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3D NDVI

Posted: Mon Nov 20, 2023 3:48 pm
by Shawn
I am Shawn, a student focusing on 3D NDVI model.

Now I have generated a 3D point cloud which has R,G,NIR value in each point. I want to transfer the value of each point to NDVI (NDVI=(R-NIR)/(R+NIR)) and show the color as a pseudo-color. How can I define the scalar field by myself?

Shawn

Re: 3D NDVI

Posted: Tue Nov 21, 2023 2:26 pm
by daniel
So either you use a script before loading the file in CloudCompare :p

Or you use the SF Arithmetic tool (https://www.cloudcompare.org/doc/wiki/i ... Arithmetic). It's just a bit more cumbersome as you have to do it with multiple steps (create a new SF with 'R-NIR', and another one with 'R+NIR', and then divide these 2 scalar fields).