[vtkusers] inheriting from a VTK class

[Pankaj Daga]

Hi folks,

I have run into trouble trying to derive from a VTK class. I am trying to
override the render function of the vtkImageViewer2. Here is my code. Should
be pretty simple, but for some reason when I try to use it, it comes up with
a linker error...saying undefined reference to MyViewer::New()

Here is my code:

// Header file:

#include "vtkImageViewer2.h"

class MyViewer : public vtkImageViewer2
{
    public:
        static MyViewer *New();
        vtkTypeRevisionMacro(MyViewer,vtkImageViewer2);
        void PrintSelf(ostream& os, vtkIndent indent);


    virtual void Render(void)
    {}

    protected:
        MyViewer()
            :vtkImageViewer2()
        {}

        ~MyViewer()
        {}
    };


// Implementation file
vtkCxxRevisionMacro(MyViewer, "$Revision: 1.0 $");
vtkStandardNewMacro(MyViewer);

//----------------------------------------------------------------------------

void MyViewer::PrintSelf(ostream& os, vtkIndent indent)
{
    vtkImageViewer2::PrintSelf();

}


Any help would be appreciated.

Thanks,
Luca
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