CloudCompare forum

Its my edited post.
my version 2.5.1
I have a las file of very big size. I save it in two formates and have following difficulties.

* las
if I save a small part of it it as las and read it again, I 'm getting a single value of intensity which is not real one. please see attachment.
Note: with last version of CC , I was not facing this issue.

*txt
i want to save txt file with reduced size e.g., only every second row in x-asix/ y-axis , z-axis or combination of all. xy plane/ yz plane.

For the LAS issue, I can't reproduce the issue. Are you sure that each time you are displaying the 'Intensity' scalar field? Is there warning messages in the console that might explain this issue maybe (not enough memory, etc.)?

And for the TXT file, you should use the 'Edit > Subsample' method (either in 'RANDOM' mode if you just want a fast decimation, but the 'SPACE' mode is generally more interesting). And you can export the result to any kind of format afterwards of course.

For the 1st point: I do use the last version myself. And I can't reproduce this issue. Can you share your file with me maybe (at least the small part)?

For the 2nd point: do you speak of rows of columns? I mean: do you want to save only X,Y or X,Z or Y,Z coordinates ? In this case this is not possible (you can use a smart text editor such as Notepad++ to do this easily however).