Apologies if this is a repeat question guys.
I am trying to create a 3D bathymetry surface from xyz data.
There is approximately 300,000 points with lat, long and z (depth data). The data is sonar point data similar to lidar data.
I want to use GRASS and I'm looking around for the right functions.
I can import the data to grass with v.in.ascii -z and I tried using v.extrude which killed my computer (must be the number of points)
I might be able to create contours in qgis and use v.to.rast and r.surf.contour but I think I'll lose resolution if it works at all.
I'm not familiar with grass and I guess that, this is probably a relatively easy thing to do but I've hit a wall with it. I would imagine someone has encountered this before.
Any help would be greatly appreciated.
Best regards
Kieran
أكثر...
I am trying to create a 3D bathymetry surface from xyz data.
There is approximately 300,000 points with lat, long and z (depth data). The data is sonar point data similar to lidar data.
I want to use GRASS and I'm looking around for the right functions.
I can import the data to grass with v.in.ascii -z and I tried using v.extrude which killed my computer (must be the number of points)
I might be able to create contours in qgis and use v.to.rast and r.surf.contour but I think I'll lose resolution if it works at all.
I'm not familiar with grass and I guess that, this is probably a relatively easy thing to do but I've hit a wall with it. I would imagine someone has encountered this before.
Any help would be greatly appreciated.
Best regards
Kieran
أكثر...