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vpascual/.blocks

Last active February 26, 2017 19:03
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SVG circles on mouse position fading away
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.blocks
license: gpl-3.0
Raw
README.md

Basic example showing how to generate SVG cirscles at mouse position that fade out using D3 transitions.

Raw
index.html
<!doctype html>
<html>
<head>
<script src="https://d3js.org/d3.v4.min.js" type="text/Javascript"></script>
<style>
#viz {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<div id="viz"></div>
<script>
var width = window.innerWidth;
var height = window.innerHeight;
var svg = d3.select("#viz").append("svg")
.attr("width", width)
.attr("height", height)
.style("border", "1px solid #ccc");
svg.on("mousemove", d => {
var div = d3.select("#viz");
var coordinates = d3.mouse(div.node());
svg.append("circle")
.attr("cx", coordinates[0])
.attr("cy", coordinates[1])
.attr("r", 5)
.style("fill", "none")
.style("stroke", "gray")
.style("stroke-width", 1)
.transition()
.duration(2000)
.ease(d3.easeLinear)
.attr("r", 50)
.style("opacity", 0)
.remove();
});
</script>
</body>
</html>
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