<p>
Doesn't work well with floating point numbers.
</p>
CSS
/* fix mouse click offset errors when doing drags */
body {
margin: 0;
}
JavaScript
import * as THREE from "https://unpkg.com/[email protected]/build/three.module.js";
import { OrbitControls } from "https://unpkg.com/[email protected]/examples/jsm/controls/OrbitControls.js";
class Main {
constructor(){
this.objects = [];
this.scene = new THREE.Scene();
var width = window.innerWidth;
var height = window.innerHeight * .75;
this.camera = new THREE.PerspectiveCamera(
35, width/height, 0.1, 10000
);
this.renderer = new THREE.WebGLRenderer();
this.renderer.setSize( width, height );
this.renderer.setClearColor( 0xcccccc, 1 );
// controls should set 2nd param or mouse move will be all over the main dom element
// null on 2nd param, threejs will use the parent as the mouse click and prevent default
this.controls = new OrbitControls(this.camera, this.renderer.domElement);
// will turn off zooming while panning with right mouse click, false by default
this.controls.screenSpacePanning = true;
document.body.appendChild( this.renderer.domElement );
this.scene.add(this.camera);
this.setToFullOrbit(this.controls);
this.camera.position.copy(new THREE.Vector3(100,100,100));
// fix first frame render issue going invisible
this.camera.lookAt(new THREE.Vector3(0,0,0));
var axisHelper = new THREE.AxisHelper();
//his.scene.add(axisHelper);
var grid = new THREE.GridHelper(144,12);
grid.rotateX(Math.PI / 2);
this.scene.add(grid);
this.createScene();
}
// playground
createScene(){
var p1 = new THREE.Vector3();
var p2 = new THREE.Vector3(0, 10);
var p3 = new THREE.Vector3(10, 10);
var p4 = new THREE.Vector3(10, 0);
var arr = [p1, p2, p3, p4];
var bb = new THREE.Box3();
bb.setFromPoints(arr);
const box = new THREE.Box3Helper(bb, 0xffff00 );
this.scene.add(box);
var interval = setInterval(() => {
arr.forEach(v => {
var center = new THREE.Vector3();
box.box.getCenter(center);
...
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