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August 30, 2016 03:11
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svg voroni spiral
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| <!DOCTYPE html> | |
| <meta charset='utf-8'> | |
| <style> | |
| body{ | |
| margin: 0px; | |
| } | |
| path{ | |
| stroke: black; | |
| fill: none; | |
| } | |
| </style> | |
| <body> | |
| <script src='/1wheel/raw/67b47524ed8ed829d021/d3-3.5.5.js'></script> | |
| <script src='/1wheel/raw/1b6758978dc2d52d3a37/d3-jetpack.js'></script> | |
| <script src='/1wheel/raw/1b6758978dc2d52d3a37/d3-starterkit.js'></script> | |
| <script src='voroni-spiral.js'></script> |
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| var width = 960, | |
| height = 500; | |
| var vertices = d3.range(40).map(function(d) { | |
| return [Math.random() * width, Math.random() * height]; | |
| }) | |
| var voronoi = d3.geom.voronoi() | |
| .clipExtent([[0, 0], [width, height]]) | |
| var polygons = voronoi(vertices) | |
| var svg = d3.select('body').append('svg') | |
| .attr('width', width) | |
| .attr('height', height) | |
| svg.dataAppend(polygons, 'path') | |
| .attr('d', function(d){ return 'M' + d.join('L') + 'Z' }) | |
| polygons.forEach(drawSpiral) | |
| // drawSpiral(polygons[0]) | |
| function drawSpiral(polygon){ | |
| var duration = 100 | |
| var points = polygon.slice() | |
| setInterval(function(){ | |
| var curPoint = points.shift() | |
| var nextPoint = points[0] | |
| svg.append('path') | |
| .attr('d', ['M', curPoint, 'L', curPoint].join(' ')) | |
| // .transition().duration(duration) | |
| .attr('d', ['M', curPoint, 'L', nextPoint].join(' ')) | |
| var percent = .1 //+ points.length/30 | |
| points.push([ | |
| curPoint[0]*(1 - percent) + nextPoint[0]*percent, | |
| curPoint[1]*(1 - percent) + nextPoint[1]*percent]) | |
| }, duration) | |
| } |
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