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/*=========================================================================
Program: Visualization Toolkit
Module: TestExtractTimeSteps.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 "vtkExtractTimeSteps.h"
#include "vtkExodusIIReader.h"
#include "vtkInformation.h"
#include "vtkNew.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkTestUtilities.h"
#include <cmath>
enum
{
TEST_PASSED_RETVAL = 0,
TEST_FAILED_RETVAL = 1
};
const double e = 1e-5;
int TestExtractTimeSteps(int argc, char *argv[])
{
char *fname = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/can.ex2");
vtkNew<vtkExodusIIReader> reader;
reader->SetFileName(fname);
delete [] fname;
vtkNew<vtkExtractTimeSteps> extracter;
extracter->SetInputConnection(reader->GetOutputPort());
extracter->GenerateTimeStepIndices(0, 30, 5);
extracter->AddTimeStepIndex(30);
extracter->AddTimeStepIndex(35);
extracter->AddTimeStepIndex(30);
extracter->AddTimeStepIndex(40);
extracter->AddTimeStepIndex(43);
int numSteps = extracter->GetNumberOfTimeSteps();
if (numSteps != 10)
{
std::cout << "vtkExtractTimeSteps add time-steps failed" << std::endl;
return TEST_FAILED_RETVAL;
}
int tsteps[10];
extracter->GetTimeStepIndices(tsteps);
extracter->ClearTimeStepIndices();
extracter->SetTimeStepIndices(numSteps, tsteps);
extracter->Update();
double expected[10] = { 0.0000, 0.0005, 0.0010, 0.0015, 0.0020, 0.0025,
0.0030, 0.0035, 0.0040, 0.0043 };
double *result = NULL;
vtkInformation *info = extracter->GetOutputInformation(0);
if (info->Has(vtkStreamingDemandDrivenPipeline::TIME_STEPS()))
{
if (info->Length(vtkStreamingDemandDrivenPipeline::TIME_STEPS()) != 10)
{
std::cout << "got incorrect number of time steps" << std::endl;
return TEST_FAILED_RETVAL;
}
result = info->Get(vtkStreamingDemandDrivenPipeline::TIME_STEPS());
}
if (!result)
{
std::cout << "result has no time steps" << std::endl;
return TEST_FAILED_RETVAL;
}
else
{
for (int i = 0; i < 10; ++i)
{
if (std::abs(expected[i] - result[i]) > e)
{
std::cout << "extracted time steps values do not match" << std::endl;
return TEST_FAILED_RETVAL;
}
}
}
return TEST_PASSED_RETVAL;
}
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