56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
/**
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* @author WestLangley / http://github.com/WestLangley
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*/
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import { LineSegments } from '../objects/LineSegments.js';
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import { LineBasicMaterial } from '../materials/LineBasicMaterial.js';
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import { BufferAttribute } from '../core/BufferAttribute.js';
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import { Float32BufferAttribute } from '../core/BufferAttribute.js';
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import { BufferGeometry } from '../core/BufferGeometry.js';
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import { Object3D } from '../core/Object3D.js';
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function Box3Helper( box, hex ) {
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this.type = 'Box3Helper';
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this.box = box;
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var color = ( hex !== undefined ) ? hex : 0xffff00;
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var 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 ] );
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var 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 ];
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var geometry = new BufferGeometry();
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geometry.setIndex( new BufferAttribute( indices, 1 ) );
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geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
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LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
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this.geometry.computeBoundingSphere();
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}
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Box3Helper.prototype = Object.create( LineSegments.prototype );
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Box3Helper.prototype.constructor = Box3Helper;
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Box3Helper.prototype.updateMatrixWorld = function ( force ) {
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var box = this.box;
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if ( box.isEmpty() ) return;
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box.getCenter( this.position );
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box.getSize( this.scale );
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this.scale.multiplyScalar( 0.5 );
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Object3D.prototype.updateMatrixWorld.call( this, force );
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};
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export { Box3Helper };
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