From: Carl Worth <cworth@cworth.org>
Date: Thu, 7 Nov 2013 21:19:39 +0000 (-0800)
Subject: Fix 0.0 value on axis to be 0.0.
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;h=2c0f51b31a3f32c091ae04632f7d8e424f734577;hp=2c0f51b31a3f32c091ae04632f7d8e424f734577;p=acre

Fix 0.0 value on axis to be 0.0.

I recently saw cases where the %g format was cauing a value that
should be 0.0 on the axis to appear as something insane like 5.58e-17.

If the value is within a thousandth of a sub-step, (a sub-step is the
space between two minor ticks on the axis), of 0.0 then force it to be
truly 0.0.
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