[vtkusers] Short question: how to get the 2d position in renderer of a 3d point

[Jochen Giese]

Hi,

It is possible to get the position of the renderer(-window) of a "3d-point",
if the point would be in the renderer, and if yes, how?

I want to get the 2d-position of a point in the "world", because I want to
display a 2d Text under a point.

Thank you for helping me
Jochen Giese