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forked from sxywu's block: DS July: Code 1
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DS July: Code 2
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| license: gpl-3.0 |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.13.1/lodash.js'></script> | |
| <style> | |
| svg { | |
| width: 900px; | |
| height: 900px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg> | |
| </svg> | |
| <script> | |
| var padding = 20; | |
| var svg = d3.select('svg') | |
| .append('g') | |
| .attr('transform', 'translate(' + [padding, padding] + ')'); | |
| var flowerSize = 300; | |
| var numPetals = 6; | |
| var petalPaths = [[ | |
| 'M0,0', | |
| "C50,50 50,100 0,100", | |
| "C-50,100 -50,50 0,0" | |
| ], | |
| [ | |
| 'M-35,0', | |
| 'C-25,25 25,25 35,0', | |
| 'C50,25 25,75 0,100', | |
| 'C-25,75 -50,25 -35,0' | |
| ], | |
| [ | |
| 'M0,0', | |
| 'C50,40 50,70 20,100', | |
| 'L0,85', | |
| 'L-20,100', | |
| 'C-50,70 -50,40 0,0' | |
| ], | |
| [ | |
| 'M0,0', | |
| 'C50,25 50,75 0,100', | |
| 'C-50,75 -50,25 0,0' | |
| ]]; | |
| var flowers = svg.selectAll('g.flower') | |
| .data(petalPaths).enter().append('g') | |
| .classed('flower', true) | |
| .attr('transform', function(d, i) { | |
| var x = (i % 2) * flowerSize; | |
| var y = Math.floor(i / 2) * flowerSize; | |
| return 'translate(' + x + ',' + y + ')'; | |
| }); | |
| flowers.selectAll('path') | |
| .data(function(d) { | |
| // for each flower, draw the petal 6 times | |
| return _.times(numPetals, function(i) { | |
| return { | |
| angle: (360/numPetals) * i, | |
| d: d | |
| } | |
| }); | |
| }).enter().append('path') | |
| .attr('stroke', '#000') | |
| .attr('stroke-width', 2) | |
| .attr('fill', 'none') | |
| .attr('d', function(d) {return d.d}) | |
| .attr('transform', function(d) { | |
| var cx = flowerSize / 2; | |
| var cy = flowerSize / 2; | |
| return 'translate(' + [cx, cy] + | |
| ')rotate(' + [d.angle] + ')'; | |
| }); | |
| </script> | |
| </body> |
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