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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSMPWarpVector.cxx
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.
=========================================================================*/
#include "vtkSMPWarpVector.h"
#include "vtkCellData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkSMPTools.h"
#include "vtkPointData.h"
#include "vtkPointSet.h"
#include "vtkPoints.h"
//----------------------------------------------------------------------------
vtkStandardNewMacro(vtkSMPWarpVector);
//----------------------------------------------------------------------------
vtkSMPWarpVector::vtkSMPWarpVector()
{
this->ScaleFactor = 1.0;
// by default process active point vectors
this->SetInputArrayToProcess(0,0,0,vtkDataObject::FIELD_ASSOCIATION_POINTS,
vtkDataSetAttributes::VECTORS);
}
//----------------------------------------------------------------------------
vtkSMPWarpVector::~vtkSMPWarpVector()
{
}
//----------------------------------------------------------------------------
template <class T1, class T2>
class vtkSMPWarpVectorOp
{
public:
T1 *InPoints;
T1 *OutPoints;
T2 *InVector;
T1 scaleFactor;
void operator()(vtkIdType begin, vtkIdType end)
{
T1* inPts = this->InPoints + 3*begin;
T1* outPts = this->OutPoints + 3*begin;
T2* inVec = this->InVector + 3*begin;
T1 sf = this->scaleFactor;
vtkIdType size = 3*(end-begin);
vtkIdType nend = begin + size;
for (vtkIdType index = begin; index < nend; index++)
{
*outPts = *inPts + sf * (T1)(*inVec);
inPts++; outPts++; inVec++;
/*
*outPts = *inPts + sf * (T1)(*inVec);
inPts++; outPts++; inVec++;
*outPts = *inPts + sf * (T1)(*inVec);
inPts++; outPts++; inVec++;
*/
}
}
};
//----------------------------------------------------------------------------
template <class T1, class T2>
void vtkSMPWarpVectorExecute2(vtkSMPWarpVector *self,
T1 *inIter,
T1 *outIter,
T2 *inVecIter,
vtkIdType size)
{
vtkSMPWarpVectorOp<T1, T2> op;
op.InPoints = inIter;
op.OutPoints = outIter;
op.InVector = inVecIter;
op.scaleFactor = (T1)self->GetScaleFactor();
vtkSMPTools::For(0, size, op);
}
//----------------------------------------------------------------------------
template <class T>
void vtkSMPWarpVectorExecute(vtkSMPWarpVector *self,
T *inIter,
T *outIter,
vtkIdType size,
vtkDataArray *vectors)
{
void *inVecIter = vectors->GetVoidPointer(0);
// call templated function
switch (vectors->GetDataType())
{
vtkTemplateMacro(
vtkSMPWarpVectorExecute2(self, inIter, outIter,
(VTK_TT *)(inVecIter), size));
default:
break;
}
}
//----------------------------------------------------------------------------
int vtkSMPWarpVector::RequestData(
vtkInformation *request,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// get the input and output
vtkPointSet *input = vtkPointSet::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
if (!input)
{
// Let the superclass handle vtkImageData and vtkRectilinearGrid
return this->Superclass::RequestData(request, inputVector, outputVector);
}
vtkPointSet *output = vtkPointSet::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkPoints *points;
vtkIdType numPts;
// First, copy the input to the output as a starting point
output->CopyStructure( input );
if (input == NULL || input->GetPoints() == NULL)
{
return 1;
}
numPts = input->GetPoints()->GetNumberOfPoints();
vtkDataArray *vectors = this->GetInputArrayToProcess(0,inputVector);
if ( !vectors || !numPts)
{
vtkDebugMacro(<<"No input data");
return 1;
}
// SETUP AND ALLOCATE THE OUTPUT
numPts = input->GetNumberOfPoints();
points = input->GetPoints()->NewInstance();
points->SetDataType(input->GetPoints()->GetDataType());
points->Allocate(numPts);
points->SetNumberOfPoints(numPts);
output->SetPoints(points);
points->Delete();
vtkDataArray* inpts = input->GetPoints()->GetData();
vtkDataArray* outpts = output->GetPoints()->GetData();
void* inIter = inpts->GetVoidPointer(0);
void* outIter = outpts->GetVoidPointer(0);
// call templated function
switch (input->GetPoints()->GetDataType())
{
vtkTemplateMacro(
vtkSMPWarpVectorExecute(this,
(VTK_TT *)(inIter),
(VTK_TT *)(outIter),
numPts,
vectors));
default:
break;
}
// now pass the data.
output->GetPointData()->CopyNormalsOff(); // distorted geometry
output->GetPointData()->PassData(input->GetPointData());
output->GetCellData()->PassData(input->GetCellData());
return 1;
}
//----------------------------------------------------------------------------
void vtkSMPWarpVector::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Scale Factor: " << this->ScaleFactor << "\n";
}
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