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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.
=========================================================================*/
#include "vtkVVPluginAPI.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define ApplyThresholdFilterMacro( COMPARISON ) \
int i, j, k; \
for ( k = 0; k < dim[2]; k++ ) \
{ \
info->UpdateProgress(info,(float)1.0*k/dim[2],"Thresholding..."); \
abort = atoi(info->GetProperty(info,VVP_ABORT_PROCESSING)); \
for ( j = 0; !abort && j < dim[1]; j++ ) \
{ \
for ( i = 0; i < nc*dim[0]; i++ ) \
{ \
if ( *ptr COMPARISON compVal ) \
{ \
*ptr = assignVal; \
} \
ptr++; \
} \
} \
} \
info->UpdateProgress(info,(float)1.0,"Thresholding Complete");
//-----------------------------------------------------------
template <class IT>
void vvThresholdTemplate(vtkVVPluginInfo *info,
vtkVVProcessDataStruct *pds,
IT *)
{
IT *ptr = (IT *)pds->outData;
int *dim = info->InputVolumeDimensions;
double v1 = atof(info->GetGUIProperty(info, 1, VVP_GUI_VALUE));
double v2 = atof(info->GetGUIProperty(info, 2, VVP_GUI_VALUE));
const char *label = info->GetGUIProperty(info, 0, VVP_GUI_VALUE);
int abort = 0;
IT compVal = (IT)v1;
IT assignVal = (IT)v2;
int nc = info->InputVolumeNumberOfComponents;
if (!strcmp(label,"<"))
{
ApplyThresholdFilterMacro( < );
}
if (!strcmp(label,"<="))
{
ApplyThresholdFilterMacro( <= );
}
if (!strcmp(label,"=="))
{
ApplyThresholdFilterMacro( == );
}
if (!strcmp(label,">="))
{
ApplyThresholdFilterMacro( >= );
}
if (!strcmp(label,">"))
{
ApplyThresholdFilterMacro( > );
}
}
static int ProcessData(void *inf, vtkVVProcessDataStruct *pds)
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
switch (info->InputVolumeScalarType)
{
// invoke the appropriate templated function
vtkTemplateMacro3(vvThresholdTemplate, info, pds,
static_cast<VTK_TT *>(0));
}
return 0;
}
static int UpdateGUI(void *inf)
{
char tmp[1024];
double stepSize = 1.0;
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
info->SetGUIProperty(info, 0, VVP_GUI_LABEL, "Replace values");
info->SetGUIProperty(info, 0, VVP_GUI_TYPE, VVP_GUI_CHOICE);
info->SetGUIProperty(info, 0, VVP_GUI_DEFAULT , "<");
info->SetGUIProperty(info, 0, VVP_GUI_HELP,
"The comparison operation for a pixel");
info->SetGUIProperty(info, 0, VVP_GUI_HINTS, "5\n<\n<=\n==\n>=\n>");
info->SetGUIProperty(info, 1, VVP_GUI_LABEL, "Threshold Value");
info->SetGUIProperty(info, 1, VVP_GUI_TYPE, VVP_GUI_SCALE);
info->SetGUIProperty(info, 1, VVP_GUI_DEFAULT , "0");
info->SetGUIProperty(info, 1, VVP_GUI_HELP,
"The value to compare against");
info->SetGUIProperty(info, 2, VVP_GUI_LABEL, "Replacement Value");
info->SetGUIProperty(info, 2, VVP_GUI_TYPE, VVP_GUI_SCALE);
info->SetGUIProperty(info, 2, VVP_GUI_DEFAULT , "0");
info->SetGUIProperty(info, 2, VVP_GUI_HELP,
"The value to replace with");
/* set the range of the sliders */
if (info->InputVolumeScalarType == VTK_FLOAT ||
info->InputVolumeScalarType == VTK_DOUBLE)
{
/* for float and double use a step size of 1/200 th the range */
stepSize = info->InputVolumeScalarRange[1]*0.005 -
info->InputVolumeScalarRange[0]*0.005;
}
sprintf(tmp,"%g %g %g",
info->InputVolumeScalarRange[0],
info->InputVolumeScalarRange[1],
stepSize);
info->SetGUIProperty(info, 1, VVP_GUI_HINTS , tmp);
/* auto range for scalar type */
vvPluginSetGUIScaleRange(2);
info->OutputVolumeScalarType = info->InputVolumeScalarType;
info->OutputVolumeNumberOfComponents = info->InputVolumeNumberOfComponents;
int i;
for (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 vvThresholdInit(vtkVVPluginInfo *info)
{
/* always check the version */
vvPluginVersionCheck();
/* setup information that never changes */
info->ProcessData = ProcessData;
info->UpdateGUI = UpdateGUI;
/* set the properties this plugin uses */
info->SetProperty(info, VVP_NAME, "Threshold");
info->SetProperty(info, VVP_GROUP, "Utility");
info->SetProperty(info, VVP_TERSE_DOCUMENTATION,
"Replace voxels above/at/below the threshold value");
info->SetProperty(info, VVP_FULL_DOCUMENTATION,
"This filter performs a pixel replacement, replacing pixel in the original data by a specified replacement value. The pixels to be replaced are determine by comparing the original pixel value to a threshold value with a user specified comparison operation. This filter operates in place, and does not change the dimensions, data type, or spacing of the volume.");
info->SetProperty(info, VVP_SUPPORTS_IN_PLACE_PROCESSING, "1");
info->SetProperty(info, VVP_SUPPORTS_PROCESSING_PIECES, "1");
info->SetProperty(info, VVP_NUMBER_OF_GUI_ITEMS, "3");
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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