From 218760d2f50aa0ee2770b9db75ccf86dc6e361b2 Mon Sep 17 00:00:00 2001
From: Don Bright <hugh.m.bright@gmail.com>
Date: Sun, 15 Dec 2013 08:02:42 -0600
Subject: restore error checking when creating polyhedron from polyset


diff --git a/src/CGALEvaluator.cc b/src/CGALEvaluator.cc
index 854e9cd..3a05b2b 100644
--- a/src/CGALEvaluator.cc
+++ b/src/CGALEvaluator.cc
@@ -672,8 +672,8 @@ CGAL_Nef_polyhedron CGALEvaluator::evaluateCGALMesh(const PolySet &ps)
 		CGAL::Failure_behaviour old_behaviour = CGAL::set_error_behaviour(CGAL::THROW_EXCEPTION);
 		try {
 			CGAL_Polyhedron P;
-			createPolyhedronFromPolySet(ps,P);
-			N = new CGAL_Nef_polyhedron3(P);
+			bool err = createPolyhedronFromPolySet(ps,P);
+			if (!err) N = new CGAL_Nef_polyhedron3(P);
 		}
 		catch (const CGAL::Assertion_exception &e) {
 			if (std::string(e.what()).find("Plane_constructor")!=std::string::npos) {
@@ -689,8 +689,8 @@ CGAL_Nef_polyhedron CGALEvaluator::evaluateCGALMesh(const PolySet &ps)
 			PolySet ps2;
 			CGAL_Polyhedron P;
 			tessellate_3d_faces( ps, ps2 );
-			createPolyhedronFromPolySet(ps2,P);
-			N = new CGAL_Nef_polyhedron3(P);
+			bool err = createPolyhedronFromPolySet(ps2,P);
+			if (!err) N = new CGAL_Nef_polyhedron3(P);
 		}
 		catch (const CGAL::Assertion_exception &e) {
 			PRINTB("Alternate construction failed. CGAL error in CGAL_Nef_polyhedron3(): %s", e.what());
-- 
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