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Last active September 3, 2015 00:35
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Chernoff Smileys
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README.md
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index.html
<!DOCTYPE html>
<html>
<head>
<title>Chernoff Smileys</title>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.3.0"></script>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?2.3.0"></script>
<style type="text/css">
body {
font: 10px sans-serif;
margin:0;
padding:0;
}
</style>
</head>
<body>
<p> Chernoff Smileys, click to generate a random face!
<script type="text/javascript">
//setup svg canvas
d3.select("body")
.append("svg:svg")
.attr("width", 960)
.attr("height", 450)
.attr("id", "charts")
.on("click", clickypie)
.append("svg:rect")
.attr("width", "100%")
.attr("height", "100%")
.attr("stroke", "#000")
.attr("stroke-width", 3)
.attr("fill", "none")
function face_factory(classname, data, x, y)
{
//data format
//{ "x": 0 - 1 , "y": 0 -1, "z": 0-1, "w":0-1 }
var r = 20 + data.w * 50;
var face = d3.select("#charts")
.append("svg:g")
//.data([data.sort(d3.descending)])
//.data([data])
.attr("class", classname)
.attr("transform", "translate(" + x + "," + y + ")");
console.log("make head");
var head_color = d3.scale.linear()
.domain([0, 1])
.interpolate(d3.interpolateRgb)
.range(["#ff0000", "#0000ff"]);
var head = face.append("svg:circle")
.attr("class", "head")
.attr("fill", function(d){ return head_color(data.x); })
.attr("fill-opacity", .8)
.attr("stroke", "#000")
.attr("stroke-width", 4)
.attr("r", r);
console.log("make mouth");
var mouth_x = [0, .5, 1];
var mouth_x_range = d3.scale.linear()
.domain([0, 1])
.range([-r/2, r/2]);
var mouth_y_range = d3.scale.linear()
.domain([0, 1])
.range([-r/2, r/2]);
var mouth_y = [.5, data.y, .5];
console.log(mouth_y)
var mouth_line = d3.svg.line()
.x(function(d,i) {
return mouth_x_range(mouth_x[i]);
})
.y(function(d,i) {
return mouth_y_range(mouth_y[i]);
})
.interpolate("basis");
var mouth = face.append("svg:path")
.attr("class", "mouth")
.attr("stroke", "#000")
.attr("stroke-width", 4)
.attr("fill", "none")
.attr("transform", "translate(" + [0, r/3] + ")")
.attr("d", mouth_line(mouth_x));
console.log("create eyes")
var eyer = r/10 + data.z * (r/3);
console.log(eyer);
var left_eye = face.append("svg:circle")
.attr("class", "eyes")
.attr("stroke", "#000")
.attr("fill", "none")
.attr("stroke-width", 4)
.attr("transform", "translate(" + [-r/2.5, -r/3] + ")")
.attr("r", eyer);
//eyer = r/10 + data.w * (r/3);
var right_eye = face.append("svg:circle")
.attr("class", "eyes")
.attr("stroke", "#000")
.attr("fill", "none")
.attr("stroke-width", 4)
.attr("transform", "translate(" + [r/2.5, -r/3] + ")")
.attr("r", eyer);
}
count = 0
function clickypie()
{
count += 1;
var xy = d3.svg.mouse(this);
//var r = 20 + Math.random() * 50;
//var r = 70;
//var data = d3.range(10).map(Math.random)
var data = { "x":Math.random(), "y":Math.random(), "z":Math.random(), "w":Math.random() };
face_factory("face"+count, data, xy[0], xy[1]);
};
var data = { "x":Math.random(), "y":Math.random(), "z":Math.random(), "w":Math.random() };
face_factory("face"+count, data, Math.random() * 960, Math.random() * 500);
var data = { "x":Math.random(), "y":Math.random(), "z":Math.random(), "w":Math.random() };
face_factory("face"+count, data, Math.random() * 960, Math.random() * 500);
</script>
</body>
</html>
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