transformcoordinates

by Alan Lin

HTML

<div id="info">demo page</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js">
    
</script>

CSS

#info {
    position: absolute;
    top: 0px;
    width: 100%;
    padding: 10px;
    text-align: center;
    color: #ffff00
}
body {
    overflow: hidden;
}

JavaScript

var scene, renderer, camera;
var controls;
var pos 	 = new THREE.Vector3( 0, 0, 0);
var newpos = new THREE.Vector3( 2, 0, 2);
var newx 	 = new THREE.Vector3( 1, 0, 0);
var newy 	 = new THREE.Vector3( 0, 1, 0); 


init();
animate();
         

function init() {
  	scene = new THREE.Scene();
    
    camera = new THREE.PerspectiveCamera(20, window.innerWidth / window.innerHeight, 1, 1000);
    camera.position.set(0,10,20);
    scene.add(camera);

		light = new THREE.PointLight(0xffffff);
  	light.position.set(0, 300, 0);
  	scene.add(light);
    
    var gridXZ = new THREE.GridHelper(10, 1);
    gridXZ.setColors(new THREE.Color(0x000000), new THREE.Color(0xffffff));
    scene.add(gridXZ);
		
    renderer = new THREE.WebGLRenderer();
    renderer.setSize(window.innerWidth, window.innerHeight);
    renderer.setClearColor(0x888888);

  ////////////////////////////////////////////////////////////
   	var ball = makeBall (0.5, 1);
    ball.position.copy(pos);
    scene.add(ball);
    
    var newball = makeBall (0.5, 0);
    newball.position.copy(newpos);
    scene.add(newball);
    
  	
    var newz = new THREE.Vector3();
    newz.crossVectors (newx, newy);
    
		var trans = transformcoordinates(pos, newpos, newx, newy, newz);
    console.log(trans);

    controls = new THREE.OrbitControls(camera, renderer.domElement);
    document.body.appendChild(renderer.domElement);
    window.addEventListener('resize', onWindowResize, false); 
}
function onWindowResize() {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
}

function animate() {
  controls.update();

  requestAnimationFrame(animate);
  renderer.render(scene, camera);
}

function makeBall (R, end) {
  var ball = new THREE.Mesh(new THREE.SphereGeometry(R,20,20), new THREE.MeshNormalMaterial());
	if (end === 0)
  	ball.material = new THREE.MeshLambertMaterial ({color:0xff0000});
	if (end === 1)
  	ball.material =...