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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) GeometryFactory
// SPDX-License-Identifier: BSD-3-Clause
// .NAME Test of vtkSEPReader
// .SECTION Description
// Load a SEP file, check the grid and render it.
#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkDataSetSurfaceFilter.h>
#include <vtkImageData.h>
#include <vtkImageMapToColors.h>
#include <vtkLookupTable.h>
#include <vtkNew.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSEPReader.h>
#include <vtkTestUtilities.h>
int TestSEPReader(int argc, char* argv[])
{
char* fname = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/small.H");
const std::string filename = fname;
delete[] fname;
vtkNew<vtkSEPReader> SEPReader;
// Check the image can be read
if (!SEPReader->CanReadFile(filename.c_str()))
{
std::cerr << "CanReadFile failed for " << filename << "\n";
return EXIT_FAILURE;
}
// Read the input image
SEPReader->SetFileName(filename.c_str());
SEPReader->SetFixedDimension1("DEPTH");
SEPReader->SetFixedDimensionValue1(0);
SEPReader->Update();
// Check the image properties
auto extents = SEPReader->ComputeExtent();
if (extents[0] != 0 || extents[1] != 4 || extents[2] != 0 || extents[3] != 4 || extents[4] != 0 ||
extents[5] != 3)
{
std::cerr << "Unexpected data extents!" << std::endl;
std::cerr << extents[0] << " " << extents[1] << " " << extents[2] << " " << extents[3] << " "
<< extents[4] << " " << extents[5] << std::endl;
return EXIT_FAILURE;
}
const double* origin = SEPReader->GetDataOrigin();
if (origin[0] != 0. || origin[1] != 0. || origin[2] != 0.)
{
std::cerr << "Unexpected data origin!" << std::endl;
return EXIT_FAILURE;
}
const double* spacing = SEPReader->GetDataSpacing();
if (spacing[0] != 1. || spacing[1] != 1. || spacing[2] != 1.)
{
std::cerr << "Unexpected data spacing!" << std::endl;
return EXIT_FAILURE;
}
// Visualize the grid
double scalarRange[2];
SEPReader->GetOutput()->GetScalarRange(scalarRange);
vtkNew<vtkLookupTable> table;
table->SetRampToLinear();
table->SetRange(scalarRange[0], scalarRange[1]);
table->SetValueRange(0.0, 1.0);
table->SetSaturationRange(0.0, 0.0);
table->SetAlphaRange(1.0, 1.0);
table->Build();
vtkNew<vtkImageMapToColors> colors;
colors->SetInputConnection(SEPReader->GetOutputPort());
colors->SetLookupTable(table);
vtkNew<vtkDataSetSurfaceFilter> surface;
surface->SetInputConnection(colors->GetOutputPort());
vtkNew<vtkPolyDataMapper> mapper;
mapper->SetInputConnection(surface->GetOutputPort());
mapper->ScalarVisibilityOn();
mapper->SelectColorArray("ImageScalars");
mapper->SetColorModeToMapScalars();
vtkNew<vtkActor> actor;
actor->SetMapper(mapper);
actor->GetProperty()->EdgeVisibilityOn();
vtkNew<vtkRenderer> ren;
ren->SetBackground(0, 0, 0);
ren->AddActor(actor);
ren->ResetCamera();
double z1 = ren->GetActiveCamera()->GetPosition()[2];
ren->GetActiveCamera()->SetPosition(0.25 * z1, 0.25 * z1, 0.5 * z1);
ren->GetActiveCamera()->SetFocalPoint(0., 0., 0.);
ren->ResetCamera();
vtkNew<vtkRenderWindow> renWin;
renWin->SetSize(300, 300);
renWin->AddRenderer(ren);
vtkNew<vtkRenderWindowInteractor> iren;
iren->SetRenderWindow(renWin);
iren->Start();
return EXIT_SUCCESS;
}
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