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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkDebugLeaks.h"
#include "vtkOBJReader.h"
#include "vtkCellArray.h"
#include "vtkNew.h"
#include "vtkPointData.h"
#include "vtkTestUtilities.h"
//------------------------------------------------------------------------------
int TestOBJReaderSingleTexture(int argc, char* argv[])
{
// Create the reader.
char* fname = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/obj_singletexture.obj");
vtkNew<vtkOBJReader> reader;
reader->SetFileName(fname);
reader->Update();
vtkPolyData* data = reader->GetOutput();
delete[] fname;
if (!data)
{
std::cerr << "Could not read data" << std::endl;
return EXIT_FAILURE;
}
// The OBJ file has 4 points and 2 cells.
if (data->GetNumberOfPoints() != 4 && data->GetNumberOfCells() == 2)
{
std::cerr << "Invalid number of points or cells" << std::endl;
return EXIT_FAILURE;
}
vtkDataArray* tCoords = data->GetPointData()->GetTCoords();
if (!tCoords)
{
std::cerr << "Could not find texture coordinates array" << std::endl;
return EXIT_FAILURE;
}
if (strcmp(tCoords->GetName(), "Material0") != 0)
{
std::cerr << "Invalid texture coordinates array name" << std::endl;
return EXIT_FAILURE;
}
// Check the values
for (int i = 0; i < 4; ++i)
{
double* currentTCoord = tCoords->GetTuple2(i);
if (i == 2)
{
if (currentTCoord[0] != 1.0 && currentTCoord[1] != 1.0)
{
std::cerr << "Unexpected texture values" << std::endl;
return EXIT_FAILURE;
}
}
if (currentTCoord[0] < 0. || currentTCoord[1] > 1.0)
{
std::cerr << "Unexpected texture values" << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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