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1. Implementation of the user-defined option for usage of Oriented Bounding Boxes (OBB) in Boolean Operations for additional filtering (rejection) of selected for intersection pairs of sub-shapes. By default the usage of OBB is turned off. To enable/disable its usage the method SetUseOBB(flag) should be used. This method is available for all operations in Boolean Component. To enable/disable it in draw the command "buseobb 0/1" should be used. Note, that this will affect all subsequent operations. The OBB for the shapes are built by first necessity and stored into operation context (IntTools_Context). 2. Usage of the OBB in some test cases.
121 lines
4.2 KiB
C++
121 lines
4.2 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 _BOPDS_Iterator_HeaderFile
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#define _BOPDS_Iterator_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 <Standard_Integer.hxx>
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#include <BOPDS_PDS.hxx>
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#include <BOPDS_VectorOfPair.hxx>
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#include <BOPDS_VectorOfVectorOfPair.hxx>
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#include <NCollection_BaseAllocator.hxx>
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#include <Precision.hxx>
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#include <Standard_Boolean.hxx>
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#include <TopAbs_ShapeEnum.hxx>
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class BOPDS_DS;
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class IntTools_Context;
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//! The class BOPDS_Iterator is
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//! 1.to compute intersections between BRep sub-shapes
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//! of arguments of an operation (see the class BOPDS_DS)
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//! in terms of theirs bounding boxes
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//! 2.provides interface to iterare the pairs of
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//! intersected sub-shapes of given type
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class BOPDS_Iterator
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Empty contructor
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Standard_EXPORT BOPDS_Iterator();
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Standard_EXPORT virtual ~BOPDS_Iterator();
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//! Contructor
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//! theAllocator - the allocator to manage the memory
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Standard_EXPORT BOPDS_Iterator(const Handle(NCollection_BaseAllocator)& theAllocator);
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//! Modifier
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//! Sets the data structure <pDS> to process
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Standard_EXPORT void SetDS (const BOPDS_PDS& pDS);
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//! Selector
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//! Returns the data structure
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Standard_EXPORT const BOPDS_DS& DS() const;
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//! Initializes the iterator
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//! theType1 - the first type of shape
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//! theType2 - the second type of shape
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Standard_EXPORT void Initialize (const TopAbs_ShapeEnum theType1, const TopAbs_ShapeEnum theType2);
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//! Returns true if still there are pairs
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//! of intersected shapes
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Standard_EXPORT Standard_Boolean More() const;
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//! Moves iterations ahead
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Standard_EXPORT void Next();
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//! Returns indices (DS) of intersected shapes
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//! theIndex1 - the index of the first shape
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//! theIndex2 - the index of the second shape
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Standard_EXPORT void Value (Standard_Integer& theIndex1,
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Standard_Integer& theIndex2) const;
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//! Perform the intersection algorithm and prepare
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//! the results to be used
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Standard_EXPORT virtual void Prepare(const Handle(IntTools_Context)& theCtx = Handle(IntTools_Context)(),
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const Standard_Boolean theCheckOBB = Standard_False,
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const Standard_Real theFuzzyValue = Precision::Confusion());
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//! Returns the number of intersections founded
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Standard_EXPORT Standard_Integer ExpectedLength() const;
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//! Returns the block length
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Standard_EXPORT Standard_Integer BlockLength() const;
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//! Set the flag of parallel processing
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//! if <theFlag> is true the parallel processing is switched on
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//! if <theFlag> is false the parallel processing is switched off
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Standard_EXPORT void SetRunParallel (const Standard_Boolean theFlag);
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//! Returns the flag of parallel processing
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Standard_EXPORT Standard_Boolean RunParallel() const;
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protected:
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Standard_EXPORT virtual void Intersect(const Handle(IntTools_Context)& theCtx = Handle(IntTools_Context)(),
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const Standard_Boolean theCheckOBB = Standard_False,
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const Standard_Real theFuzzyValue = Precision::Confusion());
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Handle(NCollection_BaseAllocator) myAllocator;
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Standard_Integer myLength;
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BOPDS_PDS myDS;
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BOPDS_VectorOfVectorOfPair myLists;
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BOPDS_VectorOfPair::Iterator myIterator;
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Standard_Boolean myRunParallel;
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private:
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};
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#endif // _BOPDS_Iterator_HeaderFile
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