59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
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/*
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* Copyright 2013, kaj dijkstra ,
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* Author, Kaj Dijkstra.
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* All rights reserved.
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*
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*/
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import {matrix3, vector3} from './math.js';
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/**
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* Boundingbox
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**/
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class boundingBox {
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maxExtent = [0, 0, 0];
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minExtent = [0, 0, 0];
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intersectionVector;
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/**
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* make boundingbox as big as point cloud
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* @param {(array)} points
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**/
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fitBoxToPoints_( points, rotationMatrix ) {
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var minVector;
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for (var index = 0; index < 3; ++index) {
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this.maxExtent[index] = this.minExtent[index] = points[index];
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for (var i = 1; i < points.length / 3; ++i) {
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var point = [points[i * 3], points[(i * 3) + 1], points[(i * 3) + 2]] ;
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if(rotationMatrix){
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var translation = rotationMatrix[3];
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if(translation) {
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point = vector3.add([translation[0], translation[1], translation[2]], point);
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}
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point = matrix3.transformPoint(rotationMatrix, point);
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}
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//if(this.minExtent[index] > point[i] && index == 1)
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//var minVector = point;
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this.minExtent[index] = Math.min(this.minExtent[index], point[index]);
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this.maxExtent[index] = Math.max(this.maxExtent[index], point[index]);
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}
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}
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this.intersectionVector = minVector;
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this.valid = true;
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}
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}
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export {boundingBox as default};
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