novus/nvd3 — pull request #165 by danramosd (2013-06-18 15:42:04+00:00)
Title: Bug Fix - Prevents tooltip from showing with Date data type in line charts

Tooltips do not work when using Date objects for X or Y values with line charts. The root of the problem comes from trying to add a "jitter" to these points. In firebug I receive the following warning:

`Unexpected value NaN parsing cx attribute.`

My fix checks for a Date type first before applying the jitter which removes the NaN warning and fixes the tooltip.

(Sorry for the large chunk of changes in this commit I couldn't figure out why git read the change this way. I only made changes to lines 10,031 - 10,035 )