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/*=========================================================================
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.kitware.com/VolViewCopyright.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.
=========================================================================*/
/* perform a median filter */
#include <string.h>
#include <stdlib.h>
#include "vtkImageImport.h"
#include "vtkImageData.h"
#include "vtkPointData.h"
#include "vtkImageCast.h"
#include "vtkCallbackCommand.h"
#include "vtkAlgorithm.h"
#include "vtkDataArray.h"
#include "vtkVVPluginAPI.h"
extern "C" {
static void vvImageCastProgress(vtkObject *obj,
unsigned long, void *inf,
void *vtkNotUsed(prog))
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
vtkAlgorithm *src = vtkAlgorithm::SafeDownCast(obj);
if (src)
{
info->UpdateProgress(info,src->GetProgress(),
"Casting...");
/* check for abort */
src->SetAbortExecute(atoi(info->GetProperty(info,VVP_ABORT_PROCESSING)));
}
}
}
static int ProcessData(void *inf, vtkVVProcessDataStruct *pds)
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
int *dim = info->InputVolumeDimensions;
// create a Gaussian Filter
vtkImageCast *ig = vtkImageCast::New();
// setup progress
vtkCallbackCommand *cc = vtkCallbackCommand::New();
cc->SetCallback(vvImageCastProgress);
cc->SetClientData(inf);
ig->AddObserver(vtkCommand::ProgressEvent,cc);
cc->Delete();
// setup the input
vtkImageImport *ii = vtkImageImport::New();
ii->SetDataExtent(0, dim[0] - 1, 0, dim[1] - 1, 0, dim[2] - 1);
ii->SetWholeExtent(0, dim[0] - 1, 0, dim[1] - 1, 0, dim[2] - 1);
ii->SetDataScalarType(info->InputVolumeScalarType);
ii->SetNumberOfScalarComponents(
info->InputVolumeNumberOfComponents);
ii->SetDataOrigin(info->InputVolumeOrigin[0],
info->InputVolumeOrigin[1],
info->InputVolumeOrigin[2]);
ii->SetDataSpacing(info->InputVolumeSpacing[0],
info->InputVolumeSpacing[1],
info->InputVolumeSpacing[2]);
ii->SetImportVoidPointer(pds->inData);
ig->SetInput(ii->GetOutput());
ig->SetOutputScalarType( info->OutputVolumeScalarType );
// get the output, would be nice to have VTK write directly
// into the output buffer but... VTK is often broken in that regard
// so we will try, but check afterwards to see if it worked
vtkImageData *od = ig->GetOutput();
od->UpdateInformation();
od->SetExtent(0,0,0,0,0,0);
od->AllocateScalars();
int size = dim[0] * dim[1] * pds->NumberOfSlicesToProcess *
info->InputVolumeNumberOfComponents;
od->SetExtent(0, dim[0] - 1, 0, dim[1] - 1,
pds->StartSlice,
pds->StartSlice + pds->NumberOfSlicesToProcess - 1);
od->GetPointData()->GetScalars()->SetVoidArray(pds->outData,size,1);
// run the filter
od->SetUpdateExtent(od->GetExtent());
od->Update();
// did VTK not use our memory?
if (od->GetScalarPointer() != pds->outData)
{
memcpy(pds->outData, od->GetScalarPointer(),
(od->GetPointData()->GetScalars()->GetMaxId() + 1)*
od->GetPointData()->GetScalars()->GetDataTypeSize());
}
// clean up
ii->Delete();
ig->Delete();
return 0;
}
static int UpdateGUI(void *inf)
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
info->SetGUIProperty(info, 0, VVP_GUI_LABEL, "OutputDataType");
info->SetGUIProperty(info, 0, VVP_GUI_TYPE, VVP_GUI_CHOICE);
info->SetGUIProperty(info, 0, VVP_GUI_DEFAULT , "Char");
info->SetGUIProperty(info, 0, VVP_GUI_HELP,
"Scalar type of the output. For multi component data, this is the scalar type of each component.");
info->SetGUIProperty(info, 0, VVP_GUI_HINTS,
"9\nunsigned char\nshort\nunsigned short\nint\nunsigned int\nlong\nunsigned long\nfloat\ndouble");
info->OutputVolumeScalarType = info->InputVolumeScalarType;
const char *result = info->GetGUIProperty(info, 0, VVP_GUI_VALUE);
if (result)
{
for (int i = VTK_UNSIGNED_CHAR; i <= VTK_DOUBLE; i++)
{
if (strcmp( result, vtkImageScalarTypeNameMacro(i) ) == 0)
{
info->OutputVolumeScalarType = i;
std::cout << "Casting to " << vtkImageScalarTypeNameMacro(i) << std::endl;
}
}
}
info->OutputVolumeNumberOfComponents = info->InputVolumeNumberOfComponents;
for (int i = 0; i < 3; i++)
{
info->OutputVolumeDimensions[i] = info->InputVolumeDimensions[i];
info->OutputVolumeSpacing[i] = info->InputVolumeSpacing[i];
info->OutputVolumeOrigin[i] = info->InputVolumeOrigin[i];
}
return 1;
}
extern "C" {
void VV_PLUGIN_EXPORT vvVTKImageCastInit(vtkVVPluginInfo *info)
{
/* always check the version */
vvPluginVersionCheck();
// setup information that never changes
info->ProcessData = ProcessData;
info->UpdateGUI = UpdateGUI;
info->SetProperty(info, VVP_NAME, "Cast Image");
info->SetProperty(info, VVP_GROUP, "Utility");
info->SetProperty(info, VVP_TERSE_DOCUMENTATION,
"Cast an image with one datatype into another");
info->SetProperty(info, VVP_FULL_DOCUMENTATION,
"Cast an image with one datatype into another. No rounding is performed.");
info->SetProperty(info, VVP_SUPPORTS_IN_PLACE_PROCESSING, "0");
info->SetProperty(info, VVP_SUPPORTS_PROCESSING_PIECES, "1");
info->SetProperty(info, VVP_NUMBER_OF_GUI_ITEMS, "1");
info->SetProperty(info, VVP_REQUIRED_Z_OVERLAP, "1");
info->SetProperty(info, VVP_REQUIRES_SERIES_INPUT, "0");
info->SetProperty(info, VVP_SUPPORTS_PROCESSING_SERIES_BY_VOLUMES, "0");
info->SetProperty(info, VVP_PRODUCES_OUTPUT_SERIES, "0");
info->SetProperty(info, VVP_PRODUCES_PLOTTING_OUTPUT, "0");
}
}
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