three.js/src/geometries/ConeGeometry.js

import { CylinderGeometry } from './CylinderGeometry.js';

class ConeGeometry extends CylinderGeometry {

	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';

		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	static fromJSON( data ) {

		return new ConeGeometry( data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

	}

}

export { ConeGeometry };