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90 lines
2.7 KiB
90 lines
2.7 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkDicer.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#include "vtkDicer.h"
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#include "vtkDataSet.h"
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#include "vtkMath.h"
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vtkCxxRevisionMacro(vtkDicer, "$Revision: 1.33 $");
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// Instantiate object.
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vtkDicer::vtkDicer()
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{
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this->NumberOfPointsPerPiece = 5000;
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this->NumberOfPieces = 10;
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this->MemoryLimit = 50000; //50 MBytes
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this->NumberOfActualPieces = 0;
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this->FieldData = 0;
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this->DiceMode = VTK_DICE_MODE_NUMBER_OF_POINTS;
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}
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// This method unifies the measures used to define piece size. Call this
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// in the subclass Execute() method.
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void vtkDicer::UpdatePieceMeasures(vtkDataSet *input)
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{
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int numPts = input->GetNumberOfPoints();
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unsigned long memSize = input->GetActualMemorySize();
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if ( this->DiceMode == VTK_DICE_MODE_NUMBER_OF_POINTS )
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{
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this->NumberOfPieces = (int) ceil((double)numPts/this->NumberOfPointsPerPiece);
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this->MemoryLimit = (unsigned long) ceil((double)memSize/this->NumberOfPieces);
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}
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else if ( this->DiceMode == VTK_DICE_MODE_SPECIFIED_NUMBER )
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{
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this->NumberOfPointsPerPiece = (int) ceil((double)numPts/this->NumberOfPieces);
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this->MemoryLimit = (unsigned long) ceil((double)memSize/this->NumberOfPieces);
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}
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else //this->DiceMode == VTK_DICE_MODE_MEMORY_LIMIT
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{
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this->NumberOfPieces = (int) ceil((double)memSize/this->MemoryLimit);
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this->NumberOfPointsPerPiece = (int) ceil((double)numPts/this->NumberOfPieces);
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}
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}
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void vtkDicer::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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os << indent << "Number of Points per Piece: "
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<< this->NumberOfPointsPerPiece << "\n";
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os << indent << "Number of Pieces: "
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<< this->NumberOfPieces << "\n";
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os << indent << "Memory Limit: "
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<< this->MemoryLimit << "\n";
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os << indent << "Number of Actual Pieces: "
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<< this->NumberOfActualPieces << "\n";
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os << indent << "Field Data: " << (this->FieldData ? "On\n" : "Off\n");
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if ( this->DiceMode == VTK_DICE_MODE_NUMBER_OF_POINTS )
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{
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os << indent << "Dice Mode: Number Of Points\n";
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}
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else if ( this->DiceMode == VTK_DICE_MODE_SPECIFIED_NUMBER )
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{
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os << indent << "Dice Mode: Specified Number\n";
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}
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else
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{
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os << indent << "Dice Mode: Memory Limit\n";
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}
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}
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