VTK/CommonProblems
From KitwarePublic
< VTK
- error: forward declaration of ‘struct vtkXYZ’
Problem
actor->GetProperty()->SetColor(0, 1, 0);
error: forward declaration of ‘struct vtkProperty’
Explanation The GetProperty() function returns a vtkProperty object. Even though you didn't need to reference it explicitly, the compiler still needs to know what it is!
Solution This is solved by simply including vtkProperty.h:
#include <vtkProperty.h>
