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Name	Size	Permission
ArrowHelper.js	2.68 KB	-rw-r--r--
AxesHelper.js	1.45 KB	-rw-r--r--
Box3Helper.js	1.26 KB	-rw-r--r--
BoxHelper.js	2.42 KB	-rw-r--r--
CameraHelper.js	8.2 KB	-rw-r--r--
DirectionalLightHelper.js	2.19 KB	-rw-r--r--
GridHelper.js	1.44 KB	-rw-r--r--
HemisphereLightHelper.js	2 KB	-rw-r--r--
PlaneHelper.js	1.7 KB	-rw-r--r--
PointLightHelper.js	1.68 KB	-rw-r--r--
PolarGridHelper.js	2.05 KB	-rw-r--r--
SkeletonHelper.js	2.79 KB	-rw-r--r--
SpotLightHelper.js	1.96 KB	-rw-r--r--

Code Editor : BoxHelper.js

import { Box3 } from '../math/Box3.js';
import { LineSegments } from '../objects/LineSegments.js';
import { LineBasicMaterial } from '../materials/LineBasicMaterial.js';
import { BufferAttribute } from '../core/BufferAttribute.js';
import { BufferGeometry } from '../core/BufferGeometry.js';

const _box = /*@__PURE__*/ new Box3();

class BoxHelper extends LineSegments {

constructor( object, color = 0xffff00 ) {

const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
		const positions = new Float32Array( 8 * 3 );

const geometry = new BufferGeometry();
		geometry.setIndex( new BufferAttribute( indices, 1 ) );
		geometry.setAttribute( 'position', new BufferAttribute( positions, 3 ) );

super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

this.object = object;
		this.type = 'BoxHelper';

this.matrixAutoUpdate = false;

this.update();

}

update( object ) {

if ( object !== undefined ) {

console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );

}

if ( this.object !== undefined ) {

_box.setFromObject( this.object );

}

if ( _box.isEmpty() ) return;

const min = _box.min;
		const max = _box.max;

/*
			5____4
		1/___0/|
		| 6__|_7
		2/___3/

0: max.x, max.y, max.z
		1: min.x, max.y, max.z
		2: min.x, min.y, max.z
		3: max.x, min.y, max.z
		4: max.x, max.y, min.z
		5: min.x, max.y, min.z
		6: min.x, min.y, min.z
		7: max.x, min.y, min.z
		*/

const position = this.geometry.attributes.position;
		const array = position.array;

array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
		array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
		array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
		array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
		array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
		array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
		array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
		array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;

position.needsUpdate = true;

this.geometry.computeBoundingSphere();

}

setFromObject( object ) {

this.object = object;
		this.update();

return this;

}

copy( source, recursive ) {

super.copy( source, recursive );

this.object = source.object;

return this;

}

dispose() {

this.geometry.dispose();
		this.material.dispose();

}

export { BoxHelper };

${this.title}

Code Editor : BoxHelper.js