mbostock/d3 — Issue #582: Support rgba interpolation
Author: jasondavies
Created: 2012-03-05 13:04:02+00:00
State: open

The default string interpolation results in floating-point values; it might be simple enough to extend d3.rgb to handle an alpha component too.

The spec mentions that [integers should be used](http://www.w3.org/TR/css3-color/#rgba-color).

See also: [this thread](https://groups.google.com/group/d3-js/browse_thread/thread/5766df1568fb0a08).