three.js/src/extras/core/Shape.js

import { Path } from './Path.js';
import { MathUtils } from '../../math/MathUtils.js';

class Shape extends Path {

	constructor( points ) {

		super( points );

		this.uuid = MathUtils.generateUUID();

		this.type = 'Shape';

		this.holes = [];

	}

	getPointsHoles( divisions ) {

		const holesPts = [];

		for ( let i = 0, l = this.holes.length; i < l; i ++ ) {

			holesPts[ i ] = this.holes[ i ].getPoints( divisions );

		}

		return holesPts;

	}

	// get points of shape and holes (keypoints based on segments parameter)

	extractPoints( divisions ) {

		return {

			shape: this.getPoints( divisions ),
			holes: this.getPointsHoles( divisions )

		};

	}

	copy( source ) {

		super.copy( source );

		this.holes = [];

		for ( let i = 0, l = source.holes.length; i < l; i ++ ) {

			const hole = source.holes[ i ];

			this.holes.push( hole.clone() );

		}

		return this;

	}

	toJSON() {

		const data = super.toJSON( );

		data.uuid = this.uuid;
		data.holes = [];

		for ( let i = 0, l = this.holes.length; i < l; i ++ ) {

			const hole = this.holes[ i ];
			data.holes.push( hole.toJSON() );

		}

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.uuid = json.uuid;
		this.holes = [];

		for ( let i = 0, l = json.holes.length; i < l; i ++ ) {

			const hole = json.holes[ i ];
			this.holes.push( new Path().fromJSON( hole ) );

		}

		return this;

	}

}


export { Shape };