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/*=========================================================================
Program: Visualization Toolkit
Module: TestOBJReaderMaterials.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.
=========================================================================*/
// .NAME Verifies that vtkOBJReader does something sensible w/rt materials.
// .SECTION Description
//
#include "vtkOBJReader.h"
#include "vtkCellData.h"
#include "vtkStringArray.h"
#include "vtkTestUtilities.h"
int TestOBJReaderMaterials(int argc, char* argv[])
{
int retVal = 0;
// Create the reader.
char* fname = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/obj_with_materials.obj");
vtkSmartPointer<vtkOBJReader> reader = vtkSmartPointer<vtkOBJReader>::New();
reader->SetFileName(fname);
reader->Update();
delete[] fname;
vtkPolyData* data = reader->GetOutput();
if (!data)
{
std::cerr << "Could not read data" << std::endl;
return 1;
}
vtkStringArray* mna =
vtkStringArray::SafeDownCast(data->GetFieldData()->GetAbstractArray("MaterialNames"));
if (!mna)
{
std::cerr << "missing material names array" << std::endl;
return 1;
}
vtkIntArray* mia =
vtkIntArray::SafeDownCast(data->GetCellData()->GetAbstractArray("MaterialIds"));
if (!mia)
{
std::cerr << "missing material id array" << std::endl;
return 1;
}
if (data->GetNumberOfCells() != 2)
{
std::cerr << "wrong number of cells" << std::endl;
return 1;
}
int matid = mia->GetVariantValue(1).ToInt();
std::string matname = mna->GetVariantValue(matid).ToString();
if (matname != "Air")
{
std::cerr << "wrong material for" << std::endl;
return 1;
}
return retVal;
}
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