GUIDE
- Left-click and drag the background to move the graph
- Left-click and drag the nodes to reorganize
- Left-click a node to view first level connections
- Double left-click a node to navigate to its page
- Double left-click the background to zoom in
- Right-click the background to zoom out
sigma.utils.pkg('sigma.canvas.nodes');
sigma.canvas.nodes.image = (function() {
var _cache = {},
_loading = {},
_callbacks = {};
// Return the renderer itself:
var renderer = function(node, context, settings) {
var args = arguments,
prefix = settings('prefix') || '',
size = node[prefix + 'size'],
color = node.color || settings('defaultNodeColor'),
url = node.url;
if (_cache[url]) {
context.save();
// Draw the clipping disc:
context.beginPath();
context.arc(
node[prefix + 'x'],
node[prefix + 'y'],
node[prefix + 'size'],
0,
Math.PI * 2,
true
);
context.closePath();
context.clip();
// Draw the image
context.drawImage(
_cache[url],
node[prefix + 'x'] - size,
node[prefix + 'y'] - size,
2 * size,
2 * size
);
// Quit the "clipping mode":
context.restore();
// Draw the border:
context.beginPath();
context.arc(
node[prefix + 'x'],
node[prefix + 'y'],
node[prefix + 'size'],
0,
Math.PI * 2,
true
);
context.lineWidth = 1;
context.strokeStyle = node.color || settings('defaultNodeColor');
context.stroke();
} else {
sigma.canvas.nodes.image.cache(url);
sigma.canvas.nodes.def.apply(
sigma.canvas.nodes,
args
);
}
};
// Let's add a public method to cache images, to make it possible to
// preload images before the initial rendering:
renderer.cache = function(url, callback) {
if (callback)
_callbacks[url] = callback;
if (_loading[url])
return;
var img = new Image();
img.onload = function() {
_loading[url] = false;
_cache[url] = img;
if (_callbacks[url]) {
_callbacks[url].call(this, img);
delete _callbacks[url];
}
};
_loading[url] = true;
img.src = url;
};
return renderer;
})();
var i,
s,
o,
offset_left = 0.5,
N = 1,
E = 40,
C = 5,
d = 0.5,
cs = [],
g = {
nodes: [],
edges: []
};
if (!sigma.classes.graph.hasMethod('neighbors')){
sigma.classes.graph.addMethod('neighbors', function(nodeId) {
var k,
neighbors = {},
index = this.allNeighborsIndex[nodeId] || {};
for (k in index)
neighbors[k] = this.nodesIndex[k];
return neighbors;
});
}
//adding the central node
g.nodes.push({
id: 3768,
label: 'Fabrice de Chaumont',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/06/research.pasteur.fr_fabrice-de-chaumont-150x150.png',
x: 0,
y: 0,
size: 30,
color: '#DDDDDD'
});
var biggest_node_size = 0;
N=10
// adding node
var x_node = Math.cos(2 * 0 * Math.PI / N) * 10;
var y_node = Math.sin(2 * 0 * Math.PI / N) * 10;
g.nodes.push({
id: 128509,
label: 'TOOL: Live Mouse Tracker',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2019/07/research_pasteur-41551_2019_396_fig1_html-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/tool/live-mouse-tracker/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 3768128509,
size: 0.5,
source: 3768,
target: 128509,
});
// adding node
var x_node = Math.cos(2 * 1 * Math.PI / N) * 10;
var y_node = Math.sin(2 * 1 * Math.PI / N) * 10;
g.nodes.push({
id: 96828,
label: 'EVENT: Training – Icy software (Image Analysis)',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2017/10/research_pasteur-test-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/event/training-icy-software-image-analysis-2/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 376896828,
size: 0.5,
source: 3768,
target: 96828,
});
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4634,
label: 'Stéphane Dallongeville',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_stephane-250x145-150x150.jpeg',
page_url: 'https://research.pasteur.fr/en/member/stephane-dallongeville/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 968284634,
size: 0.5,
source: 96828,
target: 4634 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 3768) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 968283768,
size: 0.5,
source: 96828,
target: 3768 });
// adding node
var x_node = Math.cos(2 * 2 * Math.PI / N) * 10;
var y_node = Math.sin(2 * 2 * Math.PI / N) * 10;
g.nodes.push({
id: 90216,
label: 'EVENT: Solutions for Open Science',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2017/09/research_pasteur-encartv2-1-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/event/solutions-for-open-science/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 376890216,
size: 0.5,
source: 3768,
target: 90216,
});
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 79072,
label: 'Albane Imbert',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2017/02/research.pasteur.fr_albane-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/albane-imbert/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 9021679072,
size: 0.5,
source: 90216,
target: 79072 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 3768) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 902163768,
size: 0.5,
source: 90216,
target: 3768 });
// adding node
var x_node = Math.cos(2 * 3 * Math.PI / N) * 10;
var y_node = Math.sin(2 * 3 * Math.PI / N) * 10;
g.nodes.push({
id: 80978,
label: 'EVENT: Training – Icy software (Image Analysis)',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2016/12/research.pasteur.fr_icy_imaging_software_logo-2-150x150.png',
page_url: 'https://research.pasteur.fr/en/event/training-icy-software-image-analysis/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 376880978,
size: 0.5,
source: 3768,
target: 80978,
});
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 4634) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 809784634,
size: 0.5,
source: 80978,
target: 4634 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 3768) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 809783768,
size: 0.5,
source: 80978,
target: 3768 });
// adding node
var x_node = Math.cos(2 * 4 * Math.PI / N) * 10;
var y_node = Math.sin(2 * 4 * Math.PI / N) * 10;
g.nodes.push({
id: 20929,
label: 'PROJECT: Adult neurogenesis and brain plasticity',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_a-model-system-to-study-adult-neurogenesis1-150x150.png',
page_url: 'https://research.pasteur.fr/en/project/a-model-system-to-study-adult-neurogenesis/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 376820929,
size: 0.5,
source: 3768,
target: 20929,
});
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4225,
label: 'Gérard Eberl',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_eberl-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/gerard-eberl/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294225,
size: 0.5,
source: 20929,
target: 4225 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4355,
label: 'Ivo Gomperts Boneca',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/10/research.pasteur.fr_ipp6314-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/ivo-gomperts-boneca/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294355,
size: 0.5,
source: 20929,
target: 4355 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4987,
label: 'Chiara Zurzolo',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2018/11/research_pasteur-chiara-zurzolo-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/chiara-zurzolo/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294987,
size: 0.5,
source: 20929,
target: 4987 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 6382,
label: 'Fabrice Chretien',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/10/research.pasteur.fr_sans-titre1-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/fabrice-chretien/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209296382,
size: 0.5,
source: 20929,
target: 6382 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 3768) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 209293768,
size: 0.5,
source: 20929,
target: 3768 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 6371,
label: 'Pauline Speder',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/06/research.pasteur.fr_dsc5160_2-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/pauline-speder/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209296371,
size: 0.5,
source: 20929,
target: 6371 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4489,
label: 'Françoise Lazarini-Serandour',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research.pasteur.fr_francoise-lazarini-serandour-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/francoise-lazarini-serandour/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294489,
size: 0.5,
source: 20929,
target: 4489 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 26499,
label: 'Rebecca Matsas',
type: 'image',
url: '',
page_url: 'https://research.pasteur.fr/en/riip_member/rebecca-matsas/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 2092926499,
size: 0.5,
source: 20929,
target: 26499 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4490,
label: 'Gabriel Lepousez',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research.pasteur.fr_gabriel-lepousez1-150x150.jpeg',
page_url: 'https://research.pasteur.fr/en/member/gabriel-lepousez/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294490,
size: 0.5,
source: 20929,
target: 4490 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4495,
label: 'Camille Mazo',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research.pasteur.fr_camille-mazo-e1480062308349-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/camille-mazo/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294495,
size: 0.5,
source: 20929,
target: 4495 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4488,
label: 'Mariana Alonso',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/09/research.pasteur.fr_foto-website-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/mariana-alonso/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294488,
size: 0.5,
source: 20929,
target: 4488 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 8476,
label: 'Anne Grelat',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/10/research.pasteur.fr_pasteur23-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/anne-grelat/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209298476,
size: 0.5,
source: 20929,
target: 8476 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4180,
label: 'James Di Santo',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2016/05/research.pasteur.fr_photojd-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/james-di-santo/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294180,
size: 0.5,
source: 20929,
target: 4180 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 4487,
label: 'Antoine Nissant',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/09/research.pasteur.fr_img_6385-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/antoine-nissant/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209294487,
size: 0.5,
source: 20929,
target: 4487 });
//check if content already exist
if (x_node<0){
x_site = x_node + ((Math.random() * 2)-1) - offset_left;
}else{
x_site = x_node + ((Math.random() * 2)-1) + offset_left;
}
if (y_node<0){
y_site = y_node + ((Math.random() * 2)-1) - offset_left;
}else{
y_site = y_node + ((Math.random() * 2)-1) + offset_left;
}
// adding site
g.nodes.push({
id: 3806,
label: 'Pierre-Marie Lledo',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/Lledo-2-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/pierre-marie-lledo/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 209293806,
size: 0.5,
source: 20929,
target: 3806 });
// adding node
var x_node = Math.cos(2 * 5 * Math.PI / N) * 10;
var y_node = Math.sin(2 * 5 * Math.PI / N) * 10;
g.nodes.push({
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// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 388) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 517388,
size: 0.5,
source: 517,
target: 388 });
var s = new sigma({
//container: document.getElementById('graph-main'),
graph: g,
renderer: {
// IMPORTANT:
// This works only with the canvas renderer, so the
// renderer type set as "canvas" is necessary here.
container: document.getElementById('graph-main'),
type: 'canvas'
},
settings: {
minNodeSize: 6,
maxNodeSize: 35,
mouseWheelEnabled: false,
font: 'Montserrat',
labelThreshold:25,
borderSize:1,
defaultNodeBorderColor: '#999',
sideMargin:25,
}
});
// We first need to save the original colors of our
// nodes and edges, like this:
s.graph.nodes().forEach(function(n) {
n.originalColor = n.color;
});
s.graph.edges().forEach(function(e) {
e.originalColor = e.color;
});
// When a node is clicked, we check for each node
// if it is a neighbor of the clicked one. If not,
// we set its color as grey, and else, it takes its
// original color.
// We do the same for the edges, and we only keep
// edges that have both extremities colored.
s.bind('clickNode', function(e) {
var nodeId = e.data.node.id,
toKeep = s.graph.neighbors(nodeId);
toKeep[nodeId] = e.data.node;
s.graph.nodes().forEach(function(n) {
if (toKeep[n.id])
n.color = '#35a9f5';
else
n.color = '#dddddd';
});
s.graph.edges().forEach(function(e) {
if (toKeep[e.source] && toKeep[e.target])
e.color = '#35a9f5';
else
e.color = '#dddddd';
});
// Since the data has been modified, we need to
// call the refresh method to make the colors
// update effective.
s.refresh();
});
// When the stage is clicked, we just color each
// node and edge with its original color.
s.bind('clickStage', function(e) {
s.graph.nodes().forEach(function(n) {
n.color = n.originalColor;
});
s.graph.edges().forEach(function(e) {
e.color = e.originalColor;
});
// Same as in the previous event:
s.refresh();
});
s.bind("doubleClickNode", function (e) {
$("#canvas-wrap, .sigma-scene, .sigma-mouse").val();
ajax_load_page( e.data.node.page_url );
});
var c = s.camera;
s.bind("rightClickStage", function (e) {
sigma.misc.animation.camera(c, {
ratio: c.ratio * c.settings('zoomingRatio')
}, {
duration: 200
});
});
// Configure the noverlap layout:
var noverlapListener = s.configNoverlap({
nodeMargin: 10,
scaleNodes: 0.3,
gridSize: 1,
easing: 'quadraticInOut', // animation transition function
duration: 4000 // animation duration. Long here for the purposes of this example only
});
// Bind the events:
noverlapListener.bind('start stop interpolate', function(e) {
//console.log(e.type);
if(e.type === 'start') {
//console.time('noverlap');
}
if(e.type === 'interpolate') {
//console.timeEnd('noverlap');
}
});
// Start the layout:
s.startNoverlap();
//s.refresh();
// Initialize the dragNodes plugin:
var dragListener = sigma.plugins.dragNodes(s, s.renderers[0]);
dragListener.bind('startdrag', function(event) {
});
dragListener.bind('drag', function(event) {
});
dragListener.bind('drop', function(event) {
});
dragListener.bind('dragend', function(event) {
});