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demo.html
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<!DOCTYPE>
<html>
<head>
<title>cytoscape-svg.js demo</title>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1">
<script src="https://unpkg.com/cytoscape/dist/cytoscape.min.js"></script>
<script src="https://unpkg.com/[email protected]/FileSaver.js"></script>
<script src="https://unpkg.com/jspdf@latest/dist/jspdf.umd.min.js"></script>
<script src="https://rawgit.com/yWorks/svg2pdf.js/master/dist/svg2pdf.umd.js"></script>
<!-- for testing with local version of cytoscape.js -->
<!--<script src="../cytoscape.js/build/cytoscape.js"></script>-->
<script src="cytoscape-svg.js"></script>
<style>
body {
font-family: helvetica neue, helvetica, liberation sans, arial, sans-serif;
font-size: 14px;
}
#cy {
position: absolute;
left: 0;
top: 80px;
bottom: 0;
right: 0;
z-index: 999;
background-color: #ffff00;
}
h1 {
opacity: 0.5;
font-size: 1em;
font-weight: bold;
}
</style>
<script>
document.addEventListener('DOMContentLoaded', function(){
var cy = window.cy = cytoscape({
container: document.getElementById('cy'),
style: [
{
selector: 'node',
style: {
'content': 'data(name)'
}
},
{
selector: 'edge',
style: {
'curve-style': 'bezier',
'target-arrow-shape': 'triangle'
}
},
{
'selector': 'edge',
'css':
{
'z-compound-depth': 'bottom',
'width': 2.0,
'edge-text-rotation': 'autorotate',
'label': function(edge)
{
return "label";
},
}
}
],
elements: {
nodes: [
{ data: { id: 'j', name: 'Jerry' } },
{ data: { id: 'e', name: 'Elaine' } },
{ data: { id: 'k', name: 'Kramer' } },
{ data: { id: 'g', name: 'George' } }
],
edges: [
{ data: { source: 'j', target: 'e' } },
{ data: { source: 'j', target: 'k' } },
{ data: { source: 'j', target: 'g' } },
{ data: { source: 'e', target: 'j' } },
{ data: { source: 'e', target: 'k' } },
{ data: { source: 'k', target: 'j' } },
{ data: { source: 'k', target: 'e' } },
{ data: { source: 'k', target: 'g' } },
{ data: { source: 'g', target: 'j' } }
]
}
});
});
var saveAsSvg = function(filename) {
var svgContent = cy.svg({scale: 1, full: true, bg: '#ffff00'});
var blob = new Blob([svgContent], {type:"image/svg+xml;charset=utf-8"});
saveAs(blob, "demo.svg");
};
var getSvgUrl = function() {
var svgContent = cy.svg({scale: 1, full: true, bg: '#ffff00'});
var blob = new Blob([svgContent], {type:"image/svg+xml;charset=utf-8"});
var url = URL.createObjectURL(blob);
return url;
};
const saveAsPdf = function(filename) {
const width = cy.width() * 1.1;
const height = cy.height() * 1.1;
const pdf = new jspdf.jsPDF("p","pt", [width, height]);
const container = document.createElement('div');
container.innerHTML = cy.svg();
pdf.svg(container.firstChild).then(() => {
pdf.save(filename, {width, height});
});
};
</script>
</head>
<body>
<h1>cytoscape-svg demo</h1>
<button style="color: white; background-color: #008CBA; width: 100px; height: 30px;" onclick="saveAsSvg()">Save as SVG</button>
<button style="color: white; background-color: #ff0000; width: 100px; height: 30px;" onclick="window.location=getSvgUrl()">View SVG</button>
<button style="color: white; background-color: #00FFBA; width: 100px; height: 30px;" onclick="saveAsPdf('demo.pdf')">Save as PDF</button>
<div id="cy"></div>
</body>
</html>