Revision: 50628
http://brlcad.svn.sourceforge.net/brlcad/?rev=50628&view=rev
Author: phoenixyjll
Date: 2012-05-22 05:06:16 +0000 (Tue, 22 May 2012)
Log Message:
-----------
Add some control to deal with special cases and add a few comments.
Modified Paths:
--------------
brlcad/trunk/src/librt/primitives/pipe/pipe_brep.cpp
Modified: brlcad/trunk/src/librt/primitives/pipe/pipe_brep.cpp
===================================================================
--- brlcad/trunk/src/librt/primitives/pipe/pipe_brep.cpp 2012-05-21
23:06:59 UTC (rev 50627)
+++ brlcad/trunk/src/librt/primitives/pipe/pipe_brep.cpp 2012-05-22
05:06:16 UTC (rev 50628)
@@ -71,7 +71,7 @@
startoutercurves->Append(curve);
}
ON_BrepFace *newouterface = (*b)->NewRuledFace(startedge, false, endedge,
false);
- (*b)->FlipFace(*newouterface);
+ if (newouterface != NULL) (*b)->FlipFace(*newouterface);
if (startinnercurves->Count() > 0) {
int c3ind = (*b)->AddEdgeCurve(ON_Curve::Cast(*(startinnercurves[0])));
@@ -110,12 +110,13 @@
ON_BrepFace *face = (*b)->NewFace(*revsurf);
(*b)->FlipFace(*face);
- revsurf = ON_RevSurface::New();
- revsurf->m_curve = *startinnercurves[0];
- revsurf->m_axis = *revaxis;
- revsurf->m_angle = ON_Interval(2*ON_PI - angle, 2*ON_PI);
- (void)(*b)->NewFace(*revsurf);
-
+ if (startinnercurves->Count() > 0) {
+ revsurf = ON_RevSurface::New();
+ revsurf->m_curve = *startinnercurves[0];
+ revsurf->m_axis = *revaxis;
+ revsurf->m_angle = ON_Interval(2*ON_PI - angle, 2*ON_PI);
+ (void)(*b)->NewFace(*revsurf);
+ }
}
@@ -146,6 +147,7 @@
pip = (struct rt_pipe_internal *)ip->idb_ptr;
RT_PIPE_CK_MAGIC(pip);
+ // delete duplicated points
curp = BU_LIST_FIRST(wdb_pipept, &pip->pipe_segs_head);
while (!(BU_LIST_NEXT_IS_HEAD(&curp->l, &pip->pipe_segs_head))) {
vect_t delta;
@@ -160,6 +162,7 @@
}
}
+ // make the first plane surface
if (BU_LIST_IS_EMPTY(&pip->pipe_segs_head)) return;
prevp = BU_LIST_FIRST(wdb_pipept, &pip->pipe_segs_head);
curp = BU_LIST_NEXT(wdb_pipept, &prevp->l);
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