Creating surface points for water?

[ThorThor]

Hello,

I have a point cloud created from photogrammetry with a 300m wide river running through it. The point cloud of the water surface has noisy points near the shoreline, with no points points in the middle. I have cleaned up (deleted) the water point noise near the shorelines by segmenting out and deleting those points.

I want to model the general water height to add to my point cloud for use in a profile. Is there a way to select points on both shorelines and create a surface with points between the two shorelines?

Thanks!

[daniel]

Well, it might not be super nice, but you could mesh the cloud (keeping points on both sides) either with 'Edit > Mesh > Delaunay 2.5D' or the Poisson Reconstruction plugin if you want a smoother result (but you'll need to compute normals first and tinker a little bit with the plugin parameters). Then, if you have a valid surface mesh, you can sample points on this mesh to generate the missing points.