RubberBand3D
vtk-examples/Cxx/Interaction/RubberBand3D
Question
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Code¶
RubberBand3D.cxx
#include <vtkActor.h>
#include <vtkInteractorStyleRubberBand3D.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>
namespace {
class MyRubberBand3D : public vtkInteractorStyleRubberBand3D
{
public:
static MyRubberBand3D* New();
vtkTypeMacro(MyRubberBand3D, vtkInteractorStyleRubberBand3D);
virtual void OnLeftButtonUp() override
{
// Forward events.
vtkInteractorStyleRubberBand3D::OnLeftButtonUp();
std::cout << "Start position: " << this->StartPosition[0] << " "
<< this->StartPosition[1] << std::endl;
std::cout << "End position: " << this->EndPosition[0] << " "
<< this->EndPosition[1] << std::endl;
}
};
vtkStandardNewMacro(MyRubberBand3D);
} // namespace
int main(int, char*[])
{
vtkNew<vtkNamedColors> colors;
vtkNew<vtkSphereSource> sphereSource;
// Create a mapper and actor.
vtkNew<vtkPolyDataMapper> mapper;
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkNew<vtkActor> actor;
actor->SetMapper(mapper);
actor->GetProperty()->SetColor(colors->GetColor3d("MistyRose").GetData());
// A renderer and render window.
vtkNew<vtkRenderer> renderer;
vtkNew<vtkRenderWindow> renderWindow;
renderWindow->AddRenderer(renderer);
renderWindow->SetWindowName("RubberBand3D");
// An interactor
vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actors to the scene.
renderer->AddActor(actor);
renderer->SetBackground(colors->GetColor3d("SlateGray").GetData());
renderWindow->Render();
vtkNew<MyRubberBand3D> style;
renderWindowInteractor->SetInteractorStyle(style);
// Begin mouse interaction.
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(RubberBand3D)
find_package(VTK COMPONENTS
)
if (NOT VTK_FOUND)
message(FATAL_ERROR "RubberBand3D: Unable to find the VTK build folder.")
endif()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(RubberBand3D MACOSX_BUNDLE RubberBand3D.cxx )
target_link_libraries(RubberBand3D PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS RubberBand3D
MODULES ${VTK_LIBRARIES}
)
Download and Build RubberBand3D¶
Click here to download RubberBand3D and its CMakeLists.txt file. Once the tarball RubberBand3D.tar has been downloaded and extracted,
cd RubberBand3D/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./RubberBand3D
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.