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https://git.salome-platform.org/gitpub/modules/geom.git
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266 lines
9.1 KiB
C++
266 lines
9.1 KiB
C++
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// Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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#include <Standard_Stream.hxx>
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#include <GEOMImpl_ProjectionDriver.hxx>
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#include <GEOMImpl_IMirror.hxx>
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#include <GEOMImpl_Types.hxx>
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#include <GEOM_Function.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepBuilderAPI_Transform.hxx>
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#include <BRepBuilderAPI_MakeVertex.hxx>
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#include <BRepClass_FaceClassifier.hxx>
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#include <BRepOffsetAPI_NormalProjection.hxx>
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#include <BRepTools.hxx>
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#include <TopAbs.hxx>
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#include <TopExp.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
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#include <GeomAPI_ProjectPointOnSurf.hxx>
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#include <Geom_Plane.hxx>
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#include <gp_Trsf.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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//=======================================================================
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//function : GetID
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//purpose :
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//=======================================================================
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const Standard_GUID& GEOMImpl_ProjectionDriver::GetID()
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{
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static Standard_GUID aProjectionDriver ("FF1BBB70-5D14-4df2-980B-3A668264EA16");
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return aProjectionDriver;
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}
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//=======================================================================
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//function : GEOMImpl_ProjectionDriver
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//purpose :
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//=======================================================================
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GEOMImpl_ProjectionDriver::GEOMImpl_ProjectionDriver()
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{
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}
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//=======================================================================
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//function : Execute
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//purpose :
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//=======================================================================
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Standard_Integer GEOMImpl_ProjectionDriver::Execute(TFunction_Logbook& log) const
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{
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if (Label().IsNull()) return 0;
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Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
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if (aFunction.IsNull()) return 0;
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TopoDS_Shape aShape;
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gp_Trsf aTrsf;
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GEOMImpl_IMirror TI (aFunction);
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Standard_Integer aType = aFunction->GetType();
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Handle(GEOM_Function) anOriginalFunction = TI.GetOriginal();
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if (anOriginalFunction.IsNull()) return 0;
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TopoDS_Shape anOriginal = anOriginalFunction->GetValue();
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if (anOriginal.IsNull()) return 0;
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// Projection
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if (aType == PROJECTION_COPY) {
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// Source shape (point, edge or wire)
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if (anOriginal.ShapeType() != TopAbs_VERTEX &&
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anOriginal.ShapeType() != TopAbs_EDGE &&
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anOriginal.ShapeType() != TopAbs_WIRE) {
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Standard_ConstructionError::Raise
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("Projection aborted : the source shape is neither a vertex, nor an edge or a wire");
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}
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// Target face
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Handle(GEOM_Function) aTargetFunction = TI.GetPlane();
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if (aTargetFunction.IsNull()) return 0;
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TopoDS_Shape aFaceShape = aTargetFunction->GetValue();
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//if (aFaceShape.IsNull() || aFaceShape.ShapeType() != TopAbs_FACE) {
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// Standard_ConstructionError::Raise
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// ("Projection aborted : the target shape is not a face");
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//}
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Standard_Real tol = 1.e-4;
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if (anOriginal.ShapeType() == TopAbs_VERTEX) {
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if (aFaceShape.IsNull() || aFaceShape.ShapeType() != TopAbs_FACE) {
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Standard_ConstructionError::Raise
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("Projection aborted : the target shape is not a face");
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}
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TopoDS_Face aFace = TopoDS::Face(aFaceShape);
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Handle(Geom_Surface) surface = BRep_Tool::Surface(aFace);
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double U1, U2, V1, V2;
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//surface->Bounds(U1, U2, V1, V2);
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BRepTools::UVBounds(aFace, U1, U2, V1, V2);
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// projector
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GeomAPI_ProjectPointOnSurf proj;
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proj.Init(surface, U1, U2, V1, V2, tol);
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gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(anOriginal));
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proj.Perform(aPnt);
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if (!proj.IsDone()) {
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Standard_ConstructionError::Raise
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("Projection aborted : the algorithm failed");
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}
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int nbPoints = proj.NbPoints();
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if (nbPoints < 1) {
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Standard_ConstructionError::Raise("No solution found");
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}
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Quantity_Parameter U, V;
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proj.LowerDistanceParameters(U, V);
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gp_Pnt2d aProjPnt (U, V);
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// classifier
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BRepClass_FaceClassifier aClsf (aFace, aProjPnt, tol);
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if (aClsf.State() != TopAbs_IN && aClsf.State() != TopAbs_ON) {
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bool isSol = false;
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double minDist = RealLast();
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for (int i = 1; i <= nbPoints; i++) {
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Quantity_Parameter Ui, Vi;
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proj.Parameters(i, Ui, Vi);
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aProjPnt = gp_Pnt2d(Ui, Vi);
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aClsf.Perform(aFace, aProjPnt, tol);
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if (aClsf.State() == TopAbs_IN || aClsf.State() == TopAbs_ON) {
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isSol = true;
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double dist = proj.Distance(i);
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if (dist < minDist) {
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minDist = dist;
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U = Ui;
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V = Vi;
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}
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}
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}
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if (!isSol) {
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Standard_ConstructionError::Raise("No solution found");
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}
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}
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gp_Pnt surfPnt = surface->Value(U, V);
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aShape = BRepBuilderAPI_MakeVertex(surfPnt).Shape();
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}
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else {
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//see BRepTest_BasicCommands.cxx for example of BRepOffsetAPI_NormalProjection
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BRepOffsetAPI_NormalProjection OrtProj (aFaceShape);
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OrtProj.Add(anOriginal);
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//Standard_Real tol = 1.e-4;
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//Standard_Real tol2d = Pow(tol, 2./3);
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//GeomAbs_Shape Continuity = GeomAbs_C2;
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//Standard_Integer MaxDeg = 14;
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//Standard_Integer MaxSeg = 16;
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//OrtProj.SetParams(tol, tol2d, Continuity, MaxDeg, MaxSeg);
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try {
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OrtProj.Build();
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} catch (Standard_Failure) {
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Handle(Standard_Failure) aFail = Standard_Failure::Caught();
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TCollection_AsciiString aMsg (aFail->GetMessageString());
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if (!aMsg.Length())
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aMsg = "Projection aborted : possibly the source shape intersects the cylinder's axis";
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Standard_ConstructionError::Raise(aMsg.ToCString());
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}
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if (!OrtProj.IsDone()) {
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Standard_ConstructionError::Raise
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("Projection aborted : BRepOffsetAPI_NormalProjection failed");
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}
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aShape = OrtProj.Shape();
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// check that the result shape is an empty compound
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// (IPAL22905: TC650: Projection on face dialog problems)
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if( !aShape.IsNull() && aShape.ShapeType() == TopAbs_COMPOUND )
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{
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TopoDS_Iterator anIter( aShape );
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if( !anIter.More() )
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Standard_ConstructionError::Raise("Projection aborted : empty compound produced");
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}
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}
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if (aShape.IsNull()) return 0;
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aFunction->SetValue(aShape);
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log.SetTouched(Label());
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}
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return 1;
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}
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//=======================================================================
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//function : GEOMImpl_ProjectionDriver_Type_
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//purpose :
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//=======================================================================
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Standard_EXPORT Handle_Standard_Type& GEOMImpl_ProjectionDriver_Type_()
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{
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static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
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if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
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static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
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if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
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static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
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if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
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static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
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static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_ProjectionDriver",
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sizeof(GEOMImpl_ProjectionDriver),
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1,
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(Standard_Address)_Ancestors,
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(Standard_Address)NULL);
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return _aType;
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}
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//=======================================================================
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//function : DownCast
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//purpose :
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//=======================================================================
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const Handle(GEOMImpl_ProjectionDriver) Handle(GEOMImpl_ProjectionDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
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{
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Handle(GEOMImpl_ProjectionDriver) _anOtherObject;
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if (!AnObject.IsNull()) {
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if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_ProjectionDriver))) {
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_anOtherObject = Handle(GEOMImpl_ProjectionDriver)((Handle(GEOMImpl_ProjectionDriver)&)AnObject);
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}
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}
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return _anOtherObject;
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}
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