three
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JavaScript 3D library
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JavaScript
import { CylinderGeometry } from './CylinderGeometry.js';
/**
* A geometry class for representing a cone.
*
* ```js
* const geometry = new THREE.ConeGeometry( 5, 20, 32 );
* const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
* const cone = new THREE.Mesh(geometry, material );
* scene.add( cone );
* ```
*
* @augments CylinderGeometry
*/
class ConeGeometry extends CylinderGeometry {
/**
* Constructs a new cone geometry.
*
* @param {number} [radius=1] - Radius of the cone base.
* @param {number} [height=1] - Height of the cone.
* @param {number} [radialSegments=32] - Number of segmented faces around the circumference of the cone.
* @param {number} [heightSegments=1] - Number of rows of faces along the height of the cone.
* @param {boolean} [openEnded=false] - Whether the base of the cone is open or capped.
* @param {number} [thetaStart=0] - Start angle for first segment, in radians.
* @param {number} [thetaLength=Math.PI*2] - The central angle, often called theta, of the circular sector, in radians.
* The default value results in a complete cone.
*/
constructor( radius = 1, height = 1, radialSegments = 32, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) {
super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
this.type = 'ConeGeometry';
/**
* 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,
height: height,
radialSegments: radialSegments,
heightSegments: heightSegments,
openEnded: openEnded,
thetaStart: thetaStart,
thetaLength: thetaLength
};
}
/**
* 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 {ConeGeometry} A new instance.
*/
static fromJSON( data ) {
return new ConeGeometry( data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );
}
}
export { ConeGeometry };