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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSimpleImageFilterExample.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 "vtkSimpleImageFilterExample.h"
#include "vtkImageData.h"
#include "vtkObjectFactory.h"
vtkStandardNewMacro(vtkSimpleImageFilterExample);
// The switch statement in Execute will call this method with
// the appropriate input type (IT). Note that this example assumes
// that the output data type is the same as the input data type.
// This is not always the case.
template <class IT>
void vtkSimpleImageFilterExampleExecute(vtkImageData* input,
vtkImageData* output,
IT* inPtr, IT* outPtr)
{
int dims[3];
input->GetDimensions(dims);
if (input->GetScalarType() != output->GetScalarType())
{
vtkGenericWarningMacro(<< "Execute: input ScalarType, " << input->GetScalarType()
<< ", must match out ScalarType " << output->GetScalarType());
return;
}
int size = dims[0]*dims[1]*dims[2];
for(int i=0; i<size; i++)
{
outPtr[i] = inPtr[i];
}
}
void vtkSimpleImageFilterExample::SimpleExecute(vtkImageData* input,
vtkImageData* output)
{
void* inPtr = input->GetScalarPointer();
void* outPtr = output->GetScalarPointer();
switch(output->GetScalarType())
{
// This is simply a #define for a big case list. It handles all
// data types VTK supports.
vtkTemplateMacro(
vtkSimpleImageFilterExampleExecute(input, output,
static_cast<VTK_TT *>(inPtr),
static_cast<VTK_TT *>(outPtr)));
default:
vtkGenericWarningMacro("Execute: Unknown input ScalarType");
return;
}
}
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