better colorization of heatmap

Use `interpolateHcl` because that's hella easy.

better colorization of heatmap
Use `interpolateHcl` because that's hella easy.
2afdb628 · Randall Leeds · 6167eb22 · 2afdb628
Commit 2afdb628 authored Apr 16, 2013 by Randall Leeds
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Showing with 4 additions and 5 deletions

heatmap.coffee h/js/plugin/heatmap.coffee +4 -5

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--- a/h/js/plugin/heatmap.coffee
+++ b/h/js/plugin/heatmap.coffee
@@ -43,11 +43,10 @@ class Annotator.Plugin.Heatmap extends Annotator.Plugin

  _colorize: (v) ->
    c = d3.scale.pow().exponent(2)
-      .range([0, 10])
-    l = d3.scale.pow().exponent(.5)
    .domain([0, 1])
-      .range([100, 50])
-    d3.hcl(270, c(v), l(v)).toString()
+    .range(['powderblue', 'darkblue'])
+    .interpolate(d3.interpolateHcl)
+    c(v).toString()

  updateHeatmap: (data) =>
    return unless d3?