toolkit/javascript/d3/src/scale/bilinear.js
author Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
Fri, 18 Apr 2014 14:31:58 +0200
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function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
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  var u = uninterpolate(domain[0], domain[1]),
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      i = interpolate(range[0], range[1]);
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  return function(x) {
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    return i(u(x));
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  };
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}