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February 18, 2016 01:55
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Testing data join pattern
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| <!DOCTYPE html> | |
| <script src="//d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <style media="screen"> | |
| .child { | |
| margin: 10px 0; | |
| color: white; | |
| } | |
| button { | |
| margin-right: 5px; | |
| } | |
| </style> | |
| <button class="first">First Data</button> | |
| <button class="second">Second Data</button> | |
| <div class="stage"></div> | |
| <script> | |
| var data = [ | |
| ["red", "blue", "green"], | |
| ["red", "blue", "orange", "magenta"] | |
| ]; | |
| var size = 100; | |
| function render(data) { | |
| var stage = d3.select(".stage"); | |
| var div = stage.selectAll(".group").data(data), | |
| divExit = div.exit().transition().style("opacity", 0).remove(), | |
| divEnter = div.enter().append("div").attr("class", "group"), | |
| divUpdate = div.style("color", function(d) { return d; }); | |
| var childEnter = divEnter.append("div") | |
| .attr("class", "child") | |
| .style("opacity", 1e-6) | |
| .style("width", size + "px"), | |
| childUpdate = divUpdate.select(".child") | |
| .transition().duration(1000) | |
| .style("opacity", 1) | |
| .style("background", function(d) { return d; }) | |
| .style("width", size + "px"); | |
| childEnter.append("button").text("boom") | |
| childEnter.append("span").text(function(d) { return d; }) | |
| } | |
| d3.select(".first").on("click", function() { | |
| size = 200; | |
| render(data[0]); | |
| }); | |
| d3.select(".second").on("click", function() { | |
| size = 300; | |
| render(data[1]); | |
| }); | |
| render(data[0]); | |
| </script> |
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