toolkit/javascript/d3/examples/touch/touch.html
changeset 47 c0b4a8b5a012
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/examples/touch/touch.html	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta name="viewport" content="initial-scale=1,maximum-scale=1"/>
+    <script type="text/javascript" src="../../d3.js"></script>
+    <style type="text/css">
+
+html, body {
+  height: 100%;
+}
+
+body {
+  margin: 0;
+}
+
+svg {
+  display: block;
+  overflow: hidden;
+  width: 100%;
+  height: 100%;
+}
+
+    </style>
+  </head>
+  <body>
+    <script type="text/javascript">
+
+var color = d3.scale.category10();
+
+var svg = d3.select("body").append("svg:svg");
+
+d3.select("body")
+    .on("touchstart", touch)
+    .on("touchmove", touch)
+    .on("touchend", touch);
+
+function touch() {
+  d3.event.preventDefault();
+
+  var circle = svg.selectAll("circle.touch")
+      .data(d3.svg.touches(svg.node()), function(d) { return d.identifier; })
+      .attr("cx", function(d) { return d[0]; })
+      .attr("cy", function(d) { return d[1]; });
+
+  circle.enter().append("svg:circle")
+      .attr("class", "touch")
+      .attr("cx", function(d) { return d[0]; })
+      .attr("cy", function(d) { return d[1]; })
+      .style("fill", function(d) { return color(d.identifier); })
+      .attr("r", 1e-6)
+    .transition()
+      .duration(500)
+      .ease("elastic")
+      .attr("r", 48);
+
+  circle.exit()
+      .attr("class", null)
+    .transition()
+      .attr("r", 1e-6)
+      .remove();
+}
+
+    </script>
+  </body>
+</html>