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Mesh experto to QGIS
Posted: Sun Jan 05, 2025 8:00 pm
by jorgemat
Hello everybody.
I'm learning how to use CloudCompare to make DSM and DTM from point clouds, and I have the following beginner's question: how to export the mesh obtained with CSF Filter, to a raster file (tiff) so that I can use it it in QGIS?
I appreciate your help.
Re: Mesh experto to QGIS
Posted: Sun Jan 05, 2025 9:44 pm
by daniel
You have to use the Rasterize tool (
https://www.cloudcompare.org/doc/wiki/i ... /Rasterize).
And if you have a mesh, you'll have to convert it to a point cloud first (with 'Edit > Mesh > Sample points').
Re: Mesh experto to QGIS
Posted: Mon Jan 06, 2025 11:07 am
by jorgemat
Dear Daniel
Thank you for your quick response and solution.
The only problem now is that, when I open the raster in QGIS, it is out of place. Apparently the coordinates are wrong, which doesn't happen when I Rasterize the normal point cloud.
Can you give a solution for this?
Thanks.
Re: Mesh experto to QGIS
Posted: Mon Jan 06, 2025 11:41 am
by daniel
Which version of CloudCompare are you using?
Re: Mesh experto to QGIS
Posted: Mon Jan 06, 2025 12:19 pm
by jorgemat
Hi Daniel
I am using the 2.13.2 version.
Re: Mesh experto to QGIS
Posted: Mon Jan 06, 2025 4:55 pm
by daniel
Ok, I thought this was fixed in 2.14.alpha, but it was not... I've fixed it and uploaded a new version today (2.14.alpha 1/6/2025).
It should solve the issue of losing the Global shift when running CSF. And you'll be able to rasterize the resulting cloud/mesh and keep the large coordinates.
Re: Mesh experto to QGIS
Posted: Tue Jan 07, 2025 11:07 am
by jorgemat
Dear Daniel
Everything works out now.
I downloaded the new version 2.14 and remade the mesh with the CSF plugin and recorded the new raster. When I moved the new raster (geotiff) to QGIS, It was in the right place.
I feel very honored that you made this adjustment to the software due to my question. God bless you.
Thank you very much.
Jorge Matos