66 строки
1.3 KiB
HTML
66 строки
1.3 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="initial-scale=1,maximum-scale=1"/>
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<script type="text/javascript" src="../../d3.js"></script>
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<style type="text/css">
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html, body {
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height: 100%;
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}
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body {
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margin: 0;
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}
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svg {
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display: block;
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overflow: hidden;
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width: 100%;
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height: 100%;
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}
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</style>
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</head>
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<body>
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<script type="text/javascript">
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var color = d3.scale.category10();
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var svg = d3.select("body").append("svg:svg");
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d3.select("body")
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.on("touchstart", touch)
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.on("touchmove", touch)
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.on("touchend", touch);
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function touch() {
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d3.event.preventDefault();
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var circle = svg.selectAll("circle.touch")
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.data(d3.svg.touches(svg.node()), function(d) { return d.identifier; })
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.attr("cx", function(d) { return d[0]; })
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.attr("cy", function(d) { return d[1]; });
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circle.enter().append("svg:circle")
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.attr("class", "touch")
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.attr("cx", function(d) { return d[0]; })
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.attr("cy", function(d) { return d[1]; })
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.style("fill", function(d) { return color(d.identifier); })
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.attr("r", 1e-6)
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.transition()
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.duration(500)
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.ease("elastic")
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.attr("r", 48);
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circle.exit()
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.attr("class", null)
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.transition()
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.attr("r", 1e-6)
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.remove();
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}
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</script>
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</body>
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</html>
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