[vtkusers] BoxWidget + VolumeMapper errors

[Mathieu Malaterre]

Dean,

	why don't you simply use:

void vtkAbstractMapper::SetClippingPlanes( vtkPlanes * planes )

	This seems to be much easier to use, right ?

HTH
Mathieu


dean.inglis at camris.ca wrote:
> I am trying to use vtkBoxWidget with a callback to send its vtkPlanes 
> to a vtkVolumeMapper as in 
> VTK/Examples/GUI/Tcl/VolumeRenderWithBoxWidget.tcl
> Apparently, I should be passing in a vtkPlaneCollection, so I tried
> modifying my callback:
> 
> class vtkBWCallback : public vtkCommand
> {
> public:
>   static vtkBWCallback *New()
>     { return new vtkBWCallback; }
> 
>   virtual void Execute(vtkObject *caller, unsigned long, void*)
>     {
>       vtkBoxWidget *box = reinterpret_cast<vtkBoxWidget*>(caller);
>       box->GetPlanes( planes);
>       collection->RemoveAllItems();
>       for (int i = 0; i < planes->GetNumberOfPlanes(); i++)
>         {
>         collection->AddItem( planes->GetPlane(i) );
>         }
>       mapper->SetClippingPlanes( collection );
>     }
>   vtkBWCallback():planes(0),mapper(0),pc(0){};
> 
>   vtkPlanes* planes;
>   vtkPlaneCollection* collection;
>   vtkVolumeTextureMapper2D* mapper;
> };
> 
> no luck!
> 
> I only get one plane acting as a clipping plane in both my .cxx app
>  and in the above VTK tcl example.  The plane with unit normal
> originally in the +z direction is the only valid plane.
> Can anyone else verify this error?  This is seen on two builds: 
> 
> 1) Borland C++ Builder vers. 5 , Win 2k Pro, Pentium 4,  
> NVIDIA GeForce4 Ti 4400, driver 5.3.0.3, CMake 2.0.0, latest VTK cvs
> 
> 2) Borland C++ Builder vers. 6 , Win 2k Pro, Pentium 4 mobile, 
> NVIDIA Quadro4 500 GoGL,  driver 2.9.4.0, CMake 2.0.0, latest VTK cvs
> 
> Dean
> 
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