Chunyan Jiang wrote:

Hi all,
Does anybody use vtk with fltk?
How to render vtk object in fltk window?

Looking forward your reply.

Chunyan

---------------------------------------------
/**
 * Simple vtk tryout
 */

#include <vld.h>
#include <FL/Fl.H>
#include <FL/x.H>
#include <FL/Fl_Window.H>
#define VTK_USE_ANSI_STDLIB // <iostream> not <iostream.h>
#include <vtk/vtkRenderer.h>
#include <vtk/vtkWin32OpenGLRenderWindow.h>
#include <vtk/vtkPolyDataMapper.h>
#include <vtk/vtkActor.h>
#include <vtk/vtkSphereSource.h>

/**
 * @brief simple VTK window
 */
class SimpleVTKWnd : public Fl_Window {
public:
  SimpleVTKWnd(int iW, int iH, const char* psCapt =0)
      : Fl_Window(iW,iH,psCapt) {
    m_pRen          = vtkRenderer::New();
    m_pRenWin       = vtkWin32OpenGLRenderWindow::New();
    m_pSphere       = vtkSphereSource::New();
    m_pSphereMapper = vtkPolyDataMapper::New();
    m_pSphereActor  = vtkActor::New();
  }

  virtual ~SimpleVTKWnd() {
    m_pSphereActor->Delete();
    m_pSphereMapper->Delete();
    m_pSphere->Delete();
    m_pRenWin->Delete();
    m_pRen->Delete();
  }

  virtual void draw() {
    static bool bInit(false);
    if (!bInit) {
      m_pRenWin->AddRenderer(m_pRen);
      m_pRenWin->SetParentId(fl_xid(this));
      m_pRenWin->SetSize(w(),h());
      m_pRen->ResetCamera();
      m_pSphere->SetRadius(5);
      m_pSphere->SetThetaResolution(24);
      m_pSphere->SetPhiResolution(24);
      m_pSphere->LatLongTessellationOn();
      m_pSphereMapper->SetInput(m_pSphere->GetOutput());
      m_pSphereMapper->SetColorModeToMapScalars();
      m_pSphereMapper->SetScalarRange(-1,1);
      m_pSphereActor->SetMapper(m_pSphereMapper);
      m_pRen->AddActor(m_pSphereActor);
      bInit = true;
    }
    m_pRenWin->Render();
  }

private:
  vtkRenderer*                m_pRen;
  vtkWin32OpenGLRenderWindow* m_pRenWin;
  vtkSphereSource*            m_pSphere;
  vtkPolyDataMapper*          m_pSphereMapper;
  vtkActor*                   m_pSphereActor;
};

/**
 * @brief Main method
 */
int main(int argc, char **argv) {
  SimpleVTKWnd vtkWnd(500,500);
  vtkWnd.end();
  vtkWnd.show(argc, argv);
  return Fl::run();
}
---------------------------------------------
Cheers