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webgl_loader_nrrd.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - loaders - NRRD loader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> -
NRRD format loader test
</div>
<div id="inset"></div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/libs/stats.module.js';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
import { TrackballControls } from 'three/addons/controls/TrackballControls.js';
import { NRRDLoader } from 'three/addons/loaders/NRRDLoader.js';
import { VTKLoader } from 'three/addons/loaders/VTKLoader.js';
let container,
stats,
camera,
controls,
scene,
renderer;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.01, 1e10 );
camera.position.z = 300;
scene = new THREE.Scene();
scene.add( camera );
// light
const hemiLight = new THREE.HemisphereLight( 0xffffff, 0x000000, 1 );
scene.add( hemiLight );
const dirLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
dirLight.position.set( 200, 200, 200 );
scene.add( dirLight );
const loader = new NRRDLoader();
loader.load( 'models/nrrd/I.nrrd', function ( volume ) {
//box helper to see the extend of the volume
const geometry = new THREE.BoxGeometry( volume.xLength, volume.yLength, volume.zLength );
const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
const cube = new THREE.Mesh( geometry, material );
cube.visible = false;
const box = new THREE.BoxHelper( cube );
scene.add( box );
box.applyMatrix4( volume.matrix );
scene.add( cube );
//z plane
const sliceZ = volume.extractSlice( 'z', Math.floor( volume.RASDimensions[ 2 ] / 4 ) );
scene.add( sliceZ.mesh );
//y plane
const sliceY = volume.extractSlice( 'y', Math.floor( volume.RASDimensions[ 1 ] / 2 ) );
scene.add( sliceY.mesh );
//x plane
const sliceX = volume.extractSlice( 'x', Math.floor( volume.RASDimensions[ 0 ] / 2 ) );
scene.add( sliceX.mesh );
gui.add( sliceX, 'index', 0, volume.RASDimensions[ 0 ], 1 ).name( 'indexX' ).onChange( function () {
sliceX.repaint.call( sliceX );
} );
gui.add( sliceY, 'index', 0, volume.RASDimensions[ 1 ], 1 ).name( 'indexY' ).onChange( function () {
sliceY.repaint.call( sliceY );
} );
gui.add( sliceZ, 'index', 0, volume.RASDimensions[ 2 ], 1 ).name( 'indexZ' ).onChange( function () {
sliceZ.repaint.call( sliceZ );
} );
gui.add( volume, 'lowerThreshold', volume.min, volume.max, 1 ).name( 'Lower Threshold' ).onChange( function () {
volume.repaintAllSlices();
} );
gui.add( volume, 'upperThreshold', volume.min, volume.max, 1 ).name( 'Upper Threshold' ).onChange( function () {
volume.repaintAllSlices();
} );
gui.add( volume, 'windowLow', volume.min, volume.max, 1 ).name( 'Window Low' ).onChange( function () {
volume.repaintAllSlices();
} );
gui.add( volume, 'windowHigh', volume.min, volume.max, 1 ).name( 'Window High' ).onChange( function () {
volume.repaintAllSlices();
} );
} );
const vtkmaterial = new THREE.MeshLambertMaterial( { wireframe: false, side: THREE.DoubleSide, color: 0xff0000 } );
const vtkloader = new VTKLoader();
vtkloader.load( 'models/vtk/liver.vtk', function ( geometry ) {
geometry.computeVertexNormals();
const mesh = new THREE.Mesh( geometry, vtkmaterial );
scene.add( mesh );
const visibilityControl = {
visible: true
};
gui.add( visibilityControl, 'visible' ).name( 'Model Visible' ).onChange( function () {
mesh.visible = visibilityControl.visible;
renderer.render( scene, camera );
} );
} );
// renderer
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container = document.createElement( 'div' );
document.body.appendChild( container );
container.appendChild( renderer.domElement );
controls = new TrackballControls( camera, renderer.domElement );
controls.minDistance = 100;
controls.maxDistance = 500;
controls.rotateSpeed = 5.0;
controls.zoomSpeed = 5;
controls.panSpeed = 2;
stats = new Stats();
container.appendChild( stats.dom );
const gui = new GUI();
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
}
function animate() {
requestAnimationFrame( animate );
controls.update();
renderer.render( scene, camera );
stats.update();
}
</script>
</body>
</html>