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: 175222,
label: 'Daniela Ricci',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2022/01/research_pasteur-img-9269-1-150x150.jpeg',
x: 0,
y: 0,
size: 30,
color: '#DDDDDD'
});
var biggest_node_size = 0;
N=3
// 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: 217805,
label: 'PROJECT: TRANSLOCK-ER – Sec61 inhibitors for Oncology',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2024/01/research_pasteur-entranslock-er-sec61-inhibitors-for-oncology-research-pasteur-entranslock-er-sec61-inhibitors-for-oncology-capture-decran-2024-01-17-a-14.12.48-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/project/translock-er-sec61-inhibitors-for-oncology/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 175222217805,
size: 0.5,
source: 175222,
target: 217805,
});
//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: 4457,
label: 'Gilles Dadaglio',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_ha5-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/gilles-dadaglio/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 2178054457,
size: 0.5,
source: 217805,
target: 4457 });
//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: 198631,
label: 'Manon Capdeville',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2023/03/research_pasteur-research-pasteur-unknown-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/manon-capdeville/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 217805198631,
size: 0.5,
source: 217805,
target: 198631 });
//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: 8590,
label: 'Marine Oberkampf De Dabrun',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_ha10-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/marine-oberkampf-de-dabrun/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 2178058590,
size: 0.5,
source: 217805,
target: 8590 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 175222) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 217805175222,
size: 0.5,
source: 217805,
target: 175222 });
//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: 4171,
label: 'Caroline Demangel',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research_pasteur-caroline-demangel-id-caro2-2018-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/caroline-demangel/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 2178054171,
size: 0.5,
source: 217805,
target: 4171 });
// 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: 32156,
label: 'PROJECT: BURULI Path: the subversive role of mycolactone',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research_pasteur-mycobacterial-phenolic-glycolipids-and-innate-host-defenses-capture-decran-2020-12-18-a-14.41.20-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/project/mycolactone-of-m-ulcerans-and-immunodulation/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 17522232156,
size: 0.5,
source: 175222,
target: 32156,
});
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 4171) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 321564171,
size: 0.5,
source: 32156,
target: 4171 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 175222) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 32156175222,
size: 0.5,
source: 32156,
target: 175222 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 4457) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 321564457,
size: 0.5,
source: 32156,
target: 4457 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 198631) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 32156198631,
size: 0.5,
source: 32156,
target: 198631 });
//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: 197189,
label: 'Merlin Després',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2023/02/research_pasteur-despres-merlin-09-12-2019-2-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/merlin-despres/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 32156197189,
size: 0.5,
source: 32156,
target: 197189 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 8590) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 321568590,
size: 0.5,
source: 32156,
target: 8590 });
//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: 4172,
label: 'Laure Guenin-Mace',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2017/04/research.pasteur.fr_photo-laure-pasteur-1-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/laure-guenin-mace/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 321564172,
size: 0.5,
source: 32156,
target: 4172 });
// 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: 6177,
label: 'TEAM: Immunobiology and Therapy',
x: x_node,
y: y_node,
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/05/research_pasteur-enimmunobiology-and-therapyfrimmunobiologie-et-therapie-institutpasteur-i04790-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/team/immunobiology-and-therapy/',
size: 35,
color: '#DDDDDD'
});
//link content to central post
g.edges.push({
id: 1752226177,
size: 0.5,
source: 175222,
target: 6177,
});
//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: 31256,
label: 'Marie-Luce Kop',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/09/research.pasteur.fr_marie-luce-kop-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/marie-luce-kop/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 617731256,
size: 0.5,
source: 6177,
target: 31256 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 4457) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 61774457,
size: 0.5,
source: 6177,
target: 4457 });
//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: 7047,
label: 'Florence Bugault',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2015/07/research.pasteur.fr_florence-bugault-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/florence-bugault/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 61777047,
size: 0.5,
source: 6177,
target: 7047 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 175222) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 6177175222,
size: 0.5,
source: 6177,
target: 175222 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 8590) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 61778590,
size: 0.5,
source: 6177,
target: 8590 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 197189) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 6177197189,
size: 0.5,
source: 6177,
target: 197189 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 198631) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 6177198631,
size: 0.5,
source: 6177,
target: 198631 });
//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: 218052,
label: 'Kia Colleen Ferrell',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2024/01/research_pasteur-enkia-colleen-ferrell-1000010244-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/kia-colleen-ferrell/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 6177218052,
size: 0.5,
source: 6177,
target: 218052 });
//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: 219977,
label: 'Corentin Mallet',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2024/02/research_pasteur-encorentin-malletfrcorentin-mallet-img-1302-150x150.jpeg',
page_url: 'https://research.pasteur.fr/en/member/corentin-mallet/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 6177219977,
size: 0.5,
source: 6177,
target: 219977 });
//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: 240503,
label: 'Chloé Véront',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2025/03/research_pasteur-enchloe-verontfrchloe-veront-6e3781a8-71d7-41ed-a9bb-8c66d7caffc6-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/chloe-veront/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 6177240503,
size: 0.5,
source: 6177,
target: 240503 });
//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: 240509,
label: 'Julia Hehner',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2025/03/research_pasteur-enjulia-hehner-julia-150x150.jpeg',
page_url: 'https://research.pasteur.fr/en/member/julia-hehner/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 6177240509,
size: 0.5,
source: 6177,
target: 240509 });
//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: 240536,
label: 'Paul Courrieu',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2025/03/research_pasteur-enpaul-courrieu-20220819-230904-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/paul-courrieu/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 6177240536,
size: 0.5,
source: 6177,
target: 240536 });
//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: 241527,
label: 'Özmen Çobanoglu',
type: 'image',
url: 'https://research.pasteur.fr/wp-content/uploads/2025/04/research_pasteur-enozmen-cobanoglu-pic-2-150x150.jpg',
page_url: 'https://research.pasteur.fr/en/member/ozmen-cobanoglu/',
x: x_site,
y: y_site,
size: 10,
color: '#dddddd'
});
//link to content
g.edges.push({
id: 6177241527,
size: 0.5,
source: 6177,
target: 241527 });
//check if content already exist
// update node size depending on the amount of edges
g.nodes.forEach(function(n) {
if (n.id == 4171) {
n.size = n.size + 8;
}
});
//link to content
g.edges.push({
id: 61774171,
size: 0.5,
source: 6177,
target: 4171 });
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) {
});