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114b7bf18f
MeshVS_Mesh selection logic in MeshVS_SMF_Mesh mode (entire mesh) has been optimized. MeshVS_Mesh::ComputeSelection() now creates single sensitive entity MeshVS_CommonSensitiveEntity (new class) instead of small sensitive entity on each element. MeshVS_SensitiveQuad (new class) and Select3D_SensitiveTriangle are used instead of Select3D_SensitiveFace for local selection to reduce memory consumption when possible.
90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
// Created on: 2007-03-07
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// Created by: msv@EUCLIDEX
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// Copyright (c) 2007-2014 OPEN CASCADE SAS
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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 MeshVS_Buffer_HeaderFile
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#define MeshVS_Buffer_HeaderFile
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#include <Standard.hxx>
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#include <gp_Pnt.hxx>
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/**
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* General purpose buffer that is allocated on the stack with a
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* constant size MeshVS_BufSize, or is allocated dynamically if the requested
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* size exceeds the standard one.
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* It is useful when an allocation of an array of unknown size is needed,
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* and most often the array is small enough to allocate as automatic C array.
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*/
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//! define the constant to the size of 10 points
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#define MeshVS_BufSize 10*3*sizeof(double)
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class MeshVS_Buffer
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{
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public:
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//! Constructor of the buffer of the requested size
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MeshVS_Buffer (const Standard_Size theSize)
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: myDynData (0)
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{
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if (theSize > MeshVS_BufSize)
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myDynData = Standard::Allocate (theSize);
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}
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//! Destructor
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~MeshVS_Buffer()
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{
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if (myDynData)
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{
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Standard::Free (myDynData);
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myDynData = 0;
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}
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}
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//! Cast the buffer to the void pointer
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operator void* ()
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{
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return myDynData ? myDynData : (void*) myAutoData;
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}
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//! Interpret the buffer as a reference to double
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operator Standard_Real& ()
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{
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return * (myDynData ? (Standard_Real*) myDynData : (Standard_Real*) myAutoData);
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}
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//! Interpret the buffer as a reference to int
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operator Standard_Integer& ()
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{
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return * (myDynData ? (Standard_Integer*) myDynData : (Standard_Integer*) myAutoData);
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}
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//! Interpret the buffer as a reference to gp_Pnt
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operator gp_Pnt& ()
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{
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return * (myDynData ? (gp_Pnt*) myDynData : (gp_Pnt*) myAutoData);
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}
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private:
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//! Deprecate copy constructor
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MeshVS_Buffer(const MeshVS_Buffer&) {}
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//! Deprecate copy operation
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MeshVS_Buffer& operator=(const MeshVS_Buffer&) {return *this;}
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char myAutoData[ MeshVS_BufSize ];
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void* myDynData;
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};
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#endif
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