CEA - Lot3 : Add LOFT Feature

[modules/shaper.git] / src / GeomAlgoAPI / GeomAlgoAPI_Loft.cpp

diff --git a/src/GeomAlgoAPI/GeomAlgoAPI_Loft.cpp b/src/GeomAlgoAPI/GeomAlgoAPI_Loft.cpp
new file mode 100644 (file)
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--- /dev/null
+++ b/src/GeomAlgoAPI/GeomAlgoAPI_Loft.cpp
@@ -0,0 +1,118 @@
+// Copyright (C) 2014-2022  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#include "GeomAlgoAPI_DFLoader.h"
+#include "GeomAlgoAPI_Loft.h"
+#include "GeomAlgoAPI_WireBuilder.h"
+
+#include <BRepOffsetAPI_ThruSections.hxx>
+#include <Precision.hxx>
+#include <TopExp_Explorer.hxx>
+#include <TopoDS.hxx>
+
+//==================================================================================================
+GeomAlgoAPI_Loft::GeomAlgoAPI_Loft(const GeomShapePtr theFirstShape, const GeomShapePtr theSecondShape)
+{
+  build(theFirstShape, theSecondShape);
+}
+
+//==================================================================================================
+void GeomAlgoAPI_Loft::build(const GeomShapePtr theFirstShape,
+                             const GeomShapePtr theSecondShape)
+{
+  // Getting base shape.
+  if(!theFirstShape.get() || !theSecondShape.get()) {
+    return;
+  }
+  TopoDS_Shape aFirstShape = theFirstShape->impl<TopoDS_Shape>();
+  if(aFirstShape.IsNull()) {
+    return;
+  }
+  TopoDS_Shape aSecondShape= theSecondShape->impl<TopoDS_Shape>();
+  if(aSecondShape.IsNull()) {
+    return;
+  }
+
+  bool anIsSolid = false;
+
+  TopoDS_Shape aFirstShapeOut;
+  TopoDS_Shape aSecondShapeOut;
+  if (aFirstShape.ShapeType() == TopAbs_FACE) {
+    TopExp_Explorer anExp(aFirstShape, TopAbs_WIRE);
+    aFirstShapeOut = anExp.Current();
+    TopExp_Explorer anExp2(aSecondShape, TopAbs_WIRE);
+    aSecondShapeOut = anExp2.Current();
+    anIsSolid = true;
+  }
+
+  if (aFirstShape.ShapeType() == TopAbs_WIRE) {
+    aFirstShapeOut = aFirstShape;
+    aSecondShapeOut = aSecondShape;
+  }
+
+  if (aFirstShape.ShapeType() == TopAbs_EDGE)
+  {
+    GeomShapePtr aFirstWire, aSecondWire;
+    ListOfShape aFirstEdge, aSecondEdge;
+
+    // Convert first edge to wire
+    aFirstEdge.push_back(theFirstShape);
+    aFirstWire = GeomAlgoAPI_WireBuilder::wire(aFirstEdge);
+    TopoDS_Shape aFirstShape = aFirstWire->impl<TopoDS_Shape>();
+
+    // Convert first edge to wire
+    aSecondEdge.push_back(theSecondShape);
+    aSecondWire = GeomAlgoAPI_WireBuilder::wire(aSecondEdge);
+    TopoDS_Shape aSecondShape = aSecondWire->impl<TopoDS_Shape>();
+
+    aFirstShapeOut = aFirstShape;
+    aSecondShapeOut = aSecondShape;
+  }
+
+  // Initialize and build
+  BRepOffsetAPI_ThruSections * ThruSections =
+                              new BRepOffsetAPI_ThruSections(anIsSolid);
+  ThruSections->AddWire( TopoDS::Wire( aFirstShapeOut ) );
+  ThruSections->AddWire( TopoDS::Wire( aSecondShapeOut) );
+
+  try
+  {
+    ThruSections->Build();
+  }
+  catch (Standard_Failure& aFail)
+  {
+    delete ThruSections;
+    return;
+  }
+  // Checking result.
+  if(!ThruSections->IsDone() || ThruSections->Shape().IsNull()) {
+    delete ThruSections;
+    return;
+  }
+
+  this->initialize(ThruSections);
+
+  // Setting result.
+  TopoDS_Shape aResult = ThruSections->Shape();
+  aResult = GeomAlgoAPI_DFLoader::refineResult(aResult);
+  GeomShapePtr aGeomSh(new GeomAPI_Shape());
+  aGeomSh->setImpl(new TopoDS_Shape(aResult));
+  this->setShape(aGeomSh);
+  this->setDone(true);
+}