From: Michael Orlitzky <michael@orlitzky.com>
Date: Fri, 2 Sep 2011 13:13:55 +0000 (-0400)
Subject: Add another guard on calculate_containing_cube_coordinate.
X-Git-Tag: 0.0.1~182
X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=29ffefd3c892f38eee96fdd672ceab4d0454cd90;p=spline3.git

Add another guard on calculate_containing_cube_coordinate.
---

diff --git a/src/Grid.hs b/src/Grid.hs
index 8bf8382..7325d2b 100644
--- a/src/Grid.hs
+++ b/src/Grid.hs
@@ -96,6 +96,7 @@ calculate_containing_cube_coordinate g coord
     -- returns cube #1 if we would have returned cube #0 and cube #1
     -- exists.
     | coord == offset && (xsize > 0 && ysize > 0 && zsize > 0) = 1
+    | coord < offset = 0
     | otherwise = (ceiling ( (coord + offset) / cube_width )) - 1
     where
       (xsize, ysize, zsize) = dims (function_values g)