Created
November 22, 2016 17:35
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shellsort voronoi
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| path { stroke: none; } | |
| </style> | |
| <svg width="960" height="500"></svg> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var svg = d3.select('svg') | |
| var w = +svg.attr('width') | |
| var h = +svg.attr('height') | |
| var n = 256 | |
| var data = d3.range(n) | |
| var x = d3.scaleLinear().domain([0, n]).range([0, w]) | |
| var y = d3.scaleLinear().domain([0, n]).range([0, h]) | |
| var z = d3.scaleSequential(d3.interpolateRainbow).domain([0, n]) | |
| var g = svg.append('g') | |
| var voronoi = d3.voronoi() | |
| .x(x) | |
| .y(function (d, i) { return y(i) }) | |
| .extent([[x(0), y(0)], [x(n), y(n)]]) | |
| function* sort () { | |
| var t = [701, 301, 132, 57, 23, 10, 4, 1] | |
| //t = [5, 3, 1] | |
| for (var k = 0; k < t.length; ++k) { | |
| var h = t[k]; console.log(h) | |
| for (var j = h; j < n; ++j) { | |
| var i = j - h, r = data[j], t, done = false | |
| while (i > -1 && !done) { | |
| if (r < data[i]) { | |
| yield data | |
| ;[data[i+h], data[i]] = [data[i], data[i+h]] | |
| i -= h | |
| } else { | |
| done = true | |
| } | |
| } | |
| data[i+h] = r | |
| } | |
| } | |
| } | |
| var gen | |
| function reset() { | |
| d3.shuffle(data) | |
| gen = sort() | |
| } | |
| reset() | |
| d3.timer(function () { | |
| var v | |
| if ((v = gen.next()).done) { | |
| reset() | |
| return | |
| } | |
| var diagram = voronoi(v.value) | |
| var poly = g.selectAll('path').data(diagram.polygons()) | |
| poly.enter().append('path') | |
| .merge(poly) | |
| .attr('d', function (d) { return d ? 'M' + d.join('L') + 'Z' : null }) | |
| .attr('fill', function (d) { return z(d.data) }) | |
| //.classed('highlight', function (d) { return v.value.indexOf(d.data) !== -1 }) | |
| poly.exit().remove() | |
| }) | |
| </script> |
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