VisualDebugging
VTKExamples/Cxx/Demos/VisualDebugging
Code
VisualDebugging.cxx
#include <vtkSphereSource.h>
#include <vtkObjectFactory.h>
#include <vtkCommand.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include "vtkTestFilter.h"
class CustomStyle : public vtkInteractorStyleTrackballCamera
{
public:
static CustomStyle* New();
vtkTypeMacro(CustomStyle, vtkInteractorStyleTrackballCamera);
CustomStyle()
{
this->Actor = vtkSmartPointer<vtkActor>::New();
this->Mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
this->Filter = vtkSmartPointer<vtkTestFilter>::New();
}
void CallbackFunction(vtkObject* caller,
long unsigned int eventId,
void* callData )
{
std::cout << "CustomStyle::CallbackFunction called." << std::endl;
vtkPolyData* intermediate = this->Filter->GetIntermediateOutput();
intermediate->Modified();
this->Mapper->SetInput(intermediate);
this->Renderer->ResetCamera();
this->Renderer->Render();
this->Interactor->GetRenderWindow()->Render();
}
void OnKeyPress()
{
// Get the keypress
std::string key = this->Interactor->GetKeySym();
if(key == "s") // 'S'tart
{
this->Renderer->AddActor(this->Actor);
this->Filter->AddObserver(this->Filter->RefreshEvent, this, &CustomStyle::CallbackFunction);
this->Filter->Update();
this->Actor->SetMapper(this->Mapper);
}
// Forward events
vtkInteractorStyleTrackballCamera::OnKeyPress();
}
vtkRenderer* Renderer;
vtkSmartPointer<vtkActor> Actor;
vtkSmartPointer<vtkPolyDataMapper> Mapper;
vtkSmartPointer<vtkTestFilter> Filter;
};
vtkStandardNewMacro(CustomStyle);
int main(int argc, char *argv[])
{
// Create a renderer, render window, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderer->SetBackground(1,1,1); // White
vtkSmartPointer<CustomStyle> style =
vtkSmartPointer<CustomStyle>::New();
style->Renderer = renderer;
renderWindowInteractor->SetInteractorStyle(style);
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(VisualDebugging)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(VisualDebugging MACOSX_BUNDLE VisualDebugging.cxx)
target_link_libraries(VisualDebugging ${VTK_LIBRARIES})
Download and Build VisualDebugging
Click here to download VisualDebugging and its CMakeLists.txt file. Once the tarball VisualDebugging.tar has been downloaded and extracted,
cd VisualDebugging/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:
./VisualDebugging
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.