kopia lustrzana https://github.com/robhawkes/vizicities
82 wiersze
1.9 KiB
JavaScript
Executable File
82 wiersze
1.9 KiB
JavaScript
Executable File
// jscs:disable
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/* eslint-disable */
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import * as THREE from 'three';
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/**
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* @author mrdoob / http://mrdoob.com/
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*/
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BoxHelper = function ( object ) {
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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 = new Float32Array( 8 * 3 );
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var geometry = new THREE.BufferGeometry();
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geometry.setIndex( new THREE.BufferAttribute( indices, 1 ) );
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geometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );
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THREE.LineSegments.call( this, geometry, new THREE.LineBasicMaterial( { linewidth: 2, color: 0xff0000 } ) );
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if ( object !== undefined ) {
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this.update( object );
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}
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};
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BoxHelper.prototype = Object.create( THREE.LineSegments.prototype );
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BoxHelper.prototype.constructor = BoxHelper;
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BoxHelper.prototype.update = ( function () {
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var box = new THREE.Box3();
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return function ( object ) {
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box.setFromObject( object );
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if ( box.isEmpty() ) return;
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var min = box.min;
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var max = box.max;
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/*
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5____4
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1/___0/|
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| 6__|_7
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2/___3/
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0: max.x, max.y, max.z
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1: min.x, max.y, max.z
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2: min.x, min.y, max.z
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3: max.x, min.y, max.z
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4: max.x, max.y, min.z
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5: min.x, max.y, min.z
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6: min.x, min.y, min.z
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7: max.x, min.y, min.z
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*/
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var position = this.geometry.attributes.position;
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var array = position.array;
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array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
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array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
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array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
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array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
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array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
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array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
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array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
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array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;
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position.needsUpdate = true;
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this.geometry.computeBoundingSphere();
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};
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} )();
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export default BoxHelper;
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