240 lines
7.5 KiB
HTML
Executable File
240 lines
7.5 KiB
HTML
Executable File
<!-- START SIGMA IMPORTS -->
|
|
<script src="../src/sigma.core.js"></script>
|
|
<script src="../src/conrad.js"></script>
|
|
<script src="../src/utils/sigma.utils.js"></script>
|
|
<script src="../src/utils/sigma.polyfills.js"></script>
|
|
<script src="../src/sigma.settings.js"></script>
|
|
<script src="../src/classes/sigma.classes.dispatcher.js"></script>
|
|
<script src="../src/classes/sigma.classes.configurable.js"></script>
|
|
<script src="../src/classes/sigma.classes.graph.js"></script>
|
|
<script src="../src/classes/sigma.classes.camera.js"></script>
|
|
<script src="../src/classes/sigma.classes.quad.js"></script>
|
|
<script src="../src/classes/sigma.classes.edgequad.js"></script>
|
|
<script src="../src/captors/sigma.captors.mouse.js"></script>
|
|
<script src="../src/captors/sigma.captors.touch.js"></script>
|
|
<script src="../src/renderers/sigma.renderers.canvas.js"></script>
|
|
<script src="../src/renderers/sigma.renderers.webgl.js"></script>
|
|
<script src="../src/renderers/sigma.renderers.svg.js"></script>
|
|
<script src="../src/renderers/sigma.renderers.def.js"></script>
|
|
<script src="../src/renderers/webgl/sigma.webgl.nodes.def.js"></script>
|
|
<script src="../src/renderers/webgl/sigma.webgl.nodes.fast.js"></script>
|
|
<script src="../src/renderers/webgl/sigma.webgl.edges.def.js"></script>
|
|
<script src="../src/renderers/webgl/sigma.webgl.edges.fast.js"></script>
|
|
<script src="../src/renderers/webgl/sigma.webgl.edges.arrow.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.labels.def.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.hovers.def.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.nodes.def.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edges.def.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edges.curve.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edges.arrow.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edges.curvedArrow.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.def.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.curve.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.arrow.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.curvedArrow.js"></script>
|
|
<script src="../src/renderers/canvas/sigma.canvas.extremities.def.js"></script>
|
|
<script src="../src/renderers/svg/sigma.svg.utils.js"></script>
|
|
<script src="../src/renderers/svg/sigma.svg.nodes.def.js"></script>
|
|
<script src="../src/renderers/svg/sigma.svg.edges.def.js"></script>
|
|
<script src="../src/renderers/svg/sigma.svg.edges.curve.js"></script>
|
|
<script src="../src/renderers/svg/sigma.svg.labels.def.js"></script>
|
|
<script src="../src/renderers/svg/sigma.svg.hovers.def.js"></script>
|
|
<script src="../src/middlewares/sigma.middlewares.rescale.js"></script>
|
|
<script src="../src/middlewares/sigma.middlewares.copy.js"></script>
|
|
<script src="../src/misc/sigma.misc.animation.js"></script>
|
|
<script src="../src/misc/sigma.misc.bindEvents.js"></script>
|
|
<script src="../src/misc/sigma.misc.bindDOMEvents.js"></script>
|
|
<script src="../src/misc/sigma.misc.drawHovers.js"></script>
|
|
<!-- END SIGMA IMPORTS -->
|
|
<div id="container">
|
|
<style>
|
|
#graph-container {
|
|
top: 0;
|
|
bottom: 0;
|
|
left: 0;
|
|
right: 0;
|
|
position: absolute;
|
|
}
|
|
</style>
|
|
<div id="graph-container"></div>
|
|
</div>
|
|
<script>
|
|
/**
|
|
* This is a basic example on how to develop a custom node renderer. In
|
|
* this example, the renderer will display an image clipped in a disc,
|
|
* with a border colored according the node's "color" value.
|
|
*
|
|
* If a node as the value "image" to its attribute "type", then it will
|
|
* displayed with the node renderer "sigma.canvas.nodes.image", with the
|
|
* url being its "url" value.
|
|
*
|
|
* IMPORTANT: This node renderer just works with the canvas renderer. If
|
|
* you do want to display images with the WebGL renderer, you will have
|
|
* to develop a specific WebGL node renderer.
|
|
*/
|
|
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 = size / 5;
|
|
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;
|
|
})();
|
|
|
|
// Now that's the renderer has been implemented, let's generate a graph
|
|
// to render:
|
|
var i,
|
|
s,
|
|
img,
|
|
N = 100,
|
|
E = 500,
|
|
g = {
|
|
nodes: [],
|
|
edges: []
|
|
},
|
|
urls = [
|
|
'img/img1.png',
|
|
'img/img2.png',
|
|
'img/img3.png',
|
|
'img/img4.png'
|
|
],
|
|
loaded = 0,
|
|
colors = [
|
|
'#617db4',
|
|
'#668f3c',
|
|
'#c6583e',
|
|
'#b956af'
|
|
];
|
|
|
|
// Generate a random graph, with ~30% nodes having the type "image":
|
|
for (i = 0; i < N; i++) {
|
|
img = Math.random() >= 0.7;
|
|
g.nodes.push({
|
|
id: 'n' + i,
|
|
label: 'Node ' + i,
|
|
type: img ? 'image' : 'def',
|
|
url: img ? urls[Math.floor(Math.random() * urls.length)] : null,
|
|
x: Math.random(),
|
|
y: Math.random(),
|
|
size: Math.random(),
|
|
color: colors[Math.floor(Math.random() * colors.length)]
|
|
});
|
|
}
|
|
|
|
for (i = 0; i < E; i++)
|
|
g.edges.push({
|
|
id: 'e' + i,
|
|
source: 'n' + (Math.random() * N | 0),
|
|
target: 'n' + (Math.random() * N | 0),
|
|
size: Math.random()
|
|
});
|
|
|
|
// Then, wait for all images to be loaded before instanciating sigma:
|
|
urls.forEach(function(url) {
|
|
sigma.canvas.nodes.image.cache(
|
|
url,
|
|
function() {
|
|
if (++loaded === urls.length)
|
|
// Instantiate sigma:
|
|
s = new sigma({
|
|
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-container'),
|
|
type: 'canvas'
|
|
},
|
|
settings: {
|
|
minNodeSize: 8,
|
|
maxNodeSize: 16,
|
|
}
|
|
});
|
|
}
|
|
);
|
|
});
|
|
</script>
|