#include <vtkSmartPointer.h>
#include <vtkObjectFactory.h>
#include <vtkSphereSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkCommand.h>
class CommandSubclass2 : public vtkCommand
{
public:
vtkTypeMacro(CommandSubclass2, vtkCommand);
static CommandSubclass2 *New()
{
return new CommandSubclass2;
}
void Execute(vtkObject *vtkNotUsed(caller), unsigned long vtkNotUsed(eventId),
void *vtkNotUsed(callData))
{
std::cout << "timer callback" << std::endl;
}
};
int main(int, char *[])
{
// Create a sphere
vtkSmartPointer sphereSource =
vtkSmartPointer::New();
sphereSource->Update();
// Create a mapper and actor
vtkSmartPointer mapper =
vtkSmartPointer::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer actor =
vtkSmartPointer::New();
actor->SetMapper(mapper);
// Create a renderer, render window, and interactor
vtkSmartPointer renderer =
vtkSmartPointer::New();
vtkSmartPointer renderWindow =
vtkSmartPointer::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer renderWindowInteractor =
vtkSmartPointer::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
// Initialize must be called prior to creating timer events.
renderWindowInteractor->Initialize();
renderWindowInteractor->CreateRepeatingTimer(500);
vtkSmartPointer timerCallback =
vtkSmartPointer::New();
renderWindowInteractor->AddObserver ( vtkCommand::TimerEvent, timerCallback );
// Add the actor to the scene
renderer->AddActor(actor);
renderer->SetBackground(1,1,1); // Background color white
// Render and interact
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
the code is like this, But I don’t know how to pass parameter to eventId and callData?
https://lorensen.github.io/VTKExamples/site/Cxx/Utilities/CommandSubclass/