AMI - Lesson 01

Visualize 3D. author(s): Nicolas Rannou (github)

by nicolasrannou

HTML

<div id="my-gui-container"></div>
<div id="container"></div>

<!-- THREEJS -->
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r83/three.min.js"></script>


<!-- AMI CDN -->
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/ami.js//0.0.15/ami.min.js"></script>
        
      

<!-- ANALYTICS -->
<script>
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-39303022-3', 'auto');
  var page = '/ami/lessons/01';
  ga('send', 'pageview', page);

</script>

CSS

body{
  font-family: source-code-pro, sans-serif;
  color:#F9F9F9;
  background-color: #212121
}

#container {
  background-color: #000;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  position: absolute;
  width: 100%;
  height: 100%;
  overflow:hidden;
}

#my-gui-container {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index:1;
}

JavaScript

/* globals dat, AMI*/

// VJS classes we will be using in this lesson
var LoadersVolume = AMI.default.Loaders.Volume;
var ControlsTrackball = AMI.default.Controls.Trackball;
var HelpersStack = AMI.default.Helpers.Stack;
var HelpersSlice = AMI.default.Helpers.Slice;

var stackHelper = null;
var stacks = [];

// Setup renderer
var container = document.getElementById('container');
var renderer = new THREE.WebGLRenderer({
    antialias: true,
  });
renderer.setSize(container.offsetWidth, container.offsetHeight);
renderer.setClearColor(0x353535, 1);
renderer.setPixelRatio(window.devicePixelRatio);
container.appendChild(renderer.domElement);

// Setup scene
var scene = new THREE.Scene();

// Setup camera
var camera = new THREE.PerspectiveCamera(
  45, container.offsetWidth / container.offsetHeight, 0.01, 10000000);
camera.position.x = 150;
camera.position.y = 150;
camera.position.z = 100;

// Setup controls
var controls = new ControlsTrackball(camera, container);

/**
 * Handle window resize
 */
function onWindowResize() {
  camera.aspect = container.offsetWidth / container.offsetHeight;
  camera.updateProjectionMatrix();

  renderer.setSize(container.offsetWidth, container.offsetHeight);
}

window.addEventListener('resize', onWindowResize, false);

/**
 * Start animation loop
 */
function animate() {
    controls.update();
    renderer.render(scene, camera);

    // request new frame
    requestAnimationFrame(function() {
      animate();
    });
  }
animate();

// Setup loader
var loader = new LoadersVolume(container);

var t2 = [
    '36444280', '36444294',
];
var files = t2.map(function(v) {
    return 'https://cdn.rawgit.com/FNNDSC/data/master/dicom/adi_brain/' + v;
});

loader.load(files)
.then(function() {
    // merge files into clean series/stack/frame structure
    var series = loader.data;
    series[0].stack[0].prepare()
    series[0].stack[0].pack();
    series[1].stack[0].prepare()
    series[1].stack[0].pack();
    stacks.push(series[0].stack[0]);
   ...