[brlcad-commits] SF.net SVN: brlcad:[53796] brlcad/trunk/src/libged/translate_tgc.c

[<bo...@us...>]

Revision: 53796
          http://brlcad.svn.sourceforge.net/brlcad/?rev=53796&view=rev
Author:   bob1961
Date:     2012-11-21 16:25:22 +0000 (Wed, 21 Nov 2012)
Log Message:
-----------
Update _ged_translate_tgc() to move H while maintaining perpendicularity among H, A and B without the random flipping of vectors.

Modified Paths:
--------------
    brlcad/trunk/src/libged/translate_tgc.c

Modified: brlcad/trunk/src/libged/translate_tgc.c
===================================================================
--- brlcad/trunk/src/libged/translate_tgc.c	2012-11-21 14:31:14 UTC (rev 53795)
+++ brlcad/trunk/src/libged/translate_tgc.c	2012-11-21 16:25:22 UTC (rev 53796)
@@ -71,8 +71,9 @@
 		    ld = MAGNITUDE(tgc->d);
 
 		    /* find 2 perpendicular vectors normal to H for new A, B */
-		    bn_vec_perp(tgc->b, tgc->h);
+		    VCROSS(tgc->b, tgc->h, tgc->a);
 		    VCROSS(tgc->a, tgc->b, tgc->h);
+
 		    VUNITIZE(tgc->a);
 		    VUNITIZE(tgc->b);
 

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