How to show different "flux" with different colors in meshlab?

[jmespadero]

I bring here the question at https://stackoverflow.com/questions/79475766/how-to-show-different-flux-with-different-colors-in-meshlab

I have a txt file with the first 3 columns being the point cloud coordinates (x,y,z). The fourth column has the corresponding the flux values. I want to load this into meshlab and have colors of each point based on the flux values. Is this possible?

[jmespadero]

1. Save your file with .txt extension.
2. Import into meshlab and check the options as image below:

This will load the "Flux" values as a per-vertex-quality value.

3. Apply the filter Colorize by vertex Quality
4. Select Shading -> Dot Decorator
5. Enjoy.

If you are not happy with the colors, you can use the Quality Mapper to generate the palette as desired.