DInsight

hi. I am a newbie
I am looking at using dgk with Visual Basic.
Is there a way to select a point in a point cloud?
Thanks

Hi Mark
I do not believe there is "off the shelf" functionality for this. It is simple to code:

You probably need for a selection rectangle, which you have in pixels, to get coordinates of points which are under it in 3d?

For a 3d point to check whether it is under the selection rectangle use IView_DG.ProjectToScreen(Point_DG point3D). It returns pixels. Check that it is inside the selection area. Repeat this for all points in the cloud.

Regards
Alfio

Nice. Thank you