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demo.html
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<!DOCTYPE>
<html>
<title>cytoscape-effective-area.js demo</title>
<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="./index.js"></script>
<style>
html {
font-size: 10px;
}
body {
display: flex;
font-size: 1.4rem;
margin: 0;
padding: 0;
}
#header {
color: #aabbcc;
flex: 0 0 300px;
padding: 2em;
filter: drop-shadow(2px 0 4px rgba(0, 0, 0, 0.12));
background: #333;
}
#header a {
color: inherit;
text-decoration: none;
}
#header a:hover {
text-decoration: underline;
}
#header h1 {
font-size: 1.8rem;
}
#header h2 {
font-size: 1.2rem;
color: gray;
}
#cy {
position: relative;
flex: 1 1 auto;
}
#effective-area {
position: absolute;
left: 30px;
top: 90px;
width: 400px;
height: 500px;
pointer-events: none;
box-sizing: border-box;
border: 5px solid red;
z-index: 9999;
}
</style>
<body>
<header id="header">
<a href="https://github.com/lambdalisue/cytoscape-effective-area">
<h1>cytoscape-effective-area</h1>
<h2>lambdalisue/cytoscape-effective-area</h2>
</a>
<p>Press "Fit" or "Center" button with/without an effective area</p>
<p>
<label>
<input id="effective-area-check" type="checkbox" checked/>
Enable an effective area
</label>
</p>
<p>
<button id="fit-button" type="button">Fit</button>
<button id="center-button" type="button">Center</button>
</p>
</header>
<div id="cy">
<div id="effective-area"/>
</div>
<script>
document.addEventListener('DOMContentLoaded', function(){
var cy = window.cy = cytoscape({
container: document.getElementById('cy'),
style: [
{
selector: 'node',
style: {
'content': 'data(name)'
}
},
{
selector: 'node.effective-areaed',
style: {
'overlay-color': 'red',
'overlay-padding': '5px',
'overlay-opacity': 0.5,
}
},
{
selector: 'edge',
style: {
'curve-style': 'bezier',
'target-arrow-shape': 'triangle'
}
}
],
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 effectiveArea = {
x: 30,
y: 90,
width: 400,
height: 500,
};
var ea = cy.effectiveArea(function() {
return effectiveArea;
});
document.getElementById('fit-button').addEventListener('click', function() {
cy.fit();
});
document.getElementById('center-button').addEventListener('click', function() {
cy.center();
});
document.getElementById('effective-area-check').addEventListener('change', function(e) {
if (e.target.checked) {
ea.enable(function() {
return effectiveArea;
});
} else {
ea.disable();
}
});
});
</script>
</body>
</html>