BBTK_DECLARE_INPUT(Title,std::string);
BBTK_DECLARE_INPUT(In, vtkImageData *);
BBTK_DECLARE_INPUT(nTypeView, std::vector<int> );
+ BBTK_DECLARE_INPUT(ColorFunction, vtkColorTransferFunction* );
BBTK_DECLARE_OUTPUT(wxVtkBaseView1,wxVtkBaseView*);
BBTK_DECLARE_OUTPUT(wxVtkBaseView2,wxVtkBaseView*);
BBTK_DECLARE_OUTPUT(wxVtkBaseView3,wxVtkBaseView*);
BBTK_INPUT(ViewerNV,Title,"Title prepended to the text",std::string,"");
BBTK_INPUT(ViewerNV,In,"Input image",vtkImageData*,"");
BBTK_INPUT(ViewerNV,nTypeView,"vector of viewer types (default 5 0 1 3 ): -1=Z_2DwithOutAxis 0=Z_2D 1=X_2D 2=Y_2D 3=Plane 4=Sphere 5=3D 6=3Dplane",std::vector<int>,"");
+ BBTK_INPUT(ViewerNV,ColorFunction,"Optional: set a different color for the viewers 2D",vtkColorTransferFunction*,"");
BBTK_OUTPUT(ViewerNV,wxVtkBaseView1,"wxVtkBaseView 1",wxVtkBaseView *,"");
BBTK_OUTPUT(ViewerNV,wxVtkBaseView2,"wxVtkBaseView 2",wxVtkBaseView *,"");
BBTK_OUTPUT(ViewerNV,wxVtkBaseView3,"wxVtkBaseView 3",wxVtkBaseView *,"");