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Data Exchange, IGES Export - Missing Model Curves in transfer cache #483

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Check if the curve was already created and use it. Works for shared edges cases.
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ikochetkova 2025-04-22 18:01:06 +01:00 committed by GitHub
parent 7aa85582ad
commit 3ee97f70d0
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3 changed files with 62 additions and 0 deletions
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7
src/DataExchange/TKDEIGES/BRepToIGESBRep/BRepToIGESBRep_Entity.cxx
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@ -317,6 +317,13 @@ Handle(IGESData_IGESEntity) BRepToIGESBRep_Entity::TransferShape(
Handle(IGESData_IGESEntity) BRepToIGESBRep_Entity::TransferEdge(const TopoDS_Edge& myedge) Handle(IGESData_IGESEntity) BRepToIGESBRep_Entity::TransferEdge(const TopoDS_Edge& myedge)
{ {
Standard_Integer anInd = IndexEdge(myedge);
if (anInd != 0)
{
Handle(IGESData_IGESEntity) ICurve3d = Handle(IGESData_IGESEntity)::DownCast(myCurves(anInd));
if (!ICurve3d.IsNull())
return ICurve3d;
}
BRepToIGES_BRWire BR(*this); BRepToIGES_BRWire BR(*this);
BR.SetModel(GetModel()); BR.SetModel(GetModel());
TopTools_DataMapOfShapeShape anEmptyMap; TopTools_DataMapOfShapeShape anEmptyMap;

1
src/DataExchange/TKDEIGES/GTests/FILES.cmake
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@ -2,4 +2,5 @@
set(OCCT_TKDEIGES_GTests_FILES_LOCATION "${CMAKE_CURRENT_LIST_DIR}") set(OCCT_TKDEIGES_GTests_FILES_LOCATION "${CMAKE_CURRENT_LIST_DIR}")
set(OCCT_TKDEIGES_GTests_FILES set(OCCT_TKDEIGES_GTests_FILES
IGESExportTest.cxx
) )

54
src/DataExchange/TKDEIGES/GTests/IGESExportTest.cxx Normal file
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@ -0,0 +1,54 @@
// Copyright (c) 2025 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <BRepPrimAPI_MakeBox.hxx>
#include <IGESData_IGESEntity.hxx>
#include <IGESData_IGESModel.hxx>
#include <IGESGeom_Line.hxx>
#include <IGESControl_Writer.hxx>
#include <Transfer_SimpleBinderOfTransient.hxx>
#include <Transfer_FinderProcess.hxx>
#include <gtest/gtest.h>
// Check that 2d curves of shared edges are not lost in BRep mode.
TEST(IGESExportTest, SharedCurvesBRepMode)
{
TopoDS_Shape aSolid = (TopoDS_Solid)BRepPrimAPI_MakeBox(gp_Pnt(0, 0, 0), 1, 1, 1);
Standard_Integer aBRepMode = 1;
IGESControl_Writer aWriter("MM", aBRepMode);
aWriter.AddShape(aSolid);
const Handle(Transfer_FinderProcess)& aFP = aWriter.TransferProcess();
const Handle(IGESData_IGESModel)& aModel = aWriter.Model();
for (Standard_Integer i = 1; i <= aFP->NbMapped(); i++)
{
Handle(Transfer_SimpleBinderOfTransient) aBinder =
Handle(Transfer_SimpleBinderOfTransient)::DownCast(aFP->MapItem(i));
if (aBinder.IsNull())
continue;
Handle(IGESData_IGESEntity) anEnt = Handle(IGESData_IGESEntity)::DownCast(aBinder->Result());
if (anEnt.IsNull())
continue;
Handle(IGESGeom_Line) aLine = Handle(IGESGeom_Line)::DownCast(anEnt);
if (aLine.IsNull())
continue;
// Check that all the entities are in the model.
EXPECT_TRUE(aModel->DNum(anEnt) != 0);
}
}