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948fe6ca88
Implementation of the method for simplification of the result of Boolean Operation on the API level. The method BRepAlgoAPI_BuilderAlgo::SimplifyResult has been added, so the derived classes such as BooleanOpeation and Splitter can also use this method. The result shape simplification should be called after the operation is done. The simplification is performed by the means of ShapeUpgrade_UnifySameDomain algorithm. Draw command "bsimplify" has been added to control the simplification options. Documentation for new functionality and draw commands controlling the options of Boolean operations. Test cases for the new functionality. Side-effect change: The algorithms in Boolean component have been changed to use the BRepTools_History as a History tool. Now it became possible to disable the collection of shapes modifications during Boolean Operations, which may be useful for performance sake (in draw the option is controlled by *setfillhistory* command). Draw command "unifysamedom" has been changed to accept the angular tolerance in degrees instead of radians.
155 lines
4.6 KiB
C++
155 lines
4.6 KiB
C++
// Created by: Peter KURNEV
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// Copyright (c) 2010-2014 OPEN CASCADE SAS
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// Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
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// Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT,
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// EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _BOPAlgo_BuilderShape_HeaderFile
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#define _BOPAlgo_BuilderShape_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <BOPAlgo_Algo.hxx>
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#include <BRepTools_History.hxx>
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#include <Standard_Boolean.hxx>
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#include <NCollection_BaseAllocator.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <TopTools_MapOfShape.hxx>
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#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
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class TopoDS_Shape;
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//! Root class for algorithms that has shape as result.
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//!
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//! The class provides the History mechanism, which allows
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//! tracking the modification of the input shapes during
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//! the operation. It uses the *BRepTools_History* tool
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//! as a storer for history objects.
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class BOPAlgo_BuilderShape : public BOPAlgo_Algo
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{
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public:
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DEFINE_STANDARD_ALLOC
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public: //! @name Getting the result
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//! Returns the result of algorithm
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const TopoDS_Shape& Shape() const { return myShape; }
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public: //! @name History methods
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//! Returns the list of shapes Modified from the shape theS.
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const TopTools_ListOfShape& Modified(const TopoDS_Shape& theS)
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{
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if (myFillHistory && myHistory)
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return myHistory->Modified(theS);
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myHistShapes.Clear();
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return myHistShapes;
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}
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//! Returns the list of shapes Generated from the shape theS.
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const TopTools_ListOfShape& Generated(const TopoDS_Shape& theS)
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{
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if (myFillHistory && myHistory)
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return myHistory->Generated(theS);
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myHistShapes.Clear();
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return myHistShapes;
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}
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//! Returns true if the shape theS has been deleted.
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//! In this case the shape will have no Modified elements,
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//! but can have Generated elements.
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Standard_Boolean IsDeleted(const TopoDS_Shape& theS)
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{
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return (myFillHistory && myHistory ? myHistory->IsRemoved(theS) : Standard_False);
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}
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//! Returns true if any of the input shapes has been modified during operation.
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Standard_Boolean HasModified() const
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{
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return (myFillHistory && myHistory ? myHistory->HasModified() : Standard_False);
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}
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//! Returns true if any of the input shapes has generated shapes during operation.
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Standard_Boolean HasGenerated() const
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{
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return (myFillHistory && myHistory ? myHistory->HasGenerated() : Standard_False);
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}
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//! Returns true if any of the input shapes has been deleted during operation.
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Standard_Boolean HasDeleted() const
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{
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return (myFillHistory && myHistory ? myHistory->HasRemoved() : Standard_False);
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}
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//! History Tool
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Handle(BRepTools_History) History() const
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{
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return myFillHistory ? myHistory : NULL;
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}
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public: //! @name Enabling/Disabling the history collection.
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//! Allows disabling the history collection
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void SetToFillHistory(const Standard_Boolean theHistFlag) { myFillHistory = theHistFlag; }
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//! Returns flag of history availability
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Standard_Boolean HasHistory() const { return myFillHistory; }
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protected: //! @name Constructors
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//! Empty constructor
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BOPAlgo_BuilderShape()
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:
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BOPAlgo_Algo(),
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myFillHistory(Standard_True)
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{}
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//! Constructor with allocator
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BOPAlgo_BuilderShape(const Handle(NCollection_BaseAllocator)& theAllocator)
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:
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BOPAlgo_Algo(theAllocator),
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myFillHistory(Standard_True)
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{}
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protected: //! @name Clearing
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//! Clears the content of the algorithm.
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virtual void Clear() Standard_OVERRIDE
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{
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BOPAlgo_Algo::Clear();
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myHistory.Nullify();
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myMapShape.Clear();
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}
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protected: //! @name Fields
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TopoDS_Shape myShape; //!< Result of the operation
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TopTools_ListOfShape myHistShapes; //!< Storer for the history shapes
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TopTools_MapOfShape myMapShape; //!< Cashed map of all arguments shapes
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Standard_Boolean myFillHistory; //!< Controls the history filling
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Handle(BRepTools_History) myHistory; //!< History tool
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};
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#endif // _BOPAlgo_BuilderShape_HeaderFile
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