Pizza, with generative log spiral pepperoni layout! Made with D3.js.
Created
December 20, 2012 16:16
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Pizza!
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Pizza!</title> | |
| <style> | |
| .dough { | |
| fill: #E7AF37; | |
| } | |
| .sauce { | |
| fill: #BD3A2B; | |
| } | |
| .pepperoni { | |
| fill: #8C140F; | |
| stroke: #7C0400; | |
| stroke-width: 3; | |
| } | |
| .cheese { | |
| fill: #E9C288; | |
| } | |
| .slice { | |
| fill: none; | |
| stroke: black; | |
| stroke-width: 1; | |
| stroke-opacity: 0.2; | |
| } | |
| </style> | |
| <script src="//d3js.org/d3.v3.js"></script> | |
| </head> | |
| <body> | |
| <script> | |
| var width = 480, | |
| height = width, | |
| pepperonis = 80, | |
| slices = 8; | |
| var svg = d3.select("body") | |
| .append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("circle") | |
| .attr("class", "dough") | |
| .attr("r", width/2) | |
| .attr("transform", "translate("+width/2+","+height/2+")"); | |
| svg.append("circle") | |
| .attr("class", "sauce") | |
| .attr("r", width/2) | |
| .attr("transform", "translate("+width/2+","+height/2+") scale(0.9)"); | |
| svg.append("circle") | |
| .attr("class", "cheese") | |
| .attr("r", width/2) | |
| .attr("transform", "translate("+width/2+","+height/2+") scale(0.875)"); | |
| var angle = d3.scale.linear() | |
| .domain([0, slices]) | |
| .range([0, 360]); | |
| svg.selectAll(".slice") | |
| .data(d3.range(slices)) | |
| .enter().append("g") | |
| .attr("class", "slice") | |
| .attr("transform", function(d) { return "translate("+width/2+","+height/2+") rotate(" + -angle(d) + ")"; }) | |
| .append("line") | |
| .attr("x1", 0) | |
| .attr("x2", 0) | |
| .attr("y1", 0) | |
| .attr("y2", width/2) | |
| // Log spiral | |
| function Θ(r) { | |
| return (1/Θ.a) * Math.log(r+1/Θ.b); | |
| }; | |
| // Constants for log spiral function | |
| Θ.a = .045; | |
| Θ.b = .9; | |
| var r = d3.scale.linear() | |
| .domain([0, 2]) | |
| .range([0, d3.min([width, height])/2-40]); | |
| var c = d3.scale.linear() | |
| .domain([0, pepperonis]) | |
| .range([0, 2]); | |
| function spiralX(d) { | |
| return r(c(d)) * Math.cos(Θ(r(c(d)))); | |
| } | |
| function spiralY(d) { | |
| return r(c(d)) * Math.sin(Θ(r(c(d)))); | |
| } | |
| function update() { | |
| var pepperoni = svg.selectAll(".pepperoni") | |
| .data(d3.range(pepperonis)); | |
| pepperoni | |
| .enter().append("circle") | |
| .attr("class", "pepperoni") | |
| .attr("r", 16); | |
| pepperoni | |
| .attr("cx", spiralX) | |
| .attr("cy", spiralY) | |
| .attr("transform", "translate("+width/2+","+height/2+")"); | |
| pepperoni | |
| .exit().remove(); | |
| } | |
| var oscillate = d3.scale.linear() | |
| .domain([-1, 1]) | |
| .rangeRound([0, pepperonis]); | |
| update(); | |
| var i = 0; | |
| setInterval(function() { | |
| pepperonis = oscillate(Math.sin(i++/Math.PI)); | |
| update(); | |
| }, 166); | |
| </script> | |
| </body> | |
| </html> |
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