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lesson5.cxx
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lesson5.cxx
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// This is a .vtk file viewer
// Test files can be found at https://www.vtk.org/vtk-textbook-examples-and-data/
#include <vtkDataObject.h>
#include <vtkDataSetMapper.h>
#include <vtkGenericDataObjectReader.h>
#include <vtkImageDataGeometryFilter.h>
#include <vtkPolyDataMapper.h>
#include <vtkSmartPointer.h>
#include "util.h"
int main(int argc, char* argv[])
{
if(argc!=2) {
std::cout << "Provide a vtk data file.\n";
return EXIT_FAILURE;
}
auto reader = vtkSmartPointer<vtkGenericDataObjectReader>::New();
if(argv[1]==nullptr) {
std::cout << "No input file.\n";
return EXIT_FAILURE;
}
reader->SetFileName(argv[1]);
reader->Update();
auto actor = vtkSmartPointer<vtkActor>::New();
if( reader->IsFilePolyData() ) {
auto mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(reader->GetOutputPort());
actor->SetMapper(mapper);
}
else if( reader->IsFileStructuredPoints() ) {
auto filter = vtkSmartPointer<vtkImageDataGeometryFilter>::New();
filter->SetInputConnection(reader->GetOutputPort());
auto mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(filter->GetOutputPort());
actor->SetMapper(mapper);
}
else if( reader->IsFileStructuredGrid() ) {
auto mapper = vtkSmartPointer<vtkDataSetMapper>::New();
mapper->SetInputConnection(reader->GetOutputPort());
actor->SetMapper(mapper);
}
else {
auto data = reader->GetOutput();
std::cout << data->GetClassName() << '\n';
std::cout << "Support for this file has not been implemented yet.\n";
return EXIT_FAILURE;
}
// displaying section
auto renderer = vtkSmartPointer<vtkRenderer>::New();
renderer->AddActor(actor);
CreateWindow(renderer);
return EXIT_SUCCESS;
}