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<html> |
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<head> |
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<title>Cars</title> |
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<link type="text/css" href="../ex.css" rel="stylesheet"/> |
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<script type="text/javascript" src="../../protovis-r3.3.js"></script> |
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<script type="text/javascript" src="cars.js"></script> |
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<style type="text/css"> |
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|
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#fig { |
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width: 880px; |
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height: 460px; |
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} |
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|
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#title { |
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position: absolute; |
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top: 70px; |
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left: 200px; |
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padding: 10px; |
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background: white; |
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} |
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|
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large { |
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font-size: medium; |
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} |
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|
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</style> |
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</head> |
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<body><div id="center"><div id="fig"> |
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<script type="text/javascript+protovis"> |
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|
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/* The dimensions to visualize, in order. */ |
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var dims = [ |
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"cylinders", |
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"displacement", |
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"weight", |
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"horsepower", |
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"acceleration", |
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"mpg", |
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"year", |
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"origin" |
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]; |
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|
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/* Sizing and scales. */ |
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var w = 840, |
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h = 420, |
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color = pv.Colors.category10(), |
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x = pv.Scale.ordinal(dims).splitFlush(0, w), |
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y = pv.dict(dims, function(t) pv.Scale.linear() |
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.domain(cars.filter(function(d) !isNaN(d[t])), function(d) d[t]) |
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.range(0, h)); |
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|
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/* The root panel. */ |
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var vis = new pv.Panel() |
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.width(w) |
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.height(h) |
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.margin(20) |
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.bottom(40); |
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|
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/* Rule and labels per dimension. */ |
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var rule = vis.add(pv.Rule) |
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.data(dims) |
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.left(x) |
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.strokeStyle(color.by(pv.index)) |
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.lineWidth(2); |
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|
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rule.anchor("top").add(pv.Label) |
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.text(function(t) y[t].domain()[0]); |
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|
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rule.anchor("bottom").add(pv.Label) |
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.text(function(t) y[t].domain()[1]); |
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|
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rule.anchor("bottom").add(pv.Label) |
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.textStyle(function() color(this.index).darker()) |
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.textMargin(14); |
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|
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/* Parallel coordinates. */ |
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vis.add(pv.Panel) |
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.data(cars) |
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.add(pv.Line) |
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.data(dims) |
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.left(function(t, d) x(t)) |
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.bottom(function(t, d) y[t](d[t])) |
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.strokeStyle("rgba(0, 0, 0, .2)") |
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.lineWidth(1); |
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|
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vis.render(); |
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|
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</script> |
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</div></div></body> |
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</html> |
