/usr/include/vtk-6.3/vtkSMPMergePoints.h is in libvtk6-dev 6.3.0+dfsg1-11build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkSMPMergePoints.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkSMPMergePoints - Class designed to help with merging of points in parallel
// .SECTION Description
// vtkSMPMergePoints is a subclass of vtkMergePoints designed to help
// with merging of points generated by using multiple locators in parallel.
// Its main functionality is provided by the Merge function. It also
// has a few additional convenience functions.
// Merge is thread safe as long as no two threads are merging the same
// bin. The common way of using vtkSMPMergePoints is:
// - Initialize with outLocator->InitializeMerge()
// - Allocate points with outLocator->GetPoints()->Resize(numPts) (numPts should be >= total number of points)
// - Do bunch of merging with outLocator->Merge(inLocator[i], ...) (this can be done in parallel as long as no two bins are done at the same time)
// - Fix the size of points with outLocator->FixSizeOfPointArray()
#ifndef vtkSMPMergePoints_h__
#define vtkSMPMergePoints_h__
#include "vtkFiltersSMPModule.h" // For export macro
#include "vtkMergePoints.h"
#include "vtkIdList.h" // For inline functions
#include "vtkAtomicTypes.h" // For the atomic integer used in Merge()
class vtkPointData;
class VTKFILTERSSMP_EXPORT vtkSMPMergePoints : public vtkMergePoints
{
public:
vtkTypeMacro(vtkSMPMergePoints, vtkMergePoints);
static vtkSMPMergePoints* New();
void PrintSelf(ostream &os, vtkIndent indent);
// Description:
// This should be called from 1 thread before any call to Merge.
void InitializeMerge();
// Description:
// Merge the points of one of the bins from the given locator to
// the same bin of the current locator. Note that this requires that
// the two locators have identical binning structures. This also
// merges point data given in the inPD argument to the outPd.
// Furthermore, it generates a map of the old ids of the input locator
// to the new ids. This is stored in the idList argument. The map
// is idList[oldId] = newId.
void Merge(vtkSMPMergePoints* locator,
vtkIdType idx,
vtkPointData *outPd,
vtkPointData *inPd,
vtkIdList* idList);
// Description:
// At the of the merge, this can be called to set the MaxId of the
// points array to the maximum id in the locator. The current design
// usage is as follows:
// - Allocate points with points->Resize(numPts). NumPts should be >= total number of points
// - Do bunch of merging with outLocator->Merge(inLocator[i], ...)
// - Fix the size of points with outLocator->FixSizeOfPointArray()
void FixSizeOfPointArray();
// Description:
// Returns the biggest id in the locator.
vtkIdType GetMaxId()
{
return this->AtomicInsertionId - 1;
}
// Description:
// Retuns the number of points in a bin.
vtkIdType GetNumberOfIdsInBucket(vtkIdType idx)
{
if ( !this->HashTable )
{
return 0;
}
vtkIdList* bucket = this->HashTable[idx];
return bucket ? bucket->GetNumberOfIds() : 0;
}
// Description:
// Retuns the number of bins.
vtkIdType GetNumberOfBuckets()
{
return this->NumberOfBuckets;
}
protected:
vtkSMPMergePoints();
~vtkSMPMergePoints();
vtkAtomicIdType AtomicInsertionId;
private:
vtkSMPMergePoints(const vtkSMPMergePoints&); // Not implemented
void operator=(const vtkSMPMergePoints&); // Not implemented
};
#endif // vtkSMPMergePoints_h__
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