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temporal.html
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temporal.html
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<!DOCTYPE html>
<html>
<head>
<title>Scalable Hyperbolic Graph</title>
<!--<script type="text/javascript" src="js/three.min.js"></script>-->
<!--<script src='http://mrdoob.github.com/three.js/build/three.min.js'></script>-->
<script type="text/javascript" src="js/three.js"></script>
<script type="text/javascript" src="js/stats.js"></script>
<script type="text/javascript" src='js/threex.rendererstats.js'></script>
<script type="text/javascript" src="js/dat.gui.js"></script>
<script type="text/javascript" src="js/math.js"></script>
<script type="text/javascript" src="js/tween.min.js"></script>
<script type="text/javascript" src="js/OrbitControls.js"></script>
<script type="text/javascript" src="temporal.js"></script>
<style>
body{
margin: 0;
overflow: hidden;
}
#content{
margin: 0;
overflow:hidden;
}
#type{
position:absolute;
right:10px;
top:35px;
}
#buttonSwap{
position:absolute;
right:5px;
}
#buttonAdd{
position:absolute;
top:190px;
right:10px;
}
#buttonDelete{
position:absolute;
top:160px;
right:10px;
}
#add{
position:absolute;
right:10px;
top:125px;
}
#add div{
float:right;
}
</style>
</head>
<body>
<div id="content">
<div id="stats">
</div>
<form id="type">
<input type="radio" name="graph" value="random" checked="checked">Random<br>
<input type="radio" name="graph" value="life">Tree of Life<br>
<input type="radio" name="graph" value="languages">Languages of the world<br>
<input id="buttonSwap" type="submit" value="Swap">
</form>
<!-- <div id="add">
Adding a new Node:<br>
<div>Parent: <input type="number" id="newParent" name="parent" value="2"></div><br>
<div>Name: <input type="text" id="newName" name="name" value="illo, me llamo illo"></div>
</div> -->
<button onclick="deleteNode()" id="buttonDelete">Delete node</button>
<button onclick="addNode()" id="buttonAdd">Add node</button>
<div id="numberOfNodes">
</div>
<div id="output">
</div>
<div id="clicked">
</div>
<div id="rendererStats">
</div>
</div>
<script type="text/javascript">
//Implemented, not in use anymore
//Function to delete the scene (except the outer circle)
function deleteGraph(){
while (scene.children.length > 1){
for (var i=0 ; i<scene.children.length ; i++){
if (scene.children[i].name != "outside")
scene.remove(scene.children[i]);
}
}
}
//load the library math.js to ease work with complex numbers
var math = mathjs();
//variables for the size of the proper representation area
var graphWidthArea,graphHeigthArea;
//history of nodes clicked, to add back/forward functionality
var visited = [];
//labels, also room for improvement here TODO
var labels = [];
//system of points (particles), what is represented
var system;
//initialise geometry and material for edges
var edges;
var edgeGeometry = new THREE.Geometry()
var edgeMaterial = new THREE.LineBasicMaterial({color:0xaaaa00,linewidth:1});
//initialise the stats, to check performance-------------------------------
var stats = new Stats();
stats.setMode(0); // 0: fps, 1: ms
// Align top-left
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
document.body.appendChild( stats.domElement );
var rendererStats = new THREEx.RendererStats()
rendererStats.domElement.style.position = 'absolute'
rendererStats.domElement.style.left = '0px'
rendererStats.domElement.style.bottom = '0px'
document.body.appendChild( rendererStats.domElement )
//create the scene, where all the objects are added
var scene = new THREE.Scene();
//create camera
var camera = new THREE.PerspectiveCamera(45, window.innerWidth/ window.innerHeight, 0.1, 100000);
//point the camera to the center (related to DISTANCE)
camera.position.z = 2.5;
camera.lookAt(scene.position);
//add a circle to see the representation area
var materialC = new THREE.LineBasicMaterial({color: 0x000000});
var geometryC = new THREE.CircleGeometry(1.03,64);
geometryC.vertices.shift(); // Remove center vertex
var outsideCircle = new THREE.Line(geometryC,materialC);
outsideCircle.name = "outside";
scene.add(outsideCircle);
//create a random graph or import a graph
var MAX_CHILDREN_PER_NODE = 3;
var MIN_CHILDREN_PER_NODE = 2;
var DEPTH_LEVEL = 4;
//hgraph is the graph in every moment
var hgraph;
var hgraphs = [];
//http://stackoverflow.com/questions/979975/how-to-get-the-value-from-url-parameter
//getting the type of graph from URL parameter
var queryString = function () {
var query_string = {};
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
// If first entry with this name
if (typeof query_string[pair[0]] === "undefined") {
query_string[pair[0]] = pair[1];
// If second entry with this name
} else if (typeof query_string[pair[0]] === "string") {
var arr = [ query_string[pair[0]], pair[1] ];
query_string[pair[0]] = arr;
// If third or later entry with this name
} else {
query_string[pair[0]].push(pair[1]);
}
}
return query_string;
} ();
//console.log(queryString.graph);
var graphToBeDrawn = queryString.graph || "random";
var randomDepth = (((queryString.depth>15)||(queryString.depth<1)) ? 4 : queryString.depth) || 4;
switch (graphToBeDrawn){
case "random":
DEPTH_LEVEL = randomDepth;
hgraph = createRandomGraph(MAX_CHILDREN_PER_NODE,MIN_CHILDREN_PER_NODE,DEPTH_LEVEL);
break;
case "life":
//load the CSV format and really specify path TODO
hgraph = importGraph("life");
DEPTH_LEVEL = hgraph.calculateNewDepth(0);
break;
case "languages":
//load the CSV format and really specify path TODO
hgraph = importGraph("languages");
DEPTH_LEVEL = hgraph.calculateNewDepth(0);
break;
default:
hgraph = createRandomGraph(MAX_CHILDREN_PER_NODE,MIN_CHILDREN_PER_NODE,DEPTH_LEVEL);
break;
}
//draw the desired graph
drawGraph();
// create a renderer and set the size
var renderer = new THREE.WebGLRenderer({alpha: true});
renderer.setClearColor(0xCCCCCC, 1.0);
//graphWidthArea = window.innerHeight+window.innerHeight/3;
graphWidthArea = window.innerWidth;
graphHeigthArea = window.innerHeight;
renderer.setSize(graphWidthArea, graphHeigthArea);
renderer.autoUpdateObjects = false;
controls = new THREE.OrbitControls(camera, renderer.domElement);
//controls.noRotate = true;
//controls.noPan = true;
//append the renderer to the page
document.body.appendChild( renderer.domElement );
//we ask for a frame draw
requestAnimationFrame(render);
var frame = 0;
//rendering (what's done in every iteration)
function render() {
//for the rendering stats
stats.update();
rendererStats.update(renderer);
//for the tweening effects
TWEEN.update();
//for the controls (zoom)
controls.update();
//color needs update for mouseover effect
system.geometry.colorsNeedUpdate = true;
//geometry needs update in case of any transformation
system.geometry.verticesNeedUpdate = true;
//edges also need update
edges.geometry.verticesNeedUpdate = true;
requestAnimationFrame(render);
renderer.render(scene,camera);
/*for (var i = 0 ; i < labels.length ; i++){
if ((Math.pow(labels[i].position.x,2) + Math.pow(labels[i].position.y,2)) < 2950000 || labels[i].visibility){
labels[i].visible = true;
} else {
labels[i].visible = false;
}
}*/
}
//draw the initial Graph
function drawGraph(){
//to modify this DEPTH_LEVEL for a method to find it out in the given graph
var distance = 1 / DEPTH_LEVEL;
var maxDeepen = DEPTH_LEVEL;
//create the geometry and material for the particle system
var geom = new THREE.Geometry();
var material = new THREE.PointCloudMaterial({size:0.1,vertexColors:true});
//create first particle, centered in the middle
var particle = new THREE.Vector3(0,0,0);
hgraph.vertices[0].position = particle;
var particleColor = new THREE.Color(Math.random()*0xffffff);
geom.vertices.push(particle);
geom.colors.push(particleColor);
//Set the label name and position
label = makeTextSprite( hgraph.vertices[0].name, { fontsize: 32, fontface: "Georgia", borderColor: {r:0, g:0, b:255, a:1.0} } );
label.position.set(0,0,0);
//labels.push(label);
//calculate angle corresponding each child
var angle = (2*math.pi)/(hgraph.vertices[0].linksTo.length)
//number where to start
var iter = math.complex({r:1,phi:-angle/2});
//complex number to multiply to get desired
var trans = math.complex({r:1,phi:angle});
//draw all the linked nodes to the initial node
for (var i=0 ; i<hgraph.vertices[0].linksTo.length ; i++){
drawChild(hgraph.vertices[0].linksTo[i].id,1,iter,angle,particle);
iter = math.multiply(iter,trans);
}
//subfunction for drawing recursively every child (linked node)
function drawChild(son,prof,iteration,angle,particleFather){
posX = (distance*prof)*iteration.re;
posY = (distance*prof)*iteration.im;
prof++;
//id of the processing vertex
var id = hgraph.vertices[son].id;
//create the particle in the desired position
var particle = new THREE.Vector3(posX, posY, 0);
//associate particle position to the graph
hgraph.vertices[id].position = particle;
geom.vertices[id] = particle;
geom.colors[id] = new THREE.Color(Math.random()*0xffffff);
edgeGeometry.vertices.push(particle);
edgeGeometry.vertices.push(particleFather);
//Set the label name and position
label = makeTextSprite( hgraph.vertices[id].name, { fontsize: 32, fontface: "Georgia", borderColor: {r:0, g:0, b:255, a:1.0} } );
label.position.set(posX,posY,0);
//labels[id]=label;
//calculate angle corethrsponding each child
var subangle = (angle)/(hgraph.vertices[son].linksTo.length);
//number where to start
var start = math.multiply(iteration,math.complex({r:1,phi:-angle/2}));
start = math.multiply(start,math.complex({r:1,phi:subangle/2}));
//complex number to multiply to get desired
var transform = math.complex({r:1,phi:subangle});
//draw all the linked nodes tproo this node
for (var i=0 ; i<hgraph.vertices[son].linksTo.length ; i++){
drawChild(hgraph.vertices[son].linksTo[i].id,prof,start,subangle,particle);
start = math.multiply(start,transform);
}
}
/*for (var i = 0 ; i < labels.length ; i++){
scene.add(labels[i]);
}*/
visited.push(0);
edges = new THREE.Line(edgeGeometry, edgeMaterial, THREE.LinePieces);
edges.name = "edges";
scene.add(edges);
system = new THREE.PointCloud(geom, material);
system.name = "nodes";
scene.add(system);
}
//draw the initial Graph
function drawNewGraph(newZ,hgraph2){
//to modify this DEPTH_LEVEL for a method to find it out in the given graph
var depth = hgraph2.calculateNewDepth(0);
var distance = 1 / depth;
var maxDeepen = depth;
var system2,edges2;
var edgeGeometry2 = new THREE.Geometry()
var edgeMaterial2 = new THREE.LineBasicMaterial({color:0xaa00aa,linewidth:1});
//create the geometry and material for the particle system
var geom2 = new THREE.Geometry();
var material2 = new THREE.PointCloudMaterial({size:0.1,vertexColors:true});
//create first particle, centered in the middle
var particle = new THREE.Vector3(0,0,newZ);
hgraph2.vertices[0].position = particle;
var particleColor = system.geometry.colors[0];
geom2.vertices.push(particle);
geom2.colors.push(particleColor);
//Set the label name and position
//label = makeTextSprite( hgraph2.vertices[0].name, { fontsize: 32, fontface: "Georgia", borderColor: {r:0, g:0, b:255, a:1.0} } );
//label.position.set(0,0,newZ);
//labels.push(label);
//calculate angle corresponding each child
var angle = (2*math.pi)/(hgraph2.vertices[0].linksTo.length)
//number where to start
var iter = math.complex({r:1,phi:-angle/2});
//complex number to multiply to get desired
var trans = math.complex({r:1,phi:angle});
//draw all the linked nodes to the initial node
for (var i=0 ; i<hgraph2.vertices[0].linksTo.length ; i++){
drawChild(hgraph2.vertices[0].linksTo[i].id,1,iter,angle,particle);
iter = math.multiply(iter,trans);
}
//system.geometry.colors[id];
//subfunction for drawing recursively every child (linked node)
function drawChild(son,prof,iteration,angle,particleFather){
posX = (distance*prof)*iteration.re;
posY = (distance*prof)*iteration.im;
prof++;
//id of the processing vertex
var id = hgraph2.vertices[son].id;
//create the particle in the desired position
var particle = new THREE.Vector3(posX, posY, newZ);
//associate particle position to the graph
hgraph2.vertices[id].position = particle;
geom2.vertices[id] = particle;
var color = new THREE.Color(system.geometry.colors[id]);
geom2.colors[id] = color;
edgeGeometry2.vertices.push(particle);
edgeGeometry2.vertices.push(particleFather);
//Set the label name and position
label = makeTextSprite( hgraph2.vertices[id].name, { fontsize: 32, fontface: "Georgia", borderColor: {r:0, g:0, b:255, a:1.0} } );
label.position.set(posX,posY,0);
//labels[id]=label;
//calculate angle corethrsponding each child
var subangle = (angle)/(hgraph2.vertices[son].linksTo.length);
//number where to start
var start = math.multiply(iteration,math.complex({r:1,phi:-angle/2}));
start = math.multiply(start,math.complex({r:1,phi:subangle/2}));
//complex number to multiply to get desired
var transform = math.complex({r:1,phi:subangle});
//draw all the linked nodes tproo this node
for (var i=0 ; i<hgraph2.vertices[son].linksTo.length ; i++){
drawChild(hgraph2.vertices[son].linksTo[i].id,prof,start,subangle,particle);
start = math.multiply(start,transform);
}
}
/*for (var i = 0 ; i < labels.length ; i++){
scene.add(labels[i]);
}*/
visited.push(0);
edges2 = new THREE.Line(edgeGeometry2, edgeMaterial2, THREE.LinePieces);
edges2.name = "edges";
scene.add(edges2);
system2 = new THREE.PointCloud(geom2, material2);
system2.name = "nodes";
scene.add(system2);
//less color intensity
for (var i = 0; i < system.geometry.colors.length ; i++){
system.geometry.colors[i].setHSL(1,1,0.9);
//console.log(system.geometry.colors[i]);
}
}
//function reCenterGraph
//@param newCenter id of the node to put in the center
function reCenterGraph(newCenter){
var newGraph = hgraph;
var newDepth = newGraph.calculateNewDepth(newCenter);
//to modify this DEPTH_LEVEL for a method to find it out in the given graph
var distance = 1 / newDepth;
var maxDeepen = newDepth;
newGraph.resetProcessed();
newGraph.vertices[newCenter].position.x=0;
newGraph.vertices[newCenter].position.y=0;
newGraph.vertices[newCenter].processed=true;
var links = newGraph.linksNotProcessed(newCenter);
//calculate angle corresponding each child
//var angle = (2*math.pi)/(links.length);
if (newGraph.vertices[newCenter].linksTo.length == 0){
var angle = (2*math.pi)/(3);
//number where to start
var iter = math.complex({r:1,phi:math.pi});
} else {
var angle = (2*math.pi)/(links.length);
//number where to start
var iter = math.complex({r:1,phi:-angle/2});
}
//complex number to multiply to get desired
var trans = math.complex({r:1,phi:angle});
//draw all the linked nodes to the initial node
for (var i=0 ; i<links.length ; i++){
updateChild(links[i].id,1,iter,angle,0,0);
iter = math.multiply(iter,trans);
}
/*for (var i = 0 ; i<labels.length ; i++){
labels[i].position.set(newGraph.vertices[i].position.x,newGraph.vertices[i].position.y,0);
}*/
return newGraph;
//subfunction for updating recursively every child (linked node)
function updateChild(son,prof,iteration,angle,positionX,positionY){
posX = (distance*prof)*iteration.re;
posY = (distance*prof)*iteration.im;
prof++;
//id of the processing vertex
var id = hgraph.vertices[son].id;
//associate particle position to the graph
newGraph.vertices[id].position = new THREE.Vector3(posX, posY, 0);
newGraph.vertices[id].processed = true;
var position3D = new THREE.Vector3(positionX,positionY,0);
var positionSon = newGraph.vertices[id].position;
//calculate angle corresponding each child
var links = newGraph.linksNotProcessed(id);
var subangle = (angle)/(links.length);
//number where to start
var start = math.multiply(iteration,math.complex({r:1,phi:-angle/2}));
start = math.multiply(start,math.complex({r:1,phi:subangle/2}));
//complex number to multiply to get desired
var transform = math.complex({r:1,phi:subangle});
//draw all the linked nodes to this node
for (var i=0 ; i<links.length ; i++){
updateChild(links[i].id,prof,start,subangle,positionSon.x,positionSon.y);
start = math.multiply(start,transform);
}
}
}
var zProf = 0;
/*function deleteNode
*@param nodeID id of the node to delete
*@return
*/
function deleteNode(nodeID){
hgraph.deleteNode(hgraph.vertices.length-1);
}
//function addNode
//
//@param
//@return
function addNode(name){
var newName = name || "new node, jejeje" ;
hgraph.newNode(newName);
//console.log(hgraph.changes);
/*hgraphs[0] = hgraph;
var hgraph2 = hgraph;
var id = hgraph2.vertices.length;
var vertex = new Vertex(id);
vertex.id = id;
vertex.name = document.getElementById('newName').value || "My name is: "+id;
hgraph2.addVertex(vertex,hgraph2.vertices[document.getElementById('newParent').value]);
console.log(hgraph2.vertices.length);
zProf += 0.9;
drawNewGraph(zProf,hgraph2);*/
//hgraphs[1] = hgraph2;
}
//function moveGraph
//@param p complex transformation
//@return newGraph updated graph
function moveGraph(p){
var newGraph = hgraph;
for (var i = 0 ; i<newGraph.vertices.length ; i++){
//z: complex number to transform
var z = math.complex(newGraph.vertices[i].position.x,newGraph.vertices[i].position.y);
//apply transformation
var newPos = transformation(p,z);
//update position of the node in the newGraph
newGraph.vertices[i].position.x = newPos.re;
newGraph.vertices[i].position.y = newPos.im;
//update the position for the labels
//labels[i].position.set(newGraph.vertices[i].position.x,newGraph.vertices[i].position.y,0);
}
function transformation(p,z){
var num = math.add(z,p);
var den = math.add(1,math.multiply(math.conj(p),z));
var zt = math.divide(num,den);
return zt;
}
return newGraph;
}
//From Stemkoski example: Sprite-Text-Labes.html
// TODO delete not needed stuff and comment things
function makeTextSprite( message, parameters ){
if ( parameters === undefined ) parameters = {};
var fontface = parameters.hasOwnProperty("fontface") ?
parameters["fontface"] : "Arial";
var fontsize = parameters.hasOwnProperty("fontsize") ?
parameters["fontsize"] : 18;
var borderThickness = parameters.hasOwnProperty("borderThickness") ?
parameters["borderThickness"] : 4;
var borderColor = parameters.hasOwnProperty("borderColor") ?
parameters["borderColor"] : { r:0, g:0, b:0, a:1.0 };
var backgroundColor = parameters.hasOwnProperty("backgroundColor") ?
parameters["backgroundColor"] : { r:255, g:255, b:255, a:1.0 };
//var spriteAlignment = THREE.SpriteAlignment.topLeft;
var canvas = document.createElement('canvas');
var context = canvas.getContext('2d');
context.font = "Bold " + fontsize + "px " + fontface;
// get size data (height depends only on font size)
var metrics = context.measureText( message );
var textWidth = metrics.width;
// background color
context.fillStyle = "rgba(" + backgroundColor.r + "," + backgroundColor.g + ","
+ backgroundColor.b + "," + backgroundColor.a + ")";
// border color
context.strokeStyle = "rgba(" + borderColor.r + "," + borderColor.g + ","
+ borderColor.b + "," + borderColor.a + ")";
context.lineWidth = borderThickness;
//roundRect(context, borderThickness/2, borderThickness/2, textWidth + borderThickness, fontsize * 1.4 + borderThickness, 6);
// 1.4 is extra height factor for text below baseline: g,j,p,q.
// text color
context.fillStyle = "rgba(0, 0, 0, 1.0)";
context.fillText( message, borderThickness, fontsize + borderThickness);
// canvas contents will be used for a texture
var texture = new THREE.Texture(canvas)
texture.needsUpdate = true;
var spriteMaterial = new THREE.SpriteMaterial(
{ map: texture, useScreenCoordinates: false} );
var sprite = new THREE.Sprite( spriteMaterial );
sprite.scale.set(0.5,0.25,0.005);
return sprite;
}
//information about number of nodes drawn. Align top-right
document.getElementById('numberOfNodes').innerHTML = "Number of nodes drawn: "+hgraph.vertices.length;
document.getElementById('numberOfNodes').style.position = 'absolute';
document.getElementById('numberOfNodes').style.right = '10px';
document.getElementById('numberOfNodes').style.top = '10px';
//information about interaction with nodes. Align bottom-right
document.getElementById('clicked').innerHTML = "No interaction until now";
document.getElementById('clicked').style.position = 'absolute';
document.getElementById('clicked').style.right = '10px';
document.getElementById('clicked').style.bottom = '10px';
//------------------------LISTENERS--------------------------
//add listener to allow clickable objects
document.addEventListener('mousedown', onDocumentMouseDown, false);
//add listener for resizing window
document.addEventListener('resize', onWindowResize, false );
//add listener for moving mouse
document.addEventListener('mousemove', onDocumentMouseMove, false );
//add listener for mouseclick released
//document.addEventListener('mouseup', onDocumentMouseUp, false );
//variables used by all events:
var raycaster = new THREE.Raycaster();
var edgesRaycaster = new THREE.Raycaster();
var vector = new THREE.Vector3();
raycaster.params.PointCloud.threshold = 0.0225;
//print the properties of a node if is clicked and bring it to the center
function onDocumentMouseDown(event) {
event.preventDefault();
//check if some node clicked, for displaying information and centering
vector.set(( event.clientX / window.innerWidth ) * 2 - 1, -( event.clientY / window.innerHeight ) * 2 + 1, 0.5);
vector.unproject(camera);
raycaster.ray.set(camera.position, vector.sub(camera.position).normalize());
intersects = raycaster.intersectObject(system);
if (intersects.length > 0) {
document.getElementById('clicked').innerHTML = "Clicked node: "+intersects[0].index + ", which name is: "+hgraph.vertices[intersects[0].index].name;
var clickedX = (event.clientX / window.innerWidth ) * 2 - 1;
var clickedY = -( event.clientY / window.innerHeight ) * 2 + 1;
//update the history of visited nodes
visited.push(intersects[0].index);
/*// RECENTRES THE GRAPH APPLYING TRANSFORMATION
var p = math.complex(-clickedX,-clickedY);
var recalculatedGraph = moveGraph(p);
hgraph = recalculatedGraph;
// create a tween for rendering smoothly the transitions
var posSrc = {tmp: 150}
var tween = new TWEEN.Tween(posSrc).to({tmp: 1}, 1000);
//to choose between transitions
tween.easing(TWEEN.Easing.Sinusoidal.InOut);
var onUpdate = function () {
var count = 0;
var tmp = this.tmp;
system.geometry.vertices.forEach(function (e) {
var newX = ((e.x)+((recalculatedGraph.vertices[count].position.x-e.x)/tmp));
var newY = ((e.y)+((recalculatedGraph.vertices[count].position.y-e.y)/tmp));
system.geometry.vertices[count++].set(newX, newY, e.z);
});
};
tween.onUpdate(onUpdate);
tween.start();*/
// RECENTRES THE GRAPH WITH NEW ALGORITHM
var recalculatedGraph = reCenterGraph(intersects[0].index);
// create a tween for rendering smoothly the transitions
var posSrc = {tmp: 150}
var tween = new TWEEN.Tween(posSrc).to({tmp: 1}, 1000);
//to choose between transitions
tween.easing(TWEEN.Easing.Sinusoidal.InOut);
var onUpdate = function () {
var count = 0;
var tmp = this.tmp;
system.geometry.vertices.forEach(function (e) {
var newX = ((e.x)+((recalculatedGraph.vertices[count].position.x-e.x)/tmp));
var newY = ((e.y)+((recalculatedGraph.vertices[count].position.y-e.y)/tmp));
system.geometry.vertices[count++].set(newX, newY, e.z);
});
};
tween.onUpdate(onUpdate);
tween.start();
hgraph = recalculatedGraph;
} else { //if not, apply the desired transformation
//This handles the drag and drop functionality
var initialPointX = null;
var initialPointY = null;
document.onmousemove = function(e) {
if (!initialPointX && !initialPointY){
initialPointX = (e.clientX / window.innerWidth ) * 2 - 1;
initialPointY = -( e.clientY / window.innerHeight ) * 2 + 1;
}
var clickedX = (e.clientX / window.innerWidth ) * 2 - 1;
var clickedY = -( e.clientY / window.innerHeight ) * 2 + 1;
//------------------Algorithm in JavaScript (CPU)-----------------
if (e.shiftKey) {/*shift is down*/
controls.noRotate = true;
controls.noPan = true;
//Calculate the transformations
var p = math.complex(clickedX-initialPointX,clickedY-initialPointY);
var recalculatedGraph = moveGraph(p);
hgraph = recalculatedGraph;
//Update the rendered system on the screen
for (var i=0 ; i<system.geometry.vertices.length ; i++){
system.geometry.vertices[i].set(recalculatedGraph.vertices[i].position.x, recalculatedGraph.vertices[i].position.y, 0);
}
initialPointX = clickedX;
initialPointY = clickedY;
}
//----------------Algorithm in Vertex-Shader (GPU)-----------------
//here we pass the value of the transformation (p=RE+jIM) to the shaders
/*initialTrans.set(clickedX-initialPointX,clickedY-initialPointY);
uniforms.trans.value = initialTrans;
uniforms.compute.value = 1;*/
//initialPointX = clickedX;
//initialPointY = clickedY;
}
this.onmouseup = function() {
//we release the mouse button
document.onmousemove = null;
//uniforms.compute.value = 0;
controls.noRotate = false;
controls.noPan = false;
}
}
}
var intersectedNode;
var originalColor = new THREE.Color();
var mouseOver = false;
//highlighting a node if mouse is over
function onDocumentMouseMove(event) {
event.preventDefault();
//check if some node clicked, for displaying information
vector.set(( event.clientX / window.innerWidth ) * 2 - 1, -( event.clientY / window.innerHeight ) * 2 + 1, 0.5);
vector.unproject(camera);
//First try to select edges and print information. Impossible with THREE.LinePieces
/*edgesRaycaster.ray.set(camera.position, vector.sub(camera.position).normalize());
intersectsEdges = edgesRaycaster.intersectObject(edges);
if (intersectsEdges.length > 0) {
console.log(intersectsEdges[0].object.geometry);
document.getElementById('clicked').innerHTML = "Intersected edge: "+intersectsEdges[0];// + ", which name is: "+hgraph.vertices[intersects[0].index].name;
}*/
raycaster.ray.set(camera.position, vector.sub(camera.position).normalize());
var intersects = raycaster.intersectObject(system);
if (intersects.length > 0) {
if (!mouseOver){
var color = system.geometry.colors[intersects[0].index];
originalColor.setRGB(color.r,color.g,color.b);
intersectedNode = intersects[0].index;
//GPU picking example
//http://threejs.org/examples/webgl_interactive_cubes_gpu.html
system.geometry.colors[intersects[0].index].setRGB(1,1,1);
mouseOver = true;
document.getElementById('clicked').innerHTML = "Intersected node: "+intersects[0].index + ", which name is: "+hgraph.vertices[intersects[0].index].name;
//console.log(hgraph.vertices[intersects[0].index]);
document.body.style.cursor = 'pointer';
//label.position.set(vector.x,vector.y,0);
//label.visibility = true;
//labels[intersects[0].index].visibility = true;
}
} else {
if (mouseOver){
system.geometry.colors[intersectedNode].setRGB(originalColor.r,originalColor.g,originalColor.b);
mouseOver = false;
document.body.style.cursor = 'default';
//labels[intersectedNode].visibility = false;
}
}
}
//proper working when resizing window (apparently not working)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
}
</script>
</body>
</html>