Page 1 of 1

create digital elevation models

Posted: Thu Oct 07, 2021 3:01 pm
by THLAB35
Hello,

I enter a problem when creating a DEM. I can't get slopes identical to the real one.

I have tried several treatments using CSF filter, but I don't get the expected result.

Does anyone have an idea? Thank you in advance.

Thibault

Re: create digital elevation models

Posted: Sun Oct 10, 2021 1:11 pm
by daniel
Hard to visualize, but it seems that too much points are removed from the original cloud by the CSF plugin? What does the original cloud look like?

Re: create digital elevation models

Posted: Fri Mar 08, 2024 11:15 am
by amirfarshadfar
Hi

I have a question. Could you please guide me what to do.
I want a DEM file related to the top of trees and vegetations, is it available in any website or utility like Lidar, SAR, .. (with good precision) to be achieved? Which of them do that for me with high precision?

The most important thing is to evaluate the height of trees or have the elevation of top of trees and vegetation. Is there any source for them, even if it is possible to download it or achieve it for different year?

Thanks for your guidance

Re: create digital elevation models

Posted: Fri Mar 08, 2024 3:37 pm
by daniel
So the easiest way would probably to use the 'Rasterize' tool, keeping the highest altitude in each cell (see https://www.cloudcompare.org/doc/wiki/i ... /Rasterize).