Get the visible lines from the projection plane

[alexander.westrup]

Hi all!

Im working on a project where i want to export all visible lines in a View3D view or a ViewSection. I have no problem finding the elements or to get every edge from them, but the problem is that those coordinates are in world coordinate system (3D) whereas i want mine in view coordinate system (x = right, y = up, z = towards view) as they are drawn on the projection plane / viewport on screen.

Do anybody know how this is done or where i can look to get more ideas?

Thx /Alex

[Ning Zhou]

check Transform class in Revit API help document, plus ProjectLocation class if needed

[christopherkropp684267]

I cannot manage to get the visible lines in a View3D. Can somebody offer some hint?

Thanks,
Chris