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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 simple crop filter */
#include "vtkVVPluginAPI.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
static int ProcessData(void *inf, vtkVVProcessDataStruct *pds)
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
int *dim = info->InputVolumeDimensions;
int *outDim = info->OutputVolumeDimensions;
char results[1024];
unsigned char *inPtr = (unsigned char *)pds->inData;
unsigned char *inSlicePtr;
unsigned char *ptr = (unsigned char *)pds->outData;
int j, k;
int outRowSize = outDim[0] *
info->OutputVolumeNumberOfComponents * info->InputVolumeScalarSize;
int inRowInc = dim[0] *
info->InputVolumeNumberOfComponents * info->InputVolumeScalarSize;
int inSliceInc = dim[0] * dim[1] *
info->InputVolumeNumberOfComponents * info->InputVolumeScalarSize;
/* convert cropping planes into indexes */
int idx[6];
for (j = 0; j < 6; ++j)
{
idx[j] = (int)((info->CroppingPlanes[j]-info->InputVolumeOrigin[j/2])/
info->InputVolumeSpacing[j/2] + 0.5);
if (idx[j] < 0)
{
idx[j] = 0;
}
if (idx[j] >= info->InputVolumeDimensions[j/2])
{
idx[j] = info->InputVolumeDimensions[j/2] -1;
}
}
/* compute the starting ptr loc */
inPtr = inPtr +
info->InputVolumeNumberOfComponents * info->InputVolumeScalarSize *
(idx[0] + dim[0]*(idx[2] + dim[1]*idx[4]));
inSlicePtr = inPtr;
/* loop over the output volume, and copy from the input volume */
for ( k = 0; k < outDim[2]; k++ )
{
inPtr = inSlicePtr;
for ( j = 0; j < outDim[1]; j++ )
{
memcpy(ptr,inPtr,outRowSize);
ptr += outRowSize;
inPtr += inRowInc;
}
inSlicePtr += inSliceInc;
}
// report the results
sprintf(results,"Cropped input volume with dimensions %i %i %i and origin of %g %g %g to output volume with dimensions %i %i %i and origin of %g %g %g",
dim[0], dim[1], dim[2],
info->InputVolumeOrigin[0],
info->InputVolumeOrigin[1],
info->InputVolumeOrigin[2],
outDim[0], outDim[1], outDim[2],
info->OutputVolumeOrigin[0],
info->OutputVolumeOrigin[1],
info->OutputVolumeOrigin[2]);
info->SetProperty(info, VVP_REPORT_TEXT,results);
return 0;
}
static int UpdateGUI(void *inf)
{
vtkVVPluginInfo *info = (vtkVVPluginInfo *)inf;
int i, j, idx[2];
info->OutputVolumeScalarType = info->InputVolumeScalarType;
info->OutputVolumeNumberOfComponents = info->InputVolumeNumberOfComponents;
for (i = 0; i < 3; ++i)
{
for (j = 0; j < 2; ++j)
{
if (info->CroppingPlanes && info->InputVolumeSpacing[i] > 0)
{
idx[j] = (int)
((info->CroppingPlanes[i*2+j]- info->InputVolumeOrigin[i]) /
info->InputVolumeSpacing[i] + 0.5);
}
else
{
idx[j] = 0;
}
if (idx[j] < 0)
{
idx[j] = 0;
}
if (idx[j] >= info->InputVolumeDimensions[i])
{
idx[j] = info->InputVolumeDimensions[i] - 1;
}
}
info->OutputVolumeDimensions[i] = idx[1] - idx[0] + 1;
info->OutputVolumeOrigin[i] =
info->InputVolumeOrigin[i] + idx[0] * info->InputVolumeSpacing[i];
info->OutputVolumeSpacing[i] = info->InputVolumeSpacing[i];
}
return 1;
}
void VV_PLUGIN_EXPORT vvCropInit(vtkVVPluginInfo *info)
{
/* always check the version */
vvPluginVersionCheck();
/* setup information that never changes */
info->ProcessData = ProcessData;
info->UpdateGUI = UpdateGUI;
info->SetProperty(info, VVP_NAME, "Crop");
info->SetProperty(info, VVP_GROUP, "Utility");
info->SetProperty(info, VVP_TERSE_DOCUMENTATION,
"Crop the current volume to fit within the current cropping planes");
info->SetProperty(info, VVP_FULL_DOCUMENTATION,
"This filter crops a volume to fit within the current settings of the cropping planes. (regardless of if they are currently visible). This is useful for reducing a large volume to a smaller subvolume prior to applying a time consuming localized segmentation algorithm");
info->SetProperty(info, VVP_SUPPORTS_IN_PLACE_PROCESSING, "0");
info->SetProperty(info, VVP_SUPPORTS_PROCESSING_PIECES, "0");
info->SetProperty(info, VVP_REQUIRED_Z_OVERLAP, "0");
info->SetProperty(info, VVP_NUMBER_OF_GUI_ITEMS, "0");
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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