Revision: 73840
http://sourceforge.net/p/brlcad/code/73840
Author: starseeker
Date: 2019-09-05 23:17:13 +0000 (Thu, 05 Sep 2019)
Log Message:
-----------
Use calc_trim_vnorm, but something about the m_bRev handling is out of kilter
somehow...
Modified Paths:
--------------
brlcad/trunk/src/libbrep/cdt.cpp
Modified: brlcad/trunk/src/libbrep/cdt.cpp
===================================================================
--- brlcad/trunk/src/libbrep/cdt.cpp 2019-09-05 20:32:45 UTC (rev 73839)
+++ brlcad/trunk/src/libbrep/cdt.cpp 2019-09-05 23:17:13 UTC (rev 73840)
@@ -1327,8 +1327,10 @@
// 3D points are globally unique, but normals are
not - the same edge point may
// have different normals from two faces at a sharp
edge. Calculate the
// face normal for this point on this surface.
- ON_3dPoint tmp1;
- surface_EvNormal(trim->SurfaceOf(), cp.x, cp.y,
tmp1, norm);
+ norm = calc_trim_vnorm(*trim->Vertex(0), trim);
+ if (face.m_bRev) {
+ norm = -1 * norm;
+ }
} else {
// Surface sampling will need some information
about singularities
s_cdt->strim_pnts[face_index][trim->m_trim_index] =
op3d;
@@ -1362,8 +1364,10 @@
// 3D points are globally unique, but normals are
not - the same edge point may
// have different normals from two faces at a sharp
edge. Calculate the
// face normal for this point on this surface.
- ON_3dPoint tmp1;
- surface_EvNormal(trim->SurfaceOf(), cp.x, cp.y,
tmp1, norm);
+ norm = calc_trim_vnorm(*trim->Vertex(1), trim);
+ if (face.m_bRev) {
+ norm = -1 * norm;
+ }
} else {
// Surface sampling will need some information
about singularities
s_cdt->strim_pnts[face_index][trim->m_trim_index] =
cp3d;
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