mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-26 07:24:57 +01:00
292 lines
7.8 KiB
HTML
Executable File
292 lines
7.8 KiB
HTML
Executable File
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<!-- based on webgl_geometry_shapes.html and webgl_geometries2.html -->
|
|
<head>
|
|
<title>three.js webgl - geometry - NURBS</title>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
|
|
<style>
|
|
body {
|
|
font-family: Monospace;
|
|
background-color: #f0f0f0;
|
|
margin: 0px;
|
|
overflow: hidden;
|
|
}
|
|
#info {
|
|
position: absolute;
|
|
top: 0px;
|
|
width: 100%;
|
|
padding: 5px;
|
|
text-align:center;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<canvas id="debug" style="position:absolute; left:100px"></canvas>
|
|
|
|
<div id="info"><a href="http://threejs.org" target="_blank">three.js</a> - NURBS curve and surface example</div>
|
|
|
|
<script src="../build/three.min.js"></script>
|
|
<script src="js/curves/NURBSCurve.js"></script>
|
|
<script src="js/curves/NURBSSurface.js"></script>
|
|
<script src="js/curves/NURBSUtils.js"></script>
|
|
<script src="js/libs/stats.min.js"></script>
|
|
|
|
|
|
<script>
|
|
|
|
var container, stats;
|
|
|
|
var camera, scene, renderer;
|
|
var group;
|
|
|
|
var targetRotation = 0;
|
|
var targetRotationOnMouseDown = 0;
|
|
|
|
var mouseX = 0;
|
|
var mouseXOnMouseDown = 0;
|
|
|
|
var windowHalfX = window.innerWidth / 2;
|
|
var windowHalfY = window.innerHeight / 2;
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
container = document.createElement( 'div' );
|
|
document.body.appendChild( container );
|
|
|
|
var info = document.createElement( 'div' );
|
|
info.style.position = 'absolute';
|
|
info.style.top = '30px';
|
|
info.style.width = '100%';
|
|
info.style.textAlign = 'center';
|
|
info.innerHTML = 'Drag to spin';
|
|
container.appendChild( info );
|
|
|
|
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 2000 );
|
|
camera.position.set( 0, 150, 750 );
|
|
|
|
scene = new THREE.Scene();
|
|
scene.add( new THREE.AmbientLight( 0x808080 ) );
|
|
|
|
var light = new THREE.DirectionalLight( 0xffffff, 1 );
|
|
light.position.set( 1, 1, 1 );
|
|
scene.add( light );
|
|
|
|
group = new THREE.Group();
|
|
group.position.y = 50;
|
|
scene.add( group );
|
|
|
|
// NURBS curve
|
|
|
|
var nurbsControlPoints = [];
|
|
var nurbsKnots = [];
|
|
var nurbsDegree = 3;
|
|
|
|
for ( var i = 0; i <= nurbsDegree; i ++ ) {
|
|
|
|
nurbsKnots.push( 0 );
|
|
|
|
}
|
|
|
|
for ( var i = 0, j = 20; i < j; i ++ ) {
|
|
|
|
nurbsControlPoints.push(
|
|
new THREE.Vector4(
|
|
Math.random() * 400 - 200,
|
|
Math.random() * 400,
|
|
Math.random() * 400 - 200,
|
|
1 // weight of control point: higher means stronger attraction
|
|
)
|
|
);
|
|
|
|
var knot = ( i + 1 ) / ( j - nurbsDegree );
|
|
nurbsKnots.push( THREE.Math.clamp( knot, 0, 1 ) );
|
|
|
|
}
|
|
|
|
var nurbsCurve = new THREE.NURBSCurve(nurbsDegree, nurbsKnots, nurbsControlPoints);
|
|
|
|
var nurbsGeometry = new THREE.Geometry();
|
|
nurbsGeometry.vertices = nurbsCurve.getPoints(200);
|
|
var nurbsMaterial = new THREE.LineBasicMaterial( { linewidth: 10, color: 0x333333, transparent: true } );
|
|
|
|
var nurbsLine = new THREE.Line( nurbsGeometry, nurbsMaterial );
|
|
nurbsLine.position.set( 200, -100, 0 );
|
|
group.add( nurbsLine );
|
|
|
|
var nurbsControlPointsGeometry = new THREE.Geometry();
|
|
nurbsControlPointsGeometry.vertices = nurbsCurve.controlPoints;
|
|
var nurbsControlPointsMaterial = new THREE.LineBasicMaterial( { linewidth: 2, color: 0x333333, opacity: 0.25, transparent: true } );
|
|
var nurbsControlPointsLine = new THREE.Line( nurbsControlPointsGeometry, nurbsControlPointsMaterial );
|
|
nurbsControlPointsLine.position.copy( nurbsLine.position );
|
|
group.add( nurbsControlPointsLine );
|
|
|
|
// NURBS surface
|
|
|
|
var nsControlPoints = [
|
|
[
|
|
new THREE.Vector4 ( -200, -200, 100, 1 ),
|
|
new THREE.Vector4 ( -200, -100, -200, 1 ),
|
|
new THREE.Vector4 ( -200, 100, 250, 1 ),
|
|
new THREE.Vector4 ( -200, 200, -100, 1 )
|
|
],
|
|
[
|
|
new THREE.Vector4 ( 0, -200, 0, 1 ),
|
|
new THREE.Vector4 ( 0, -100, -100, 5 ),
|
|
new THREE.Vector4 ( 0, 100, 150, 5 ),
|
|
new THREE.Vector4 ( 0, 200, 0, 1 )
|
|
],
|
|
[
|
|
new THREE.Vector4 ( 200, -200, -100, 1 ),
|
|
new THREE.Vector4 ( 200, -100, 200, 1 ),
|
|
new THREE.Vector4 ( 200, 100, -250, 1 ),
|
|
new THREE.Vector4 ( 200, 200, 100, 1 )
|
|
]
|
|
];
|
|
var degree1 = 2;
|
|
var degree2 = 3;
|
|
var knots1 = [0, 0, 0, 1, 1, 1];
|
|
var knots2 = [0, 0, 0, 0, 1, 1, 1, 1];
|
|
var nurbsSurface = new THREE.NURBSSurface(degree1, degree2, knots1, knots2, nsControlPoints);
|
|
|
|
var map = THREE.ImageUtils.loadTexture( 'textures/UV_Grid_Sm.jpg' );
|
|
map.wrapS = map.wrapT = THREE.RepeatWrapping;
|
|
map.anisotropy = 16;
|
|
|
|
getSurfacePoint = function(u, v) {
|
|
return nurbsSurface.getPoint(u, v);
|
|
};
|
|
|
|
var geometry = new THREE.ParametricGeometry( getSurfacePoint, 20, 20 );
|
|
var material = new THREE.MeshLambertMaterial( { map: map, side: THREE.DoubleSide } );
|
|
var object = new THREE.Mesh( geometry, material );
|
|
object.position.set( - 200, 100, 0 );
|
|
object.scale.multiplyScalar( 1 );
|
|
group.add( object );
|
|
|
|
//
|
|
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
|
renderer.setClearColor( 0xf0f0f0 );
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
container.appendChild( renderer.domElement );
|
|
|
|
stats = new Stats();
|
|
stats.domElement.style.position = 'absolute';
|
|
stats.domElement.style.top = '0px';
|
|
container.appendChild( stats.domElement );
|
|
|
|
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
|
|
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
|
|
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
|
|
|
|
//
|
|
|
|
window.addEventListener( 'resize', onWindowResize, false );
|
|
|
|
}
|
|
|
|
function onWindowResize() {
|
|
|
|
windowHalfX = window.innerWidth / 2;
|
|
windowHalfY = window.innerHeight / 2;
|
|
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
|
camera.updateProjectionMatrix();
|
|
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function onDocumentMouseDown( event ) {
|
|
|
|
event.preventDefault();
|
|
|
|
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
|
|
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
|
|
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
|
|
|
|
mouseXOnMouseDown = event.clientX - windowHalfX;
|
|
targetRotationOnMouseDown = targetRotation;
|
|
|
|
}
|
|
|
|
function onDocumentMouseMove( event ) {
|
|
|
|
mouseX = event.clientX - windowHalfX;
|
|
|
|
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
|
|
|
|
}
|
|
|
|
function onDocumentMouseUp( event ) {
|
|
|
|
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
|
|
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
|
|
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
|
|
|
|
}
|
|
|
|
function onDocumentMouseOut( event ) {
|
|
|
|
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
|
|
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
|
|
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
|
|
|
|
}
|
|
|
|
function onDocumentTouchStart( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
|
|
targetRotationOnMouseDown = targetRotation;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onDocumentTouchMove( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseX = event.touches[ 0 ].pageX - windowHalfX;
|
|
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
function render() {
|
|
|
|
group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|