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ccolin 2022-02-09 16:24:57 +01:00
parent c953cf6f6c
commit 65fd6f4b6a
3 changed files with 45 additions and 38 deletions
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15
CMakeLists.txt
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@ -7,4 +7,17 @@ add_subdirectory(external/vtk)
add_executable(pfe) add_executable(pfe)
target_sources(pfe PRIVATE src/main.cc) target_sources(pfe PRIVATE src/main.cc)
target_link_libraries(pfe PRIVATE VTK::CommonCore VTK::ViewsCore VTK::RenderingCore VTK::IOCore VTK::FiltersCore VTK::CommonColor VTK::GUISupportQt VTK::RenderingQt VTK::ViewsQt) target_link_libraries(pfe PRIVATE
VTK::CommonCore
VTK::ViewsCore
VTK::RenderingCore
VTK::IOCore
VTK::FiltersCore
VTK::CommonColor
VTK::GUISupportQt
VTK::RenderingQt
VTK::ViewsQt
VTK::RenderingVolume
VTK::CommonDataModel
VTK::IOLegacy
VTK::IOXML)

60
src/main.cc
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@ -8,61 +8,55 @@
#include <vtkRenderWindow.h> #include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h> #include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h> #include <vtkRenderer.h>
#include <vtkVolumeMapper.h>
#include <vtkVolume.h>
#include <vtkProjectedTetrahedraMapper.h>
#include <vtkDataSetReader.h>
#include <vtkPolyDataReader.h>
#include <vtkXMLPolyDataReader.h>
#include <array> #include <array>
int main(int, char*[]) { int main(int argc, char **argv) {
if (argc != 2) {
std::cerr << "Usage: " << argv[0] << " FILE.vtk" << std::endl;
return EXIT_FAILURE;
}
vtkNew<vtkNamedColors> colors; vtkNew<vtkNamedColors> colors;
// Set the background color.
std::array<unsigned char, 4> bkg{{26, 51, 102, 255}}; std::array<unsigned char, 4> bkg{{26, 51, 102, 255}};
colors->SetColor("BkgColor", bkg.data()); colors->SetColor("BkgColor", bkg.data());
// This creates a polygonal cylinder model with eight circumferential facets vtkNew<vtkXMLPolyDataReader> reader;
// (i.e, in practice an octagonal prism). reader->SetFileName(argv[1]);
vtkNew<vtkCylinderSource> cylinder;
cylinder->SetResolution(8);
// The mapper is responsible for pushing the geometry into the graphics // vtkNew<vtkProjectedTetrahedraMapper> volumeMapper;
// library. It may also do color mapping, if scalars or other attributes are // volumeMapper->SetInputConnection(reader->GetOutputPort());
// defined. vtkNew<vtkPolyDataMapper> mapper;
vtkNew<vtkPolyDataMapper> cylinderMapper; mapper->SetInputConnection(reader->GetOutputPort());
cylinderMapper->SetInputConnection(cylinder->GetOutputPort());
// The actor is a grouping mechanism: besides the geometry (mapper), it // vtkNew<vtkVolume> volume;
// also has a property, transformation matrix, and/or texture map. // volume->SetMapper(volumeMapper);
// Here we set its color and rotate it around the X and Y axes. vtkNew<vtkActor> actor;
vtkNew<vtkActor> cylinderActor; actor->SetMapper(mapper);
cylinderActor->SetMapper(cylinderMapper);
cylinderActor->GetProperty()->SetColor( actor->GetProperty()->SetColor(
colors->GetColor4d("Tomato").GetData()); colors->GetColor4d("Tomato").GetData());
cylinderActor->RotateX(30.0); actor->RotateX(30.0);
cylinderActor->RotateY(-45.0); actor->RotateY(-45.0);
// The renderer generates the image
// which is then displayed on the render window.
// It can be thought of as a scene to which the actor is added
vtkNew<vtkRenderer> renderer; vtkNew<vtkRenderer> renderer;
renderer->AddActor(cylinderActor); renderer->AddActor(actor);
renderer->SetBackground(colors->GetColor3d("BkgColor").GetData()); renderer->SetBackground(colors->GetColor3d("BkgColor").GetData());
// Zoom in a little by accessing the camera and invoking its "Zoom" method.
renderer->ResetCamera(); renderer->ResetCamera();
renderer->GetActiveCamera()->Zoom(1.5); renderer->GetActiveCamera()->Zoom(1.5);
// The render window is the actual GUI window
// that appears on the computer screen
vtkNew<vtkRenderWindow> renderWindow; vtkNew<vtkRenderWindow> renderWindow;
renderWindow->SetSize(300, 300); renderWindow->SetSize(300, 300);
renderWindow->AddRenderer(renderer); renderWindow->AddRenderer(renderer);
renderWindow->SetWindowName("Cylinder"); renderWindow->SetWindowName("Cylinder");
// The render window interactor captures mouse events
// and will perform appropriate camera or actor manipulation
// depending on the nature of the events.
vtkNew<vtkRenderWindowInteractor> renderWindowInteractor; vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
renderWindowInteractor->SetRenderWindow(renderWindow); renderWindowInteractor->SetRenderWindow(renderWindow);
// This starts the event loop and as a side effect causes an initial render.
renderWindow->Render(); renderWindow->Render();
renderWindowInteractor->Start(); renderWindowInteractor->Start();