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/*=========================================================================
Program: Visualization Toolkit
Module: ImageAccumulate.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 "vtkImageData.h"
#include "vtkImageSinusoidSource.h"
#include "vtkImageAccumulate.h"
#include "vtkImageViewer.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkTestUtilities.h"
#include "vtkRegressionTestImage.h"
#include <math.h>
int ImageAccumulate(int , char *[])
{
int rval = 0;
// Create a blank image
vtkImageSinusoidSource *sinus = vtkImageSinusoidSource::New();
sinus->SetWholeExtent(0,512-1,0,512-1,0,64-1);
sinus->SetAmplitude( 0 );
sinus->Update();
// Set some value
sinus->GetOutput()->SetScalarComponentFromDouble ( 0, 0, 0, 0, 1);
sinus->GetOutput()->SetScalarComponentFromDouble ( 10, 10, 10, 0, 2);
sinus->GetOutput()->SetScalarComponentFromDouble ( 10, 100, 20, 0, 3);
sinus->GetOutput()->SetScalarComponentFromDouble (100, 10, 30, 0, 4);
sinus->GetOutput()->SetScalarComponentFromDouble (100, 100, 40, 0, 5);
vtkImageAccumulate *acc = vtkImageAccumulate::New();
acc->SetInputConnection( sinus->GetOutputPort() );
//acc->IgnoreZeroOn();
acc->Update();
acc->Print(cout);
double min[3], max[3];
acc->GetMin(min);
acc->GetMax(max);
if( min[0] != 0 )
{
cerr << "Min: " << min[0] << endl;
rval++;
}
if( max[0] != 5 )
{
cerr << "Max: " << max[0] << endl;
rval++;
}
double mean[3];
long int voxcount;
voxcount = acc->GetVoxelCount();
acc->GetMean(mean);
double m = double(1+2+3+4+5)/voxcount;
if( fabs(mean[0] - m) > 1e-10 )
{
cerr << "Mean: " << mean[0] << endl;
rval++;
}
// Test IgnoreZero option
acc->IgnoreZeroOn();
acc->Update();
acc->Print( cout );
// Simple test
acc->GetMin(min);
acc->GetMax(max);
if( min[0] != 1 )
{
cerr << "Min: " << min[0] << endl;
rval++;
}
if( max[0] != 5 )
{
cerr << "Max: " << max[0] << endl;
rval++;
}
acc->GetMean(mean);
if( mean[0] != double(1+2+3+4+5)/5 )
{
cerr << "Mean: " << mean[0] << endl;
rval++;
}
sinus->Delete();
acc->Delete();
return rval;
}
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