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- <!DOCTYPE html>
- <meta charset="utf-8">
- <title>Superformula</title>
- <style>
- path {
- stroke-width: 1.5px;
- stroke: #666;
- fill: #ddd;
- }
- #controls {
- position: absolute;
- width: 240px;
- font: 10px sans-serif;
- }
- #controls span,
- #controls label {
- position: relative;
- top: -5px;
- padding: 5px;
- display: inline-block;
- width: 20px;
- }
- #controls button {
- font: 10px sans-serif;
- padding: 5px;
- width: 70px;
- }
- </style>
- <div id="controls"></div>
- <script src="//d3js.org/d3.v3.min.js"></script>
- <script src="superformula.js"></script>
- <script>
- var types = {
- asterisk: {m: 12, n1: .3, n2: 0, n3: 10, a: 1, b: 1},
- bean: {m: 2, n1: 1, n2: 4, n3: 8, a: 1, b: 1},
- butterfly: {m: 3, n1: 1, n2: 6, n3: 2, a: .6, b: 1},
- circle: {m: 4, n1: 2, n2: 2, n3: 2, a: 1, b: 1},
- clover: {m: 6, n1: .3, n2: 0, n3: 10, a: 1, b: 1},
- cloverFour: {m: 8, n1: 10, n2: -1, n3: -8, a: 1, b: 1},
- cross: {m: 8, n1: 1.3, n2: .01, n3: 8, a: 1, b: 1},
- diamond: {m: 4, n1: 1, n2: 1, n3: 1, a: 1, b: 1},
- drop: {m: 1, n1: .5, n2: .5, n3: .5, a: 1, b: 1},
- ellipse: {m: 4, n1: 2, n2: 2, n3: 2, a: 9, b: 6},
- gear: {m: 19, n1: 100, n2: 50, n3: 50, a: 1, b: 1},
- heart: {m: 1, n1: .8, n2: 1, n3: -8, a: 1, b: .18},
- heptagon: {m: 7, n1: 1000, n2: 400, n3: 400, a: 1, b: 1},
- hexagon: {m: 6, n1: 1000, n2: 400, n3: 400, a: 1, b: 1},
- malteseCross: {m: 8, n1: .9, n2: .1, n3: 100, a: 1, b: 1},
- pentagon: {m: 5, n1: 1000, n2: 600, n3: 600, a: 1, b: 1},
- rectangle: {m: 4, n1: 100, n2: 100, n3: 100, a: 2, b: 1},
- roundedStar: {m: 5, n1: 2, n2: 7, n3: 7, a: 1, b: 1},
- square: {m: 4, n1: 100, n2: 100, n3: 100, a: 1, b: 1},
- star: {m: 5, n1: 30, n2: 100, n3: 100, a: 1, b: 1},
- triangle: {m: 3, n1: 100, n2: 200, n3: 200, a: 1, b: 1}
- };
- var format = d3.format(".4n");
- var scale = d3.scale.linear()
- .domain([-10, 20, 1000])
- .range([0, 800, 1000]);
- var svg = d3.select("body")
- .append("svg")
- .attr("width", 960)
- .attr("height", 500);
- var shape = d3.superformula()
- .type("asterisk")
- .size(100000)
- .segments(3600);
- var path = svg.append("path")
- .attr("class", "big")
- .attr("transform", "translate(480,250)")
- .attr("d", shape);
- var control = d3.select("#controls")
- .selectAll("div")
- .data(d3.entries(types.asterisk))
- .enter().append("div")
- .attr("id", function(d) { return d.key; });
- control.append("label")
- .text(function(d) { return d.key; });
- control.append("input")
- .attr("type", "range")
- .attr("max", 1000)
- .attr("min", 0)
- .property("value", function(d) { return scale(d.value); })
- .on("input", function(d) {
- var v = scale.invert(this.value);
- path.attr("d", shape.param(d.key, v));
- d3.select(this.nextSibling).text(format(v));
- });
- control.append("span")
- .text(function(d) { return format(d.value); });
- d3.select("#controls")
- .append("div")
- .selectAll("button")
- .data(d3.entries(types))
- .enter().append("button")
- .text(function(d) { return d.key; })
- .on("click", function(d) {
- for (var param in d.value) {
- var control = d3.select("#" + param);
- control.select("input").property("value", scale(d.value[param]));
- control.select("span").text(format(d.value[param]));
- shape.param(param, d.value[param]);
- }
- path.attr("d", shape);
- });
- </script>
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