Created
January 30, 2012 17:47
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Transition a circle between a series of points
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?1.27.1"></script> | |
| </head> | |
| <body> | |
| <div id='vis'></div> | |
| <script type="text/javascript"> | |
| var circle, h, j, points, svg, transition, w, x, y; | |
| w = 500; | |
| h = 500; | |
| svg = d3.select('#vis').append('svg').attr('width', w).attr('height', h); | |
| points = [[1, 1], [2, 5], [9, 9], [5, 5], [7, 4], [1, 9]]; | |
| x = d3.scale.linear().domain([0, 10]).range([0, w]); | |
| y = d3.scale.linear().domain([0, 10]).range([0, h]); | |
| circle = svg.append('svg:circle').attr('r', 10); | |
| j = 0; | |
| transition = function() { | |
| return circle.transition().duration(500).attrTween("transform", function(d, i, a) { | |
| var interpolater; | |
| interpolater = d3.interpolateArray(points[j], points[j + 1]); | |
| return function(t) { | |
| var b, _ref; | |
| _ref = interpolater(t), a = _ref[0], b = _ref[1]; | |
| return "translate(" + x(a) + "," + y(b) + ")"; | |
| }; | |
| }).each('end', function() { | |
| j += 1; | |
| if (!(j + 2 > points.length)) return transition(); | |
| }); | |
| }; | |
| transition(); | |
| </script> | |
| </body> | |
| </html> |
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