Created
February 28, 2013 23:11
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Math
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
.sinline { | |
fill:none; | |
stroke:magenta; | |
} | |
.sinradiant { | |
fill:magenta; | |
} | |
.cosradiant { | |
fill:blue; | |
} | |
.connector { | |
fill:#888; | |
} | |
.cosline { | |
fill:none; | |
stroke:blue; | |
} | |
circle { | |
fill:none; | |
stroke:#888; | |
} | |
rect.radiant { | |
fill: steelblue; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<script> | |
var margin = {top: 20, right: 20, bottom: 60, left: 50}, | |
width = 640 - margin.left - margin.right, | |
height = 200 - margin.top - margin.bottom; | |
var parseDate = d3.time.format("%d-%b-%y").parse; | |
var x = d3.scale.linear() | |
.domain([0, 360]) | |
.range([0, width]); | |
var x2 = d3.scale.linear() | |
.domain([0, Math.PI * 2]) | |
.range([0, width]); | |
var y = d3.scale.linear() | |
.domain([1, -1]) | |
.range([height, 0]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.tickValues(d3.range(0, 8).map(function(d) { return d * 45; })) | |
.orient("bottom"); | |
var xAxis2 = d3.svg.axis() | |
.scale(x2) | |
.tickValues([0, Math.PI, Math.PI * 2]) | |
.tickFormat(function(d) { | |
return d ? Math.round(d / Math.PI) + 'π' : 0; | |
}) | |
.orient("bottom"); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.tickValues([-1, 0, 1]) | |
.orient("left"); | |
var d2r = Math.PI / 180; | |
var sinline = d3.range(0, 360).map(function(d) { | |
return [d, Math.sin(d * d2r)]; | |
}) | |
var cosline = d3.range(0, 360).map(function(d) { | |
return [d, Math.cos(d * d2r)]; | |
}) | |
var line = d3.svg.line() | |
.x(function(d) { return x(d[0]); }) | |
.y(function(d) { return y(d[1]); }) | |
var svg = d3.select("body").append("svg") | |
.attr("width", width + margin.left + margin.right) | |
.attr("height", height + margin.top + margin.bottom) | |
.append("g") | |
.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
svg.append("g") | |
.attr("class", "y axis") | |
.call(yAxis); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + (height + 20) + ")") | |
.call(xAxis2); | |
svg.append("path") | |
.attr('class', 'sinline') | |
.data([sinline]) | |
.attr("d", line); | |
svg.append("path") | |
.attr('class', 'cosline') | |
.data([cosline]) | |
.attr("d", line); | |
var r = height / 2; | |
var circle = svg.append("circle") | |
.attr('class', 'circ') | |
.attr("r", r); | |
var radiant = svg.append('rect') | |
.attr('class', 'radiant') | |
.attr('height', r) | |
.attr('width', 1); | |
var radiant2 = svg.append('rect') | |
.attr('class', 'radiant') | |
.attr('height', r) | |
.attr('width', 1); | |
var yradiant = svg.append('rect') | |
.attr('class', 'sinradiant') | |
.attr('height', 1) | |
.attr('width', width); | |
var xradiant = svg.append('rect') | |
.attr('class', 'cosradiant') | |
.attr('height', 1) | |
.attr('width', width); | |
var connector = svg.append('rect') | |
.attr('class', 'connector') | |
.attr('height', 1) | |
.attr('width', 1); | |
d3.select('body').on('mousemove', function() { | |
var ex = d3.event.x - r; | |
circle.attr('transform', function(d) { | |
return 'translate(' + [ex, r] + ')' | |
}); | |
radiant.attr('transform', function(d) { | |
return 'translate(' + [ex, r] + ') rotate(' + (x.invert(ex)) + ', 0, 0)' | |
}); | |
radiant2.attr('transform', function(d) { | |
return 'translate(' + [ex, r] + ') rotate(' + (x.invert(ex) - 90) + ', 0, 0)' | |
}); | |
var s = Math.sin(x.invert(ex) * d2r); | |
var c = Math.cos(x.invert(ex) * d2r); | |
yradiant.attr('transform', function(d) { | |
return 'translate(' + [0, y(s)] + ')' | |
}); | |
xradiant.attr('transform', function(d) { | |
return 'translate(' + [0, y(c)] + ')' | |
}); | |
connector | |
.attr('height', function(d) { | |
return Math.abs(y(s) - y(c)); | |
}) | |
.attr('transform', function(d) { | |
return 'translate(' + [ex, y( | |
Math.min(c, s) | |
)] + ')' | |
}); | |
}) | |
</script> |
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