| import { LineSegments } from '../objects/LineSegments.js'; |
| import { LineBasicMaterial } from '../materials/LineBasicMaterial.js'; |
| import { BufferAttribute, Float32BufferAttribute } from '../core/BufferAttribute.js'; |
| import { BufferGeometry } from '../core/BufferGeometry.js'; |
|
|
| class Box3Helper extends LineSegments { |
|
|
| constructor( box, 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 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ]; |
|
|
| const geometry = new BufferGeometry(); |
|
|
| geometry.setIndex( new BufferAttribute( indices, 1 ) ); |
|
|
| geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); |
|
|
| super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); |
|
|
| this.box = box; |
|
|
| this.type = 'Box3Helper'; |
|
|
| this.geometry.computeBoundingSphere(); |
|
|
| } |
|
|
| updateMatrixWorld( force ) { |
|
|
| const box = this.box; |
|
|
| if ( box.isEmpty() ) return; |
|
|
| box.getCenter( this.position ); |
|
|
| box.getSize( this.scale ); |
|
|
| this.scale.multiplyScalar( 0.5 ); |
|
|
| super.updateMatrixWorld( force ); |
|
|
| } |
|
|
| dispose() { |
|
|
| this.geometry.dispose(); |
| this.material.dispose(); |
|
|
| } |
|
|
| } |
|
|
| export { Box3Helper }; |
|
|
