarker = svgCompassRotationMarker;

        this.showCompass = defined(this.terria) && this.enableCompass;
        this.heading = this.showCompass ? this.terria.scene.camera.heading : 0.0;

        this.isOrbiting = false;
        this.orbitCursorAngle = 0;
        this.orbitCursorOpacity = 0.0;
        this.orbitLastTimestamp = 0;
        this.orbitFrame = undefined;
        this.orbitIsLook = false;
        this.orbitMouseMoveFunction = undefined;
        this.orbitMouseUpFunction = undefined;

        this.isRotating = false;
        this.rotateInitialCursorAngle = undefined;
        this.rotateFrame = undefined;
        this.rotateIsLook = false;
        this.rotateMouseMoveFunction = undefined;
        this.rotateMouseUpFunction = undefined;

        this._unsubcribeFromPostRender = undefined;

        Knockout.track(this, ['controls', 'showCompass', 'heading', 'isOrbiting', 'orbitCursorAngle', 'isRotating']);

        var that = this;

        function widgetChange() {
            if (defined(that.terria)) {
                if (that._unsubcribeFromPostRender) {
                    that._unsubcribeFromPostRender();
                    that._unsubcribeFromPostRender = undefined;
                }

                that.showCompass = true && that.enableCompass;

                that._unsubcribeFromPostRender = that.terria.scene.postRender.addEventListener(function() {
                    that.heading = that.terria.scene.camera.heading;
                });
            } else {
                if (that._unsubcribeFromPostRender) {
                    that._unsubcribeFromPostRender();
                    that._unsubcribeFromPostRender = undefined;
                }
                that.showCompass = false;
            }
        }

        this.eventHelper.add(this.terria.afterWidgetChanged, widgetChange, this);
        //this.terria.afterWidgetChanged.addEventListener(widgetChange);

        widgetChange();
    };


    NavigationViewModel.prototype.destroy = function() {

        this.eventHelper.removeAll();

        //loadView(require('fs').readFileSync(baseURLEmpCesium + 'js-lib/terrajs/lib/Views/Navigation.html', 'utf8'), container, this);

    };

    NavigationViewModel.prototype.show = function(container) {
        var testing;
        if (this.enableZoomControls && this.enableCompass) {
            testing = '<div class="compass" title="Drag outer ring: rotate view. ' +
                'Drag inner gyroscope: free orbit.' +
                'Double-click: reset view.' +
                'TIP: You can also free orbit by holding the CTRL key and dragging the map." data-bind="visible: showCompass, event: { mousedown: handleMouseDown, dblclick: handleDoubleClick }">' +
                '<div class="compass-outer-ring-background"></div>' +
                ' <div class="compass-rotation-marker" data-bind="visible: isOrbiting, style: { transform: \'rotate(-\' + orbitCursorAngle + \'rad)\', \'-webkit-transform\': \'rotate(-\' + orbitCursorAngle + \'rad)\', opacity: orbitCursorOpacity }, cesiumSvgPath: { path: svgCompassRotationMarker, width: 145, height: 145 }"></div>' +
                ' <div class="compass-outer-ring" title="Click and drag to rotate the camera" data-bind="style: { transform: \'rotate(-\' + heading + \'rad)\', \'-webkit-transform\': \'rotate(-\' + heading + \'rad)\' }, cesiumSvgPath: { path: svgCompassOuterRing, width: 145, height: 145 }"></div>' +
                ' <div class="compass-gyro-background"></div>' +
                ' <div class="compass-gyro" data-bind="cesiumSvgPath: { path: svgCompassGyro, width: 145, height: 145 }, css: { \'compass-gyro-active\': isOrbiting }"></div>' +
                '</div>' +
                '<div class="navigation-controls">' +
                '<!-- ko foreach: controls -->' +
                '<div data-bind="click: activate, attr: { title: $data.name }, css: $root.isLastControl($data) ? \'navigation-control-last\' : \'navigation-control\' ">' +
                '   <!-- ko if: $data.hasText -->' +
                '   <div data-bind="text: $data.text, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '   <!-- /ko -->' +
                '  <!-- ko ifnot: $data.hasText -->' +
                '  <div data-bind="cesiumSvgPath: { path: $data.svgIcon, width: $data.svgWidth, height: $data.svgHeight }, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '  <!-- /ko -->' +
                ' </div>' +
                ' <!-- /ko -->' +
                '</div>';
        } else if (!this.enableZoomControls && this.enableCompass) {
            testing = '<div class="compass" title="Drag outer ring: rotate view. ' +
                'Drag inner gyroscope: free orbit.' +
                'Double-click: reset view.' +
                'TIP: You can also free orbit by holding the CTRL key and dragging the map." data-bind="visible: showCompass, event: { mousedown: handleMouseDown, dblclick: handleDoubleClick }">' +
                '<div class="compass-outer-ring-background"></div>' +
                ' <div class="compass-rotation-marker" data-bind="visible: isOrbiting, style: { transform: \'rotate(-\' + orbitCursorAngle + \'rad)\', \'-webkit-transform\': \'rotate(-\' + orbitCursorAngle + \'rad)\', opacity: orbitCursorOpacity }, cesiumSvgPath: { path: svgCompassRotationMarker, width: 145, height: 145 }"></div>' +
                ' <div class="compass-outer-ring" title="Click and drag to rotate the camera" data-bind="style: { transform: \'rotate(-\' + heading + \'rad)\', \'-webkit-transform\': \'rotate(-\' + heading + \'rad)\' }, cesiumSvgPath: { path: svgCompassOuterRing, width: 145, height: 145 }"></div>' +
                ' <div class="compass-gyro-background"></div>' +
                ' <div class="compass-gyro" data-bind="cesiumSvgPath: { path: svgCompassGyro, width: 145, height: 145 }, css: { \'compass-gyro-active\': isOrbiting }"></div>' +
                '</div>' +
                '<div class="navigation-controls"  style="display: none;" >' +
                '<!-- ko foreach: controls -->' +
                '<div data-bind="click: activate, attr: { title: $data.name }, css: $root.isLastControl($data) ? \'navigation-control-last\' : \'navigation-control\' ">' +
                '   <!-- ko if: $data.hasText -->' +
                '   <div data-bind="text: $data.text, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '   <!-- /ko -->' +
                '  <!-- ko ifnot: $data.hasText -->' +
                '  <div data-bind="cesiumSvgPath: { path: $data.svgIcon, width: $data.svgWidth, height: $data.svgHeight }, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '  <!-- /ko -->' +
                ' </div>' +
                ' <!-- /ko -->' +
                '</div>';
        } else if (this.enableZoomControls && !this.enableCompass) {
            testing = '<div class="compass"  style="display: none;" title="Drag outer ring: rotate view. ' +
                'Drag inner gyroscope: free orbit.' +
                'Double-click: reset view.' +
                'TIP: You can also free orbit by holding the CTRL key and dragging the map." data-bind="visible: showCompass, event: { mousedown: handleMouseDown, dblclick: handleDoubleClick }">' +
                '<div class="compass-outer-ring-background"></div>' +
                ' <div class="compass-rotation-marker" data-bind="visible: isOrbiting, style: { transform: \'rotate(-\' + orbitCursorAngle + \'rad)\', \'-webkit-transform\': \'rotate(-\' + orbitCursorAngle + \'rad)\', opacity: orbitCursorOpacity }, cesiumSvgPath: { path: svgCompassRotationMarker, width: 145, height: 145 }"></div>' +
                ' <div class="compass-outer-ring" title="Click and drag to rotate the camera" data-bind="style: { transform: \'rotate(-\' + heading + \'rad)\', \'-webkit-transform\': \'rotate(-\' + heading + \'rad)\' }, cesiumSvgPath: { path: svgCompassOuterRing, width: 145, height: 145 }"></div>' +
                ' <div class="compass-gyro-background"></div>' +
                ' <div class="compass-gyro" data-bind="cesiumSvgPath: { path: svgCompassGyro, width: 145, height: 145 }, css: { \'compass-gyro-active\': isOrbiting }"></div>' +
                '</div>' +
                '<div class="navigation-controls"    >' +
                '<!-- ko foreach: controls -->' +
                '<div data-bind="click: activate, attr: { title: $data.name }, css: $root.isLastControl($data) ? \'navigation-control-last\' : \'navigation-control\' ">' +
                '   <!-- ko if: $data.hasText -->' +
                '   <div data-bind="text: $data.text, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '   <!-- /ko -->' +
                '  <!-- ko ifnot: $data.hasText -->' +
                '  <div data-bind="cesiumSvgPath: { path: $data.svgIcon, width: $data.svgWidth, height: $data.svgHeight }, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '  <!-- /ko -->' +
                ' </div>' +
                ' <!-- /ko -->' +
                '</div>';
        } else if (!this.enableZoomControls && !this.enableCompass) {
            testing = '<div class="compass"  style="display: none;" title="Drag outer ring: rotate view. ' +
                'Drag inner gyroscope: free orbit.' +
                'Double-click: reset view.' +
                'TIP: You can also free orbit by holding the CTRL key and dragging the map." data-bind="visible: showCompass, event: { mousedown: handleMouseDown, dblclick: handleDoubleClick }">' +
                '<div class="compass-outer-ring-background"></div>' +
                ' <div class="compass-rotation-marker" data-bind="visible: isOrbiting, style: { transform: \'rotate(-\' + orbitCursorAngle + \'rad)\', \'-webkit-transform\': \'rotate(-\' + orbitCursorAngle + \'rad)\', opacity: orbitCursorOpacity }, cesiumSvgPath: { path: svgCompassRotationMarker, width: 145, height: 145 }"></div>' +
                ' <div class="compass-outer-ring" title="Click and drag to rotate the camera" data-bind="style: { transform: \'rotate(-\' + heading + \'rad)\', \'-webkit-transform\': \'rotate(-\' + heading + \'rad)\' }, cesiumSvgPath: { path: svgCompassOuterRing, width: 145, height: 145 }"></div>' +
                ' <div class="compass-gyro-background"></div>' +
                ' <div class="compass-gyro" data-bind="cesiumSvgPath: { path: svgCompassGyro, width: 145, height: 145 }, css: { \'compass-gyro-active\': isOrbiting }"></div>' +
                '</div>' +
                '<div class="navigation-controls"   style="display: none;" >' +
                '<!-- ko foreach: controls -->' +
                '<div data-bind="click: activate, attr: { title: $data.name }, css: $root.isLastControl($data) ? \'navigation-control-last\' : \'navigation-control\' ">' +
                '   <!-- ko if: $data.hasText -->' +
                '   <div data-bind="text: $data.text, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '   <!-- /ko -->' +
                '  <!-- ko ifnot: $data.hasText -->' +
                '  <div data-bind="cesiumSvgPath: { path: $data.svgIcon, width: $data.svgWidth, height: $data.svgHeight }, css: $data.isActive ?  \'navigation-control-icon-active \' + $data.cssClass : $data.cssClass"></div>' +
                '  <!-- /ko -->' +
                ' </div>' +
                ' <!-- /ko -->' +
                '</div>';
        }
        loadView(testing, container, this);
        // loadView(navigatorTemplate, container, this);
        //loadView(require('fs').readFileSync(baseURLEmpCesium + 'js-lib/terrajs/lib/Views/Navigation.html', 'utf8'), container, this);

    };

    /**
     * Adds a control to this toolbar.
     * @param {NavControl} control The control to add.
     */
    NavigationViewModel.prototype.add = function(control) {
        this.controls.push(control);
    };

    /**
     * Removes a control from this toolbar.
     * @param {NavControl} control The control to remove.
     */
    NavigationViewModel.prototype.remove = function(control) {
        this.controls.remove(control);
    };

    /**
     * Checks if the control given is the last control in the control array.
     * @param {NavControl} control The control to remove.
     */
    NavigationViewModel.prototype.isLastControl = function(control) {
        return (control === this.controls[this.controls.length - 1]);
    };

    var vectorScratch = new Cartesian2();

    NavigationViewModel.prototype.handleMouseDown = function(viewModel, e) {
        var scene = this.terria.scene;
        if (scene.mode === SceneMode.MORPHING) {
            return true;
        }

        var compassElement = e.currentTarget;
        var compassRectangle = e.currentTarget.getBoundingClientRect();
        var maxDistance = compassRectangle.width / 2.0;
        var center = new Cartesian2((compassRectangle.right - compassRectangle.left) / 2.0, (compassRectangle.bottom - compassRectangle.top) / 2.0);
        var clickLocation = new Cartesian2(e.clientX - compassRectangle.left, e.clientY - compassRectangle.top);
        var vector = Cartesian2.subtract(clickLocation, center, vectorScratch);
        var distanceFromCenter = Cartesian2.magnitude(vector);

        var distanceFraction = distanceFromCenter / maxDistance;

        var nominalTotalRadius = 145;
        var norminalGyroRadius = 50;

        if (distanceFraction < norminalGyroRadius / nominalTotalRadius) {
            orbit(this, compassElement, vector);
            //            return false;
        } else if (distanceFraction < 1.0) {
            rotate(this, compassElement, vector);
            //            return false;
        } else {
            return true;
        }
    };

    var oldTransformScratch = new Matrix4();
    var newTransformScratch = new Matrix4();
    var centerScratch = new Cartesian3();

    NavigationViewModel.prototype.handleDoubleClick = function(viewModel, e) {
        var scene = viewModel.terria.scene;
        var camera = scene.camera;

        var sscc = scene.screenSpaceCameraController;

        if (scene.mode == SceneMode.MORPHING || !sscc.enableInputs) {
            return true;
        }
        if (scene.mode == SceneMode.COLUMBUS_VIEW && !sscc.enableTranslate) {
            return;
        }
        if (scene.mode == SceneMode.SCENE3D || scene.mode == SceneMode.COLUMBUS_VIEW) {
            if (!sscc.enableLook) {
                return;
            }

            if (scene.mode == SceneMode.SCENE3D) {
                if (!sscc.enableRotate) {
                    return
                }
            }
        }

        var center = Utils.getCameraFocus(viewModel.terria, true, centerScratch);

        if (!defined(center)) {
            // Globe is barely visible, so reset to home view.

            this.controls[1].resetView();
            return;
        }

        var cameraPosition = scene.globe.ellipsoid.cartographicToCartesian(camera.positionCartographic, new Cartesian3());

        var surfaceNormal = scene.globe.ellipsoid.geodeticSurfaceNormal(center);

        var focusBoundingSphere = new BoundingSphere(center, 0);

        camera.flyToBoundingSphere(focusBoundingSphere, {
            offset: new HeadingPitchRange(0,
                // do not use camera.pitch since the pitch at the center/target is required
                CesiumMath.PI_OVER_TWO - Cartesian3.angleBetween(
                    surfaceNormal,
                    camera.directionWC
                ),
                // distanceToBoundingSphere returns wrong values when in 2D or Columbus view so do not use
                // camera.distanceToBoundingSphere(focusBoundingSphere)
                // instead calculate distance manually
                Cartesian3.distance(cameraPosition, center)
            ),
            duration: 1.5
        });
    };

    NavigationViewModel.create = function(options) {
        //options.enableZoomControls = this.enableZoomControls;
        //options.enableCompass = this.enableCompass;
        var result = new NavigationViewModel(options);
        result.show(options.container);
        return result;
    };

    function orbit(viewModel, compassElement, cursorVector) {
        var scene = viewModel.terria.scene;


        var sscc = scene.screenSpaceCameraController;

        // do not orbit if it is disabled
        if (scene.mode == SceneMode.MORPHING || !sscc.enableInputs) {
            return;
        }

        switch (scene.mode) {
            case SceneMode.COLUMBUS_VIEW:
                if (sscc.enableLook) {
                    break;
                }

                if (!sscc.enableTranslate || !sscc.enableTilt) {
                    return;
                }
                break;
            case SceneMode.SCENE3D:
                if (sscc.enableLook) {
                    break;
                }

                if (!sscc.enableTilt || !sscc.enableRotate) {
                    return;
                }
                break;
            case SceneMode.SCENE2D:
                if (!sscc.enableTranslate) {
                    return;
                }
                break;
        }

        // Remove existing event handlers, if any.
        document.removeEventListener('mousemove', viewModel.orbitMouseMoveFunction, false);
        document.removeEventListener('mouseup', viewModel.orbitMouseUpFunction, false);

        if (defined(viewModel.orbitTickFunction)) {
            viewModel.terria.clock.onTick.removeEventListener(viewModel.orbitTickFunction);
        }

        viewModel.orbitMouseMoveFunction = undefined;
        viewModel.orbitMouseUpFunction = undefined;
        viewModel.orbitTickFunction = undefined;

        viewModel.isOrbiting = true;
        viewModel.orbitLastTimestamp = getTimestamp();

        var camera = scene.camera;

        if (defined(viewModel.terria.trackedEntity)) {
            // when tracking an entity simply use that reference frame
            viewModel.orbitFrame = undefined;
            viewModel.orbitIsLook = false;
        } else {
            var center = Utils.getCameraFocus(viewModel.terria, true, centerScratch);

            if (!defined(center)) {
                viewModel.orbitFrame = Transforms.eastNorthUpToFixedFrame(camera.positionWC, scene.globe.ellipsoid, newTransformScratch);
                viewModel.orbitIsLook = true;
            } else {
                viewModel.orbitFrame = Transforms.eastNorthUpToFixedFrame(center, scene.globe.ellipsoid, newTransformScratch);
                viewModel.orbitIsLook = false;
            }
        }

        viewModel.orbitTickFunction = function(e) {
            var timestamp = getTimestamp();
            var deltaT = timestamp - viewModel.orbitLastTimestamp;
            var rate = (viewModel.orbitCursorOpacity - 0.5) * 2.5 / 1000;
            var distance = deltaT * rate;

            var angle = viewModel.orbitCursorAngle + CesiumMath.PI_OVER_TWO;
            var x = Math.cos(angle) * distance;
            var y = Math.sin(angle) * distance;

            var oldTransform;

            if (defined(viewModel.orbitFrame)) {
                oldTransform = Matrix4.clone(camera.transform, oldTransformScratch);

                camera.lookAtTransform(viewModel.orbitFrame);
            }

            // do not look up/down or rotate in 2D mode
            if (scene.mode == SceneMode.SCENE2D) {
                camera.move(new Cartesian3(x, y, 0), Math.max(scene.canvas.clientWidth, scene.canvas.clientHeight) / 100 * camera.positionCartographic.height * distance);
            } else {
                if (viewModel.orbitIsLook) {
                    camera.look(Cartesian3.UNIT_Z, -x);
                    camera.look(camera.right, -y);
                } else {
                    camera.rotateLeft(x);
                    camera.rotateUp(y);
                }
            }

            if (defined(viewModel.orbitFrame)) {
                camera.lookAtTransform(oldTransform);
            }

            // viewModel.terria.cesium.notifyRepaintRequired();

            viewModel.orbitLastTimestamp = timestamp;
        };

        function updateAngleAndOpacity(vector, compassWidth) {
            var angle = Math.atan2(-vector.y, vector.x);
            viewModel.orbitCursorAngle = CesiumMath.zeroToTwoPi(angle - CesiumMath.PI_OVER_TWO);

            var distance = Cartesian2.magnitude(vector);
            var maxDistance = compassWidth / 2.0;
            var distanceFraction = Math.min(distance / maxDistance, 1.0);
            var easedOpacity = 0.5 * distanceFraction * distanceFraction + 0.5;
            viewModel.orbitCursorOpacity = easedOpacity;

            //viewModel.terria.cesium.notifyRepaintRequired();
        }

        viewModel.orbitMouseMoveFunction = function(e) {
            var compassRectangle = compassElement.getBoundingClientRect();
            var center = new Cartesian2((compassRectangle.right - compassRectangle.left) / 2.0, (compassRectangle.bottom - compassRectangle.top) / 2.0);
            var clickLocation = new Cartesian2(e.clientX - compassRectangle.left, e.clientY - compassRectangle.top);
            var vector = Cartesian2.subtract(clickLocation, center, vectorScratch);
            updateAngleAndOpacity(vector, compassRectangle.width);
        };

        viewModel.orbitMouseUpFunction = function(e) {
            // TODO: if mouse didn't move, reset view to looking down, north is up?

            viewModel.isOrbiting = false;
            document.removeEventListener('mousemove', viewModel.orbitMouseMoveFunction, false);
            document.removeEventListener('mouseup', viewModel.orbitMouseUpFunction, false);

            if (defined(viewModel.orbitTickFunction)) {
                viewModel.terria.clock.onTick.removeEventListener(viewModel.orbitTickFunction);
            }

            viewModel.orbitMouseMoveFunction = undefined;
            viewModel.orbitMouseUpFunction = undefined;
            viewModel.orbitTickFunction = undefined;
        };

        document.addEventListener('mousemove', viewModel.orbitMouseMoveFunction, false);
        document.addEventListener('mouseup', viewModel.orbitMouseUpFunction, false);
        viewModel.terria.clock.onTick.addEventListener(viewModel.orbitTickFunction);

        updateAngleAndOpacity(cursorVector, compassElement.getBoundingClientRect().width);
    }

    function rotate(viewModel, compassElement, cursorVector) {
        viewModel.terria.options.enableCompassOuterRing = (
            defined(viewModel.terria.options.enableCompassOuterRing)) ? viewModel.terria.options.enableCompassOuterRing : true;
        if (viewModel.terria.options.enableCompassOuterRing) {
            var scene = viewModel.terria.scene;
            var camera = scene.camera;

            var sscc = scene.screenSpaceCameraController;
            // do not rotate in 2D mode or if rotating is disabled
            if (scene.mode == SceneMode.MORPHING || scene.mode == SceneMode.SCENE2D || !sscc.enableInputs) {
                return;
            }
            if (!sscc.enableLook && (scene.mode == SceneMode.COLUMBUS_VIEW || (scene.mode == SceneMode.SCENE3D && !sscc.enableRotate))) {
                return;
            }

            // Remove existing event handlers, if any.
            document.removeEventListener('mousemove', viewModel.rotateMouseMoveFunction, false);
            document.removeEventListener('mouseup', viewModel.rotateMouseUpFunction, false);

            viewModel.rotateMouseMoveFunction = undefined;
            viewModel.rotateMouseUpFunction = undefined;

            viewModel.isRotating = true;
            viewModel.rotateInitialCursorAngle = Math.atan2(-cursorVector.y, cursorVector.x);

            if (defined(viewModel.terria.trackedEntity)) {
                // when tracking an entity simply use that reference frame
                viewModel.rotateFrame = undefined;
                viewModel.rotateIsLook = false;
            } else {
                var viewCenter = Utils.getCameraFocus(viewModel.terria, true, centerScratch);

                if (!defined(viewCenter) || (scene.mode == SceneMode.COLUMBUS_VIEW && !sscc.enableLook && !sscc.enableTranslate)) {
                    viewModel.rotateFrame = Transforms.eastNorthUpToFixedFrame(camera.positionWC, scene.globe.ellipsoid, newTransformScratch);
                    viewModel.rotateIsLook = true;
                } else {
                    viewModel.rotateFrame = Transforms.eastNorthUpToFixedFrame(viewCenter, scene.globe.ellipsoid, newTransformScratch);
                    viewModel.rotateIsLook = false;
                }
            }

            var oldTransform;
            if (defined(viewModel.rotateFrame)) {
                oldTransform = Matrix4.clone(camera.transform, oldTransformScratch);
                camera.lookAtTransform(viewModel.rotateFrame);
            }

            viewModel.rotateInitialCameraAngle = -camera.heading;

            if (defined(viewModel.rotateFrame)) {
                camera.lookAtTransform(oldTransform);
            }

            viewModel.rotateMouseMoveFunction = function(e) {
                var compassRectangle = compassElement.getBoundingClientRect();
                var center = new Cartesian2((compassRectangle.right - compassRectangle.left) / 2.0, (compassRectangle.bottom - compassRectangle.top) / 2.0);
                var clickLocation = new Cartesian2(e.clientX - compassRectangle.left, e.clientY - compassRectangle.top);
                var vector = Cartesian2.subtract(clickLocation, center, vectorScratch);
                var angle = Math.atan2(-vector.y, vector.x);

                var angleDifference = angle - viewModel.rotateInitialCursorAngle;
                var newCameraAngle = CesiumMath.zeroToTwoPi(viewModel.rotateInitialCameraAngle - angleDifference);

                var camera = viewModel.terria.scene.camera;

                var oldTransform;
                if (defined(viewModel.rotateFrame)) {
                    oldTransform = Matrix4.clone(camera.transform, oldTransformScratch);
                    camera.lookAtTransform(viewModel.rotateFrame);
                }

                var currentCameraAngle = -camera.heading;
                camera.rotateRight(newCameraAngle - currentCameraAngle);

                if (defined(viewModel.rotateFrame)) {
                    camera.lookAtTransform(oldTransform);
                }

                // viewModel.terria.cesium.notifyRepaintRequired();
            };

            viewModel.rotateMouseUpFunction = function(e) {
                viewModel.isRotating = false;
                document.removeEventListener('mousemove', viewModel.rotateMouseMoveFunction, false);
                document.removeEventListener('mouseup', viewModel.rotateMouseUpFunction, false);

                viewModel.rotateMouseMoveFunction = undefined;
                viewModel.rotateMouseUpFunction = undefined;
            };

            document.addEventListener('mousemove', viewModel.rotateMouseMoveFunction, false);
            document.addEventListener('mouseup', viewModel.rotateMouseUpFunction, false);
        }
    }
    return NavigationViewModel;
});

/*global define*/
define('CesiumNavigation',[
    'Cesium/Core/defined',
    'Cesium/Core/defineProperties',
//    'Cesium/Core/defaultValue',
    'Cesium/Core/Event',
    'KnockoutES5',
    'Core/registerKnockoutBindings',
    'ViewModels/DistanceLegendViewModel',
    'ViewModels/NavigationViewModel'
], function (
        defined,
        defineProperties,
//    defaultValue,
        CesiumEvent,
        Knockout,
        registerKnockoutBindings,
        DistanceLegendViewModel,
        NavigationViewModel)
{
    'use strict';

    /**
     * @alias CesiumNavigation
     * @constructor
     *
     * @param {Viewer|CesiumWidget} viewerCesiumWidget The Viewer or CesiumWidget instance
     */
    var CesiumNavigation = function (viewerCesiumWidget) {
        initialize.apply(this, arguments);

        this._onDestroyListeners = [];
    };

    CesiumNavigation.prototype.distanceLegendViewModel = undefined;
    CesiumNavigation.prototype.navigationViewModel = undefined;
    CesiumNavigation.prototype.navigationDiv = undefined;
    CesiumNavigation.prototype.distanceLegendDiv = undefined;
    CesiumNavigation.prototype.terria = undefined;
    CesiumNavigation.prototype.container = undefined;
    CesiumNavigation.prototype._onDestroyListeners = undefined;

    CesiumNavigation.prototype.destroy = function ()
    {
        if (defined(this.navigationViewModel))
        {
            this.navigationViewModel.destroy();
        }
        if (defined(this.distanceLegendViewModel))
        {
            this.distanceLegendViewModel.destroy();
        }

        if (defined(this.navigationDiv))
        {
            this.navigationDiv.parentNode.removeChild(this.navigationDiv);
        }
        delete this.navigationDiv;

        if (defined(this.distanceLegendDiv))
        {
            this.distanceLegendDiv.parentNode.removeChild(this.distanceLegendDiv);
        }
        delete this.distanceLegendDiv;

        if (defined(this.container))
        {
            this.container.parentNode.removeChild(this.container);
        }
        delete this.container;

        for (var i = 0; i < this._onDestroyListeners.length; i++)
        {
            this._onDestroyListeners[i]();
        }
    };

    CesiumNavigation.prototype.addOnDestroyListener = function (callback)
    {
        if (typeof callback === "function")
        {
            this._onDestroyListeners.push(callback);
        }
    };

    /**
     * @param {Viewer|CesiumWidget} viewerCesiumWidget The Viewer or CesiumWidget instance
     * @param options
     */
    function initialize(viewerCesiumWidget, options) {
        if (!defined(viewerCesiumWidget)) {
            throw new DeveloperError('CesiumWidget or Viewer is required.');
        }

//        options = defaultValue(options, defaultValue.EMPTY_OBJECT);

        var cesiumWidget = defined(viewerCesiumWidget.cesiumWidget) ? viewerCesiumWidget.cesiumWidget : viewerCesiumWidget;

        var container = document.createElement('div');
        container.className = 'cesium-widget-cesiumNavigationContainer';
        cesiumWidget.container.appendChild(container);

        this.terria = viewerCesiumWidget;
        this.terria.options = (defined(options))?options :{};
        this.terria.afterWidgetChanged = new CesiumEvent();
        this.terria.beforeWidgetChanged = new CesiumEvent();
        this.container = container;
        
        //this.navigationDiv.setAttribute("id", "navigationDiv");
        
           
          // Register custom Knockout.js bindings.  If you're not using the TerriaJS user interface, you can remove this.
        registerKnockoutBindings();

        if (!defined(this.terria.options.enableDistanceLegend) || this.terria.options.enableDistanceLegend)
        {
            this.distanceLegendDiv = document.createElement('div');
             container.appendChild(this.distanceLegendDiv);
            this.distanceLegendDiv.setAttribute("id", "distanceLegendDiv");
            this.distanceLegendViewModel = DistanceLegendViewModel.create({
                container: this.distanceLegendDiv,
                terria: this.terria,
                mapElement: container,
                enableDistanceLegend: true
            });
           
        }
     

        if ((!defined(this.terria.options.enableZoomControls) || this.terria.options.enableZoomControls) && (!defined(this.terria.options.enableCompass) || this.terria.options.enableCompass))
        {
            this.navigationDiv = document.createElement('div');
            this.navigationDiv.setAttribute("id", "navigationDiv");
            container.appendChild(this.navigationDiv);
            // Create the navigation controls.
            this.navigationViewModel = NavigationViewModel.create({
                container: this.navigationDiv,
                terria: this.terria,
                enableZoomControls: true,
                enableCompass: true
            });
        }
        else  if ((defined(this.terria.options.enableZoomControls) && !this.terria.options.enableZoomControls) && (!defined(this.terria.options.enableCompass) || this.terria.options.enableCompass))
        {
            this.navigationDiv = document.createElement('div');
            this.navigationDiv.setAttribute("id", "navigationDiv");
            container.appendChild(this.navigationDiv);
            // Create the navigation controls.
            this.navigationViewModel = NavigationViewModel.create({
                container: this.navigationDiv,
                terria: this.terria,
                enableZoomControls: false,
                enableCompass: true
            });
        }
        else  if ((!defined(this.terria.options.enableZoomControls) || this.terria.options.enableZoomControls) && (defined(this.terria.options.enableCompass) && !this.terria.options.enableCompass))
        {
            this.navigationDiv = document.createElement('div');
            this.navigationDiv.setAttribute("id", "navigationDiv");
            container.appendChild(this.navigationDiv);
            // Create the navigation controls.
            this.navigationViewModel = NavigationViewModel.create({
                container: this.navigationDiv,
                terria: this.terria,
                enableZoomControls: true,
                enableCompass: false
            });
        }
        else  if ((defined(this.terria.options.enableZoomControls) &&  !this.terria.options.enableZoomControls) && (defined(this.terria.options.enableCompass) &&  !this.terria.options.enableCompass))
        {
            //this.navigationDiv.setAttribute("id", "navigationDiv");
           // container.appendChild(this.navigationDiv);
            // Create the navigation controls.
//            this.navigationViewModel = NavigationViewModel.create({
//                container: this.navigationDiv,
//                terria: this.terria,
//                enableZoomControls: false,
//                enableCompass: false
//            });
        }

    }

    return CesiumNavigation;
});

define('dummy/require-less/less/dummy',[],function(){});
/**
 * Created by Larcius on 18.02.16.
 */
/*global define*/
define('viewerCesiumNavigationMixin',[
    'Cesium/Core/defined',
    'Cesium/Core/defineProperties',
    'Cesium/Core/DeveloperError',
    'CesiumNavigation',
    'dummy/require-less/less/dummy'
], function(
    defined,
    defineProperties,
    DeveloperError,
    CesiumNavigation) {
    'use strict';

    /**
     * A mixin which adds the Compass/Navigation widget to the Viewer widget.
     * Rather than being called directly, this function is normally passed as
     * a parameter to {@link Viewer#extend}, as shown in the example below.
     * @exports viewerCesiumNavigationMixin
     *
     * @param {Viewer} viewer The viewer instance.
     * @param {{}} options The options.
     *
     * @exception {DeveloperError} viewer is required.
     *
     * @demo {@link http://localhost:8080/index.html|run local server with examples}
     *
     * @example
     * var viewer = new Cesium.Viewer('cesiumContainer');
     * viewer.extend(viewerCesiumNavigationMixin);
     */
    function viewerCesiumNavigationMixin(viewer, options) {
        if (!defined(viewer)) {
            throw new DeveloperError('viewer is required.');
        }

        var cesiumNavigation = init(viewer, options);

        cesiumNavigation.addOnDestroyListener((function (viewer) {
            return function () {
                delete viewer.cesiumNavigation;
            };
        })(viewer));

        defineProperties(viewer, {
            cesiumNavigation: {
                configurable: true,
                get: function () {
                    return viewer.cesiumWidget.cesiumNavigation;
                }
            }
        });
    }

    /**
     *
     * @param {CesiumWidget} cesiumWidget The cesium widget instance.
     * @param {{}} options The options.
     */
    viewerCesiumNavigationMixin.mixinWidget = function (cesiumWidget, options) {
        return init.apply(undefined, arguments);
    };

    /**
     * @param {Viewer|CesiumWidget} viewerCesiumWidget The Viewer or CesiumWidget instance
     * @param {{}} options the options
     */
    var init = function (viewerCesiumWidget, options) {
        var cesiumNavigation = new CesiumNavigation(viewerCesiumWidget, options);

        var cesiumWidget = defined(viewerCesiumWidget.cesiumWidget) ? viewerCesiumWidget.cesiumWidget : viewerCesiumWidget;

        defineProperties(cesiumWidget, {
            cesiumNavigation: {
                configurable: true,
                get: function () {
                    return cesiumNavigation;
                }
            }
        });

        cesiumNavigation.addOnDestroyListener((function (cesiumWidget) {
            return function () {
                delete cesiumWidget.cesiumNavigation;
            };
        })(cesiumWidget));

        return cesiumNavigation;
    };

    return viewerCesiumNavigationMixin;
});

(function(c){var d=document,a='appendChild',i='styleSheet',s=d.createElement('style');s.type='text/css';d.getElementsByTagName('head')[0][a](s);s[i]?s[i].cssText=c:s[a](d.createTextNode(c));})
('.full-window{position:absolute;top:0;left:0;right:0;bottom:0;margin:0;overflow:hidden;padding:0;-webkit-transition:left .25s ease-out;-moz-transition:left .25s ease-out;-ms-transition:left .25s ease-out;-o-transition:left .25s ease-out;transition:left .25s ease-out}.transparent-to-input{pointer-events:none}.opaque-to-input{pointer-events:auto}.clickable{cursor:pointer}.markdown a:hover,.markdown u,a:hover{text-decoration:underline}.modal,.modal-background{top:0;left:0;bottom:0;right:0}.modal-background{pointer-events:auto;background-color:rgba(0,0,0,.5);z-index:1000;position:fixed}.modal{position:absolute;margin:auto;background-color:#2f353c;max-height:100%;max-width:100%;font-family:\'Roboto\',sans-serif;color:#fff}.modal-header{background-color:rgba(0,0,0,.2);border-bottom:1px solid rgba(100,100,100,.6);font-size:15px;line-height:40px;margin:0}.modal-header h1{font-size:15px;color:#fff;margin-left:15px}.modal-content{margin-left:15px;margin-right:15px;margin-bottom:15px;padding-top:15px;overflow:auto}.modal-close-button{position:absolute;right:15px;cursor:pointer;font-size:18px;color:#fff}#ui{z-index:2100}@media print{.full-window{position:initial}}.markdown img{max-width:100%}.markdown svg{max-height:100%}.markdown fieldset,.markdown input,.markdown select,.markdown textarea{font-family:inherit;font-size:1rem;box-sizing:border-box;margin-top:0;margin-bottom:0}.markdown label{vertical-align:middle}.markdown h1,.markdown h2,.markdown h3,.markdown h4,.markdown h5,.markdown h6{font-family:inherit;font-weight:700;line-height:1.25;margin-top:1em;margin-bottom:.5em}.markdown h1{font-size:2rem}.markdown h2{font-size:1.5rem}.markdown h3{font-size:1.25rem}.markdown h4{font-size:1rem}.markdown h5{font-size:.875rem}.markdown h6{font-size:.75rem}.markdown dl,.markdown ol,.markdown p,.markdown ul{margin-top:0;margin-bottom:1rem}.markdown strong{font-weight:700}.markdown em{font-style:italic}.markdown small{font-size:80%}.markdown mark{color:#000;background:#ff0}.markdown s{text-decoration:line-through}.markdown ol{list-style:decimal inside}.markdown ul{list-style:disc inside}.markdown code,.markdown pre,.markdown samp{font-family:monospace;font-size:inherit}.markdown pre{margin-top:0;margin-bottom:1rem;overflow-x:scroll}.markdown a{color:#68adfe;text-decoration:none}.markdown code,.markdown pre{background-color:transparent;border-radius:3px}.markdown hr{border:0;border-bottom-style:solid;border-bottom-width:1px;border-bottom-color:rgba(0,0,0,.125)}.markdown .left-align{text-align:left}.markdown .center{text-align:center}.markdown .right-align{text-align:right}.markdown .justify{text-align:justify}.markdown .truncate{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.markdown ol.upper-roman{list-style-type:upper-roman}.markdown ol.lower-alpha{list-style-type:lower-alpha}.markdown ul.circle{list-style-type:circle}.markdown ul.square{list-style-type:square}.markdown .list-reset{list-style:none;padding-left:0}.floating,.floating-horizontal,.floating-vertical{pointer-events:auto;position:absolute;border-radius:15px;background-color:rgba(47,53,60,.8)}.floating-horizontal{padding-left:5px;padding-right:5px}.floating-vertical{padding-top:5px;padding-bottom:5px}@media print{.floating{display:none}}.distance-legend{pointer-events:auto;position:absolute;border-radius:15px;background-color:rgba(47,53,60,.8);padding-left:5px;padding-right:5px;right:25px;bottom:30px;height:30px;width:125px;border:1px solid rgba(255,255,255,.1);box-sizing:content-box}.distance-legend-label{display:inline-block;font-family:\'Roboto\',sans-serif;font-size:14px;font-weight:lighter;line-height:30px;color:#fff;width:125px;text-align:center}.distance-legend-scale-bar{border-left:1px solid #fff;border-right:1px solid #fff;border-bottom:1px solid #fff;position:absolute;height:10px;top:15px}@media print{.distance-legend{display:none}}@media screen and (max-width:700px),screen and (max-height:420px){.distance-legend{display:none}}.navigation-controls{position:absolute;right:30px;top:210px;width:30px;border:1px solid rgba(255,255,255,.1);font-weigh


// actual code -->

    /*global define,require,self,Cesium*/
    
    define('Cesium/Core/defined', function() { return Cesium["defined"]; });
define('Cesium/Core/defineProperties', function() { return Cesium["defineProperties"]; });
define('Cesium/Core/defaultValue', function() { return Cesium["defaultValue"]; });
define('Cesium/Core/Event', function() { return Cesium["Event"]; });
define('Cesium/Widgets/getElement', function() { return Cesium["getElement"]; });
define('Cesium/Widgets/SvgPathBindingHandler', function() { return Cesium["SvgPathBindingHandler"]; });
define('Cesium/Core/Ray', function() { return Cesium["Ray"]; });
define('Cesium/Core/Cartesian3', function() { return Cesium["Cartesian3"]; });
define('Cesium/Core/Cartographic', function() { return Cesium["Cartographic"]; });
define('Cesium/Core/ReferenceFrame', function() { return Cesium["ReferenceFrame"]; });
define('Cesium/Scene/SceneMode', function() { return Cesium["SceneMode"]; });
define('Cesium/Core/DeveloperError', function() { return Cesium["DeveloperError"]; });
define('Cesium/Core/EllipsoidGeodesic', function() { return Cesium["EllipsoidGeodesic"]; });
define('Cesium/Core/Cartesian2', function() { return Cesium["Cartesian2"]; });
define('Cesium/Core/getTimestamp', function() { return Cesium["getTimestamp"]; });
define('Cesium/Core/EventHelper', function() { return Cesium["EventHelper"]; });
define('Cesium/Core/Math', function() { return Cesium["Math"]; });
define('Cesium/Core/Transforms', function() { return Cesium["Transforms"]; });
define('Cesium/Core/Matrix4', function() { return Cesium["Matrix4"]; });
define('Cesium/Core/BoundingSphere', function() { return Cesium["BoundingSphere"]; });
define('Cesium/Core/HeadingPitchRange', function() { return Cesium["HeadingPitchRange"]; });
define('Cesium/Scene/Camera', function() { return Cesium["Camera"]; });
define('Cesium/Core/Rectangle', function() { return Cesium["Rectangle"]; });
define('Cesium/Core/IntersectionTests', function() { return Cesium["IntersectionTests"]; });
    
    return require('viewerCesiumNavigationMixin');
}));