From: ehofman <ehofman>
Date: Sun, 1 May 2005 08:50:39 +0000 (+0000)
Subject: Phil Cazzola:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=dea7b9050dfc4ae3807213400656996fefc7f60d;hp=dea7b9050dfc4ae3807213400656996fefc7f60d;p=simgear.git

Phil Cazzola:

This is a minor bug fix for sgBucketDiff().
If you crossed the bucket size boundary, the answer for dx could be wrong.

E.g.
 going from   0:0, 21:7  to 0:7, 21:7   would give you dx = 7 (correct)
 but going from 0:0, 21:7 to 0:3, 22:0 would give you dx = 6 (instead of 7)

Previously it differenced the center longitudes of the buckets.  When you
cross a boundary, the center point of the larger bucket now lies on the edge of the smaller bucket.

The result was a dx with an integer + 1/2 bucket, which rint() was rounding to the nearest even int.

This function only seems to be used in TerraGear.
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