<!DOCTYPE html>
<html>
<head>
<title>Superformula</title>
<script type="text/javascript" src="../../d3.js"></script>
<script type="text/javascript" src="superformula.js"></script>
<style type="text/css">
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>
</head>
<body>
<div id="controls"></div>
<script type="text/javascript">
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"),
scale = d3.scale.linear().domain([-10, 20, 1000]).range([0, 800, 1000]);
var svg = d3.select("body").append("svg:svg")
.attr("width", 960)
.attr("height", 500);
var shape = superformula()
.type("asterisk")
.size(100000)
.segments(3600);
var path = svg.append("svg: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("change", 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); });
var types = 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>
</body>
</html>