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Test.html
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<html>
<head>
<title>My first Three.js app</title>
<style>
body { margin: 0; }
canvas { width: 100%; height: 100% }
</style>
</head>
<body>
<canvas id="myCanvas" width="100%" height="100%"
style="position: absolute; left: 0; top: 0; z-index: 0;"></canvas>
<canvas id="layer2" width="100%" height="100%"
style="position: absolute; left: 0; top: 0; z-index: -1;"></canvas>
<script src="three.min.js"></script>
<script type="text/javascript" src="dat.gui.min.js"></script>
<script>
var calculateUV = function(geometry) {
geometry.faceVertexUvs[0] = [];
for(i = 0; i < geometry.faces.length; i++){
var vertex1 = geometry.vertices[geometry.faces[i].a];
var unitVector1 = new THREE.Vector3();
unitVector1.subVectors(geometry.boundingSphere.center, vertex1);
unitVector1.normalize();
var vertex2 = geometry.vertices[geometry.faces[i].b];
var unitVector2 = new THREE.Vector3();
unitVector2.subVectors(geometry.boundingSphere.center, vertex2);
unitVector2.normalize();
var vertex3 = geometry.vertices[geometry.faces[i].c];
var unitVector3 = new THREE.Vector3();
unitVector3.subVectors(geometry.boundingSphere.center, vertex3);
unitVector3.normalize();
if(vertex1.y < 0 || vertex2.y < 0 || vertex3.y <0){
continue;
}
var u1 = 0.5 + Math.atan2(unitVector1.z, unitVector1.x)/(2*Math.PI);
var v1 = 0.5 + Math.asin(unitVector1.y)/(Math.PI);
var u2 = 0.5 + Math.atan2(unitVector2.z, unitVector2.x)/(2*Math.PI);
var v2 = 0.5 + Math.asin(unitVector2.y)/(Math.PI);
var u3 = 0.5 + Math.atan2(unitVector3.z, unitVector3.x)/(2*Math.PI);
var v3 = 0.5 + Math.asin(unitVector3.y)/(Math.PI);
geometry.faceVertexUvs[0].push([
new THREE.Vector2(u1,v1),
new THREE.Vector2(u2,v2),
new THREE.Vector2(u3,v3)
]);
}
};
var createClippingPlane = function(){
var raycaster = new THREE.Raycaster();
var width = 0.2;
var height = 0.3;
raycaster.setFromCamera(new THREE.Vector2(-width,-height),camera);
var intersects = raycaster.intersectObjects( scene.children );
v1 = intersects[0].point;
// v1.z += 1;
raycaster.setFromCamera(new THREE.Vector2(-width,height),camera);
intersects = raycaster.intersectObjects( scene.children );
v2 = intersects[0].point;
// v2.z += 1;
raycaster.setFromCamera(new THREE.Vector2(width,height),camera);
intersects = raycaster.intersectObjects( scene.children );
v3 = intersects[0].point;
// v3.z += 1;
raycaster.setFromCamera(new THREE.Vector2(width,-height),camera);
intersects = raycaster.intersectObjects( scene.children );
v4 = intersects[0].point;
// v4.z += 1;
var curve = new THREE.ClosedSplineCurve3([v1,v2,v3,v4]);
var curveGeometry = new THREE.TubeGeometry(curve,64,0.5);
//curveGeometry.vertices = curve.getPoints(50);
var curveMaterial = new THREE.MeshBasicMaterial({ color : 0xff0000 });
//curveMaterial.linewidth = 10;
return new THREE.Mesh(curveGeometry,curveMaterial);
// var sphere;
// var loader = new THREE.JSONLoader(false);
// loader.load('HalfSphere.js', function(geometry, material){
//var texture = THREE.ImageUtils.loadTexture('panorama.jpg');
//texture.minFilter = THREE.NearestFilter;
//material.side = THREE.DoubleSide;
//material.map = texture;
// sphere = new THREE.Mesh( geometry, material );
// scene.add(sphere);
// },'panorama.jpg');
};
var createViewFinder = function(){
var curve1 = new THREE.EllipseCurve(
0,0,
sphereRadius-0.5,sphereRadius-0.5,
0,Math.PI*2,
false
);
var curve2 = new THREE.EllipseCurve(
0,0,
sphereRadius-0.5,sphereRadius-0.5,
0,Math.PI*2,
false
);
//var circlePath = new THREE.Path(curve.getPoints(50));
var circlePoints1 = curve1.getPoints(50);
var circlePoints2 = curve2.getPoints(50);
var q1 = new THREE.Quaternion();
/*
var shape = new THREE.Shape();
shape.moveTo(circlePoints[0].x,circlePoints[0].y);
for (i = 1; i<circlePoints.length; i++){
shape.lineTo(circlePoints[i].x,circlePoints[i].y);
}
*/
var circlePath3D1 = new Array(circlePoints1.length);
for(i = 0; i< circlePath3D1.length; i++){
circlePath3D1[i] = new THREE.Vector3(circlePoints1[i].x,circlePoints1[i].y,0);
}
var circlePath3D2 = new Array(circlePoints2.length);
for(i = 0; i< circlePath3D2.length; i++){
circlePath3D2[i] = new THREE.Vector3(circlePoints2[i].x,circlePoints2[i].y,0);
}
var anchorMaterial = new THREE.MeshBasicMaterial({color : 0xff0000});
anchor1 = new THREE.Mesh(new THREE.SphereGeometry(0.3,32,32),anchorMaterial);
anchor1.position.x = circlePath3D1[0].x;
anchor1.position.y = circlePath3D1[0].y;
anchor2 = new THREE.Mesh(new THREE.SphereGeometry(0.3,32,32),anchorMaterial);
anchor2.position.x = circlePath3D1[circlePath3D1.length-1].x;
anchor2.position.y = circlePath3D1[circlePath3D1.length-1].y;
anchor3 = new THREE.Mesh(new THREE.SphereGeometry(0.3,32,32),anchorMaterial);
anchor3.position.x = circlePath3D1[0].x;
anchor3.position.y = circlePath3D1[0].y;
anchor4 = new THREE.Mesh(new THREE.SphereGeometry(0.3,32,32),anchorMaterial);
anchor4.position.x = circlePath3D1[circlePath3D1.length-1].x;
anchor4.position.y = circlePath3D1[circlePath3D1.length-1].y;
var spline1 = new THREE.SplineCurve3(circlePath3D1);
var spline2 = new THREE.SplineCurve3(circlePath3D2);
var circleGeometry1 = new THREE.TubeGeometry(spline1,32,0.1,4);
var circleGeometry2 = new THREE.TubeGeometry(spline2,32,0.1,4);
var circleMaterial = new THREE.MeshBasicMaterial();
circleMaterial.side = THREE.DoubleSide;
//circleMaterial.wireframe = true;
circle1 = new THREE.Mesh(circleGeometry1,circleMaterial);
circle1.useQuaternion = true;
obj = new THREE.Object3D();
camera.add(obj);
circle1.add(anchor1);
circle1.add(anchor2);
q1.setFromAxisAngle( new THREE.Vector3(0,1,0).normalize(), Math.PI/2);
circle1.quaternion.multiply(q1);
q1.setFromAxisAngle( new THREE.Vector3(1,0,0).normalize(), Math.PI/2);
circle1.quaternion.multiply(q1);
q1.setFromAxisAngle( new THREE.Vector3(0,1,0).normalize(), -Math.PI/10);
circle1.quaternion.multiply(q1);
//circle1.rotation.z = Math.PI/10;
//circle1.rotation.y = Math.PI/2;
obj.add(circle1);
circle2 = new THREE.Mesh(circleGeometry1,circleMaterial);
q1.setFromAxisAngle( new THREE.Vector3(0,1,0).normalize(), Math.PI/2);
circle2.quaternion.multiply(q1);
q1.setFromAxisAngle( new THREE.Vector3(1,0,0).normalize(), Math.PI/2);
circle2.quaternion.multiply(q1);
q1.setFromAxisAngle( new THREE.Vector3(0,1,0).normalize(), Math.PI/10);
circle2.quaternion.multiply(q1);
circle2.add(anchor3);
circle2.add(anchor4);
obj.add(circle2);
var circle3 = new THREE.Mesh(circleGeometry2,circleMaterial);
q1.setFromAxisAngle( new THREE.Vector3(0,1,0).normalize(), Math.PI/3);
circle3.quaternion.multiply(q1);
obj.add(circle3);
var circle4 = new THREE.Mesh(circleGeometry2,circleMaterial);
q1.setFromAxisAngle( new THREE.Vector3(0,1,0).normalize(), Math.PI/1.5);
circle4.quaternion.multiply(q1);
obj.add(circle4);
};
function onMouseDown(event){
userMouseDown = true;
mouseDownPosition = new THREE.Vector2(event.clientX, event.clientY);
oldMouseDragVector = mouseDragVector;
var mouseVectorNDC = new THREE.Vector2(mouseDownPosition.x/window.innerWidth*2-1,
(mouseDownPosition.y/window.innerHeight*2-1)*-1);
raycaster.setFromCamera(mouseVectorNDC,camera);
for (var index = 0; index < viewFinder.children.length; index++) {
var intersects = raycaster.intersectObjects(viewFinder.children[index].children, true);
if(intersects.length > 0){
hitAnchor = true;
}
}
}
function onMouseUp(event){
userMouseDown = false;
hitAnchor = false;
//sphere.rotation.x = 0;
//sphere.rotation.y = 0;
}
function onMouseMove(event){
if(userMouseDown){
mouseDragVector = new THREE.Vector2(event.clientX, event.clientY);
mouseDragVector.subVectors(mouseDownPosition,mouseDragVector);
mouseDragVector.y *=-1;
//mouseDragVector.add(target);
mouseDragVector.multiplyScalar(0.2);
mouseDragVector.add(oldMouseDragVector);
//mouseDragVector.normalize();
if(hitAnchor){
var mouseDirection = new THREE.Vector2(event.clientX, event.clientY);
mouseDirection.subVectors(mouseDirection,lastMousePosition);
mouseDirection.normalize();
/*
for (var i = 0; i < camera.children.length; i++) {
camera.children[i].scale.x += -mouseDirection.x*0.03;
camera.children[i].scale.y += -mouseDirection.y*0.03;
}
*/
viewFinderLength+=-mouseDirection.x*2;
viewFinderScale+=-mouseDirection.y*0.3;
viewFinderHeight+=-mouseDirection.y*0.3;
newViewFinder(viewFinderHeight,viewFinderHeight-viewFinderScale,Math.abs(radius1-radius2)*0.5);
//createViewFinder();
}
}
lastMousePosition = new THREE.Vector2(event.clientX, event.clientY);
}
function onWheel(event){
// WebKit
if ( event.wheelDeltaY ) {
camera.fov -= event.wheelDeltaY * 0.005;
camera.position.y -= event.wheelDeltaY * 0.0005;
// Opera / Explorer 9
} else if ( event.wheelDelta ) {
camera.fov -= event.wheelDelta * 0.005;
camera.position.y += event.wheelDeltaY * 0.0005;
// Firefox
} else if ( event.detail ) {
camera.fov += event.detail * 1.0;
camera.position.y -= event.detail* 0.05;
}
camera.updateProjectionMatrix();
}
var render = function () {
requestAnimationFrame( render );
if(userMouseDown && !hitAnchor){
var alpha = Math.max(-85,Math.min(85,mouseDragVector.y));
var beta = THREE.Math.degToRad(90-alpha);
var gamma = THREE.Math.degToRad(mouseDragVector.x);
var x,y,z;
x = Math.sin(beta) * Math.cos(gamma);
y = Math.cos(beta);
z = Math.sin(beta) * Math.sin(gamma);
target = new THREE.Vector3(x,y,z);
camera.lookAt(target.clone().add(camera.position));
var dis = alpha/85.0*sphereRadius;
viewFinderHeight = dis;
newViewFinder(dis,dis-viewFinderScale,Math.abs(radius1-radius2)*0.5);
}
viewFinder.lookAt(new THREE.Vector3(target.x,0,target.z).applyAxisAngle(new THREE.Vector3(0,1,0),-Math.PI/8));
renderer.render(scene, camera);
};
var createGui = function(){
var gui = new dat.GUI();
var parameters = {
extractImage : function(){
extractImage();
}
};
gui.add(parameters,'extractImage').name('Extract Image');
gui.open();
};
var extractImage = function(){
var uv1,uv2,uv3,uv4;
uv1 = new THREE.Vector2();
uv4 = new THREE.Vector2();
var v1,v2,cross;
var worldPos = new THREE.Vector3().setFromMatrixPosition(anchor1.matrixWorld);
v1 = new THREE.Vector3().setFromMatrixPosition(anchor2.matrixWorld);
v1.sub(worldPos);
v2 = new THREE.Vector3().setFromMatrixPosition(anchor3.matrixWorld);
v2.sub(worldPos);
cross = new THREE.Vector3();
cross.crossVectors(v1,v2);
cross.multiplyScalar(-1);
cross.normalize();
raycaster.set(worldPos,cross);
var dir = raycaster.ray.direction;
var origin = raycaster.ray.origin;
var length = 100;
var hex = 0xffff00;
var arrowHelper = new THREE.ArrowHelper( dir, origin, length, hex );
scene.add( arrowHelper );
var intersectedObject = raycaster.intersectObject(sphere);
var faceIndex = intersectedObject[0].faceIndex;
var geometry = sphere.geometry;
uv1.x = Math.min(geometry.faceVertexUvs[0][faceIndex][0].x, geometry.faceVertexUvs[0][faceIndex][1].x, geometry.faceVertexUvs[0][faceIndex][2].x);
uv1.y = Math.min(geometry.faceVertexUvs[0][faceIndex][0].y, geometry.faceVertexUvs[0][faceIndex][1].y, geometry.faceVertexUvs[0][faceIndex][2].y);
worldPos = new THREE.Vector3().setFromMatrixPosition(anchor4.matrixWorld);
v1 = new THREE.Vector3().setFromMatrixPosition(anchor3.matrixWorld);
v1.sub(worldPos);
v2 = new THREE.Vector3().setFromMatrixPosition(anchor2.matrixWorld);
v2.sub(worldPos);
cross = new THREE.Vector3();
cross.crossVectors(v1,v2);
cross.multiplyScalar(-1);
cross.normalize();
raycaster.set(worldPos,cross);
dir = raycaster.ray.direction;
origin = raycaster.ray.origin;
length = 100;
hex = 0xffff00;
arrowHelper = new THREE.ArrowHelper( dir, origin, length, hex );
scene.add( arrowHelper );
intersectedObject = raycaster.intersectObject(sphere);
faceIndex = intersectedObject[0].faceIndex;
uv4.x = Math.max(geometry.faceVertexUvs[0][faceIndex][0].x, geometry.faceVertexUvs[0][faceIndex][1].x, geometry.faceVertexUvs[0][faceIndex][2].x);
uv4.y = Math.max(geometry.faceVertexUvs[0][faceIndex][0].y, geometry.faceVertexUvs[0][faceIndex][1].y, geometry.faceVertexUvs[0][faceIndex][2].y);
var secondLayer = document.getElementById('layer2');
secondLayer.width = window.innerWidth;
secondLayer.height = window.innerHeight;
var context = secondLayer.getContext('2d');
var image = new Image();
image.onload = function(){
var sourceX = uv1.x*image.width;
var sourceY = (1-uv1.y)*image.height;
var sourceWidth = uv4.x*image.width-sourceX;
var sourceHeight = (1-uv4.y)*image.height-sourceY;
context.drawImage(image,sourceX,sourceY,sourceWidth,sourceHeight,0,0,window.innerWidth,window.innerHeight);
var dataUrl = secondLayer.toDataURL();
window.open(dataUrl);
};
image.src = 'panoramaHalf2.jpg';
};
var newViewFinder = function(distanceY1,distanceY2,offset){
scene.remove(viewFinder);
viewFinder = new THREE.Object3D();
var pos1 = new THREE.Vector3(0,1,0).multiplyScalar(distanceY1);
var pos2 = new THREE.Vector3(0,1,0).multiplyScalar(distanceY2);
viewFinderScale = pos1.distanceTo(pos2);
pos2.add(new THREE.Vector3(0,1,0).multiplyScalar(offset));
raycaster.set(pos1,new THREE.Vector3(0,0,1));
var object = raycaster.intersectObject(sphere);
var anchor1Pos = object[0].point;
anchor1Pos.multiplyScalar(0.95);
radius1 = pos1.distanceTo(anchor1Pos);
raycaster.set(pos2,new THREE.Vector3(0,0,1));
object = raycaster.intersectObject(sphere);
var anchor3Pos = object[0].point;
anchor3Pos.multiplyScalar(0.95);
radius2 = pos2.distanceTo(anchor3Pos);
var spline1 = new THREE.SplineCurve3();
var points1 = new Array();
points1.push(anchor1Pos);
for (var t = viewFinderLength/100; t < viewFinderLength; t+=viewFinderLength/100) {
points1.push(new THREE.Vector3(radius1*Math.sin(THREE.Math.degToRad(t)),pos1.y,radius1* Math.cos(THREE.Math.degToRad(t))));
}
spline1.points = points1;
var anchor2Pos = points1[points1.length-1];
var spline2 = new THREE.SplineCurve3();
var points2 = new Array();
points2.push(anchor3Pos);
for (var t = viewFinderLength/100; t < viewFinderLength; t+=viewFinderLength/100) {
points2.push(new THREE.Vector3(radius2*Math.sin(THREE.Math.degToRad(t)),pos2.y,radius2* Math.cos(THREE.Math.degToRad(t))));
}
spline2.points = points2;
var anchor4Pos = points2[points2.length-1];
var material = new THREE.MeshBasicMaterial();
material.side = THREE.DoubleSide;
var geometry = new THREE.TubeGeometry(spline1,64,0.1);
var mesh1 = new THREE.Mesh(geometry,material);
geometry = new THREE.TubeGeometry(spline2,64,0.1);
var mesh2 = new THREE.Mesh(geometry,material);
var connectSpline1 = new THREE.SplineCurve3([anchor1Pos,anchor3Pos]);
geometry = new THREE.TubeGeometry(connectSpline1,64,0.1);
var connectMesh1 = new THREE.Mesh(geometry,material);
var connectSpline2 = new THREE.SplineCurve3([anchor2Pos,anchor4Pos]);
geometry = new THREE.TubeGeometry(connectSpline2,64,0.1);
var connectMesh2 = new THREE.Mesh(geometry,material);
material = new THREE.MeshBasicMaterial({color: 0xff0000})
anchor1 = new THREE.Mesh(new THREE.SphereGeometry(0.3),material);
anchor1.position.set(anchor1Pos.x,anchor1Pos.y,anchor1Pos.z);
mesh1.add(anchor1);
anchor2 = new THREE.Mesh(new THREE.SphereGeometry(0.3),material);
anchor2.position.set(anchor2Pos.x,anchor2Pos.y,anchor2Pos.z);
mesh1.add(anchor2);
anchor3 = new THREE.Mesh(new THREE.SphereGeometry(0.3),material);
anchor3.position.set(anchor3Pos.x,anchor3Pos.y,anchor3Pos.z);
mesh2.add(anchor3);
anchor4 = new THREE.Mesh(new THREE.SphereGeometry(0.3),material);
anchor4.position.set(anchor4Pos.x,anchor4Pos.y,anchor4Pos.z);
mesh2.add(anchor4);
viewFinder.add(mesh1);
viewFinder.add(mesh2);
viewFinder.add(connectMesh1);
viewFinder.add(connectMesh2);
scene.add(viewFinder);
};
var userMouseDown = false;
var mouseDownPosition = new THREE.Vector3(0,0,0);
var mouseDragVector = new THREE.Vector3(0,0,0);
var oldMouseDragVector = new THREE.Vector3(0,0,0);
var lastMousePosition = new THREE.Vector2(0,0);
var target = new THREE.Vector3(0,0,0);
//Anchor Points
var anchor1,anchor2,anchor3,anchor4;
var anchorSide; // 0 = left, 1 = right
var hitAnchor = false;
var viewFinderLength = 45;
var viewFinder;
var viewFinderHeight;
var viewFinderScale = 0.0;
var radius1,radius2;
var sphereRadius = 20.0;
var raycaster = new THREE.Raycaster();
document.addEventListener( 'mousedown', onMouseDown, false);
document.addEventListener( 'mouseup', onMouseUp, false);
document.addEventListener( 'mousemove', onMouseMove, false);
document.addEventListener( 'wheel', onWheel, false);
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 1, 1000 );
//camera.lookAt(target);
var canvas = document.getElementById('myCanvas');
var renderer = new THREE.WebGLRenderer({canvas: canvas});
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var geometry = new THREE.SphereGeometry(sphereRadius,128,128);
//calculateUV(geometry);
var texture = THREE.ImageUtils.loadTexture('panoramaHalf3.jpg');
texture.minFilter = THREE.NearestFilter;
var material = new THREE.MeshBasicMaterial( {map: texture });
material.side = THREE.BackSide;
var sphere = new THREE.Mesh( geometry, material );
camera.position.y = -2;
//camera.rotation.y = Math.PI * 1.5;
var light = new THREE.AmbientLight( 0x404040 ); // soft white light
scene.add( light );
scene.add( sphere );
scene.add(camera);
//createViewFinder();
createGui();
newViewFinder(sphereRadius/4,-sphereRadius/4,0);
viewFinderHeight = sphereRadius/4;
//var cPlane = createClippingPlane();
//scene.add(cPlane);
render();
</script>
<a href="" id="picDL"></a>
</body>
</html>