three
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JavaScript 3D library
67 lines (53 loc) • 1.59 kB
JavaScript
import { PolyhedronGeometry } from './PolyhedronGeometry.js';
/**
* A geometry class for representing an tetrahedron.
*
* ```js
* const geometry = new THREE.TetrahedronGeometry();
* const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
* const tetrahedron = new THREE.Mesh( geometry, material );
* scene.add( tetrahedron );
* ```
*
* @augments PolyhedronGeometry
*/
class TetrahedronGeometry extends PolyhedronGeometry {
/**
* Constructs a new tetrahedron geometry.
*
* @param {number} [radius=1] - Radius of the tetrahedron.
* @param {number} [detail=0] - Setting this to a value greater than `0` adds vertices making it no longer a tetrahedron.
*/
constructor( radius = 1, detail = 0 ) {
const vertices = [
1, 1, 1, - 1, - 1, 1, - 1, 1, - 1, 1, - 1, - 1
];
const indices = [
2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1
];
super( vertices, indices, radius, detail );
this.type = 'TetrahedronGeometry';
/**
* Holds the constructor parameters that have been
* used to generate the geometry. Any modification
* after instantiation does not change the geometry.
*
* @type {Object}
*/
this.parameters = {
radius: radius,
detail: detail
};
}
/**
* Factory method for creating an instance of this class from the given
* JSON object.
*
* @param {Object} data - A JSON object representing the serialized geometry.
* @return {TetrahedronGeometry} A new instance.
*/
static fromJSON( data ) {
return new TetrahedronGeometry( data.radius, data.detail );
}
}
export { TetrahedronGeometry };