In reply to your previous e-mail about vtkFollowers I sent you the utils
file which computes the size of a pixel in mm back-projected to a
certain position in 3D space.
It uses vtk machinery to do the projection and I think it might give you
some hints about how to achieve what you want. I didn't manage to do
that using mitk-only functionality.
Rostislav.
On 03/09/2015 23:17, Federico Milano wrote:
Hi. I'm trying to obtain the 2D (projected) coordinates of a 3D point
in the 3d window of the stdmultiwidget. Since Im using 2014.03 Im
doing the following:
displayGeometry->Project(p, projected_p);
displayGeometry->Map(projected_p, pt2d);
displayGeometry->WorldToDisplay(pt2d, pt2d);
The problem is that if I rotate or translate or zoom the camera (my 3d
point is not in the focal point) I always get the same 2D coordinates.
What would be the procedure to obtain the projected 2D position of a
3D world coordinate. Should I fall back to VTK?
Thanks in advance!
Federico
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