From 9d671cd1b05a1289d3f836ae2c191e26b943f287 Mon Sep 17 00:00:00 2001 From: isn Date: Thu, 9 Jun 2016 17:30:26 +0300 Subject: [PATCH] 0027391: BRepLib::EnsureNormalConsistency() raises exception in case of asynchronious PolygonOnTriangulation problem additional check have been added to BRepLib::EnsureNormalConsistency() func. Any edges with two adjacent faces will be skipped (while updating of their normals) if the number of discretization points (nodes) will be different for each of this faces on this edge. test case --- src/BRepLib/BRepLib.cxx | 4 ++++ tests/bugs/modalg_6/bug27391 | 10 ++++++++++ 2 files changed, 14 insertions(+) create mode 100644 tests/bugs/modalg_6/bug27391 diff --git a/src/BRepLib/BRepLib.cxx b/src/BRepLib/BRepLib.cxx index 1bc4318172..f891ab9b60 100644 --- a/src/BRepLib/BRepLib.cxx +++ b/src/BRepLib/BRepLib.cxx @@ -1899,6 +1899,10 @@ Standard_Boolean BRepLib:: TShort_Array1OfShortReal& aNormArr1 = aPT1->ChangeNormals(); TShort_Array1OfShortReal& aNormArr2 = aPT2->ChangeNormals(); + if (aPTEF1->Nodes().Lower() != aPTEF2->Nodes().Lower() || + aPTEF1->Nodes().Upper() != aPTEF2->Nodes().Upper()) + continue; + for(Standard_Integer anEdgNode = aPTEF1->Nodes().Lower(); anEdgNode <= aPTEF1->Nodes().Upper(); anEdgNode++) { diff --git a/tests/bugs/modalg_6/bug27391 b/tests/bugs/modalg_6/bug27391 new file mode 100644 index 0000000000..7b8905f26e --- /dev/null +++ b/tests/bugs/modalg_6/bug27391 @@ -0,0 +1,10 @@ +puts "============" +puts "OCC27391" +puts "============" +puts "" +###################################################### +# BRepLib::EnsureNormalConsistency() raises exception in case of asynchronious PolygonOnTriangulation problem +###################################################### + +restore [locate_data_file bug27391_Ficomirrors_ExportBinMoldflow.brep] a +correctnormals a