D3 2.5.0 supports matrix decomposition for animating 2D transforms. Any SVG transform attribute is decomposed into a canonical representation of translate, rotate, scale and skew. This allows two arbitrary transforms of different types to be transitioned smoothly—say from a simple translate to a scale plus rotate. These features are supported automatically by your browser for CSS3 transitions, but now you can have them in JavaScript for SVG, too!
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Color grid example of d3.js animated transformations
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>Transform Transitions</title> | |
| <style> | |
| body { | |
| margin: 0; | |
| } | |
| rect { | |
| stroke: #fff; | |
| stroke-width: .1px; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var w = 960, | |
| h = 500, | |
| z = 20, | |
| x = w / z, | |
| y = h / z; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", w) | |
| .attr("height", h); | |
| svg.selectAll("rect") | |
| .data(d3.range(x * y)) | |
| .enter().append("rect") | |
| .attr("transform", translate) | |
| .attr("width", z) | |
| .attr("height", z) | |
| .style("fill", function(d) { return d3.hsl(d % x / x * 360, 1, Math.floor(d / x) / y); }) | |
| .on("mouseover", mouseover); | |
| function translate(d) { | |
| return "translate(" + (d % x) * z + "," + Math.floor(d / x) * z + ")"; | |
| } | |
| function mouseover(d) { | |
| this.parentNode.appendChild(this); | |
| d3.select(this) | |
| .style("pointer-events", "none") | |
| .transition() | |
| .duration(750) | |
| .attr("transform", "translate(480,480)scale(23)rotate(180)") | |
| .transition() | |
| .delay(1500) | |
| .attr("transform", "translate(240,240)scale(0)") | |
| .style("fill-opacity", 0) | |
| .remove(); | |
| } | |
| </script> |
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