Fix typo causing wrong answer in 3d-calc in some situations #3251

git-svn-id: http://svn.osgeo.org/postgis/trunk@13960 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/liblwgeom/measures3d.c b/liblwgeom/measures3d.c
index 77ebeecb5f3cf72ff202a1bdc4a81fc6be52d427..b3b67e90c0ceb0bb3f4b58d026380cb2a5d0a58f 100644 (file)
--- a/liblwgeom/measures3d.c
+++ b/liblwgeom/measures3d.c
@@ -864,12 +864,12 @@ lw_dist3d_seg_seg(POINT3DZ *s1p1, POINT3DZ *s1p2, POINT3DZ *s2p1, POINT3DZ *s2p2
        double a, b, c, d, e, D;
                        
        /*s1p1 and s1p2 are the same point */
-       if (  ( s1p1->x == s1p2->x) && (s1p1->y == s1p2->y) && (s1p1->z == s1p2->y) )
+       if (  ( s1p1->x == s1p2->x) && (s1p1->y == s1p2->y) && (s1p1->z == s1p2->z) )
        {
                return lw_dist3d_pt_seg(s1p1,s2p1,s2p2,dl);
        }
        /*s2p1 and s2p2 are the same point */
-       if (  ( s2p1->x == s2p2->x) && (s2p1->y == s2p2->y) && (s2p1->z == s2p2->y) )
+       if (  ( s2p1->x == s2p2->x) && (s2p1->y == s2p2->y) && (s2p1->z == s2p2->z) )
        {
                dl->twisted= ((dl->twisted) * (-1));
                return lw_dist3d_pt_seg(s2p1,s1p1,s1p2,dl);