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/*
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef otbPointSetToDensityImageFilter_txx
#define otbPointSetToDensityImageFilter_txx
#include "otbPointSetToDensityImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkProgressReporter.h"
namespace otb
{
/**---------------------------------------------------------
* Constructor
----------------------------------------------------------*/
template <class TInputPointSet, class TOutputImage, class TDensityFunction>
PointSetToDensityImageFilter<TInputPointSet, TOutputImage, TDensityFunction>
::PointSetToDensityImageFilter()
{
m_Radius = 1;
}
/*-------------------------------------------------------
* GenerateData
--------------------------------------------------------*/
template <class TInputPointSet, class TOutputImage, class TDensityFunction>
void
PointSetToDensityImageFilter<TInputPointSet, TOutputImage, TDensityFunction>
::GenerateData(void)
{
//Call the GenerateData() from itk::ImageSource which allow threading
Superclass::Superclass::GenerateData();
}
/*-------------------------------------------------------
* ThreadedGenerateData
--------------------------------------------------------*/
template <class TInputPointSet, class TOutputImage, class TDensityFunction>
void
PointSetToDensityImageFilter<TInputPointSet, TOutputImage, TDensityFunction>
::ThreadedGenerateData(
const OutputImageRegionType& outputRegionForThread,
itk::ThreadIdType threadId)
{
// sleep(threadId);
// std::cerr << threadId << " -> " << outputRegionForThread.GetIndex() << std::endl;
// support progress methods/callbacks
itk::ProgressReporter progress(this, threadId, outputRegionForThread.GetNumberOfPixels());
typename OutputImageType::Pointer outPtr = this->GetOutput();
PointSetDensityFunctionPointerType densityComputeFunction = PointSetDensityFunctionType::New();
densityComputeFunction->SetPointSet(this->GetInput());
densityComputeFunction->SetRadius(m_Radius);
/** Point*/
InputType pCenter;
IndexType index;
itk::ImageRegionIterator<OutputImageType> itOut(outPtr,
outputRegionForThread);
itOut.GoToBegin();
while (!itOut.IsAtEnd())
{
index = itOut.GetIndex();
outPtr->TransformIndexToPhysicalPoint(index, pCenter);
itOut.Set(densityComputeFunction->Evaluate(pCenter));
++itOut;
progress.CompletedPixel();
}
}
/*----------------------------------------------------------------
GenerateOutputInformation
-----------------------------------------------------------------*/
template <class TInputPointSet, class TOutputImage, class TDensityFunction>
void
PointSetToDensityImageFilter<TInputPointSet, TOutputImage, TDensityFunction>
::GenerateOutputInformation(void)
{
//Superclass::GenerateOutputInformation();
typename Superclass::OutputImagePointer outputPtr = this->GetOutput();
if (!outputPtr)
{
return;
}
typename OutputImageType::RegionType region;
IndexType start;
start.Fill(0);
region.SetSize(this->GetSize());
region.SetIndex(start);
outputPtr->SetOrigin(this->GetOrigin());
outputPtr->SetSignedSpacing(this->GetSpacing());
outputPtr->SetRegions(region);
}
/*----------------------------------------------------------------
PrintSelf
-----------------------------------------------------------------*/
template <class TInputPointSet, class TOutputImage, class TDensityFunction>
void
PointSetToDensityImageFilter<TInputPointSet, TOutputImage, TDensityFunction>
::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
}
}
#endif
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