Unable to view LAS file

[Aaron Peech]

For some reason when I try to view an LAS file, all that the display window shows is the word "pan".

I know the las file is valid, I can see it in other viewers.

What am I doing wrong? 

This is using the latest version of the software.

[Martin Isenburg]

Hello,

In the GUI screenshot I can see that this in an Agisoft PhotoScan produced LAS file with points of type 2, hence points with RGB colors. I assume that all RGB colors are pure white so that you do not see anything on a white background. So either change the background color of lasview (via the right-click pop-up menu) or you change the coloring by pressing 'c' (or again via the right-click pop-up menu).

For processing the dense-matching point clouds into DTM and DSM rasters I suggest to following these workflows here:

http://rapidlasso.com/2014/06/13/dtm-from-dense-matching-points/

http://rapidlasso.com/2014/08/25/processing-large-dense-matching-point-clouds/

These examples are for photogrammetric points by Pix4D but we have since repeated this exercise also for points produced by the dense-matching algorithms of Agisoft and VisionMap with similar success. Try playing with the option '-bulge 1.0' in lasground to improve bare-earth classification.

Regards.

Martin @rapidlasso

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[Jadir Souza]

Good afternoon all , I have several strips having the points randomly distributed in 4 classes ( 1-4 ) , would like to move all points to the class 0 for batch processing , any suggestions ?

 

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    Atenciosamente

      Jadir Souza

[Max Nykjær Strunck]

Las2las –i <input> -o <output> -set_classification 0

 

Or

 

Las2las –i <input> -o <output> -change_classification_from_to [1/2/3/4] 0

 

 

Variables in <> or []

 

/Max

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