ShareCameraQt

VTKExamples/Cxx/Qt/ShareCameraQt

Code

ShareCameraQt.cxx

#include "ShareCameraQt.h"

#include <vtkDataObjectToTable.h>
#include <vtkElevationFilter.h>
#include <vtkPolyDataMapper.h>
#include <vtkQtTableView.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkSphereSource.h>
#include <vtkCubeSource.h>

#include "vtkSmartPointer.h"

// Constructor
ShareCameraQt::ShareCameraQt() 
{
  this->setupUi(this);

  // Sphere
  vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->Update();
  vtkSmartPointer<vtkPolyDataMapper> sphereMapper =vtkSmartPointer<vtkPolyDataMapper>::New();
  sphereMapper->SetInputConnection(sphereSource->GetOutputPort());
  vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New();
  sphereActor->SetMapper(sphereMapper);

  // Cube
  vtkSmartPointer<vtkCubeSource> cubeSource = vtkSmartPointer<vtkCubeSource>::New();
  cubeSource->Update();
  vtkSmartPointer<vtkPolyDataMapper> cubeMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
  cubeMapper->SetInputConnection(cubeSource->GetOutputPort());
  vtkSmartPointer<vtkActor> cubeActor = vtkSmartPointer<vtkActor>::New();
  cubeActor->SetMapper(cubeMapper);

  // VTK Renderer
  vtkSmartPointer<vtkRenderer> leftRenderer = vtkSmartPointer<vtkRenderer>::New();
  leftRenderer->AddActor(sphereActor);

  vtkSmartPointer<vtkRenderer> rightRenderer = vtkSmartPointer<vtkRenderer>::New();

  // Add Actor to renderer
  rightRenderer->AddActor(cubeActor);

  // VTK/Qt wedded
  this->qvtkWidgetLeft->GetRenderWindow()->AddRenderer(leftRenderer);
  this->qvtkWidgetRight->GetRenderWindow()->AddRenderer(rightRenderer);

  rightRenderer->ResetCamera();
  leftRenderer->ResetCamera();

  rightRenderer->SetActiveCamera(leftRenderer->GetActiveCamera());

  // Set up action signals and slots
  connect(this->actionExit, SIGNAL(triggered()), this, SLOT(slotExit()));

  //this->qvtkWidgetLeft->GetRenderWindow()->AddObserver(vtkCommand::ModifiedEvent, this, &ShareCameraQt::ModifiedHandler);
  this->qvtkWidgetLeft->GetRenderWindow()->AddObserver(vtkCommand::AnyEvent, this, &ShareCameraQt::ModifiedHandler);

}

void ShareCameraQt::ModifiedHandler() 
{
  this->qvtkWidgetRight->GetRenderWindow()->Render();
}

void ShareCameraQt::slotExit() 
{
  qApp->exit();
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(ShareCameraQt)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(ShareCameraQt MACOSX_BUNDLE ShareCameraQt.cxx)

target_link_libraries(ShareCameraQt ${VTK_LIBRARIES})

Download and Build ShareCameraQt

Danger

The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.

Click here to download ShareCameraQt and its CMakeLists.txt file. Once the tarball ShareCameraQt.tar has been downloaded and extracted,

cd ShareCameraQt/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:

./ShareCameraQt

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.