A class for generating plane geometries.
const geometry = new THREE.PlaneGeometry( 1, 1 );
		const material = new THREE.MeshBasicMaterial( {color: 0xffff00, side: THREE.DoubleSide} );
		const plane = new THREE.Mesh( geometry, material );
		scene.add( plane );
		
		
		width — Width along the X axis. Default is 1.
		height — Height along the Y axis. Default is 1.
		widthSegments — Optional. Default is 1. 
		heightSegments — Optional. Default is 1.
		
See the base [page:BufferGeometry] class for common properties.
An object with a property for each of the constructor parameters. Any modification after instantiation does not change the geometry.
See the base [page:BufferGeometry] class for common methods.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]