lasinfo64 output

[Möst, Karin (LDBV)]

Hi Jochen,

did you change anything in the output of lasinfo64?

It seems, scan_angle_rank changed to scan_angle.

This is sometimes problematic for parsing lasinfo.txt

Regards,
Karin

[Jochen Rapidlasso]

Hi Karin,

yes, we continuous improve LAStools and changed lasinfo64 several times - since 2014 we had about 40 updates in the output.

As some users use the output to parse metadata out of lasinfo64 we know changes are dangerous in this relation.

Therefore we try to document all changes in the CHANGES.txt so users can see if changes affect their work.

In 05/2025 we changed the name from scan_angle_rank to scan_angle because the output of this field changed in general - this was the hard way to tell the users that the field content changed.

New lasinfo64 output for scan angle (for a LAS 1.4 file in point format 6):

...

  scan_angle    -31.002     31.002
...

  extended_scan_angle    -31.002     31.002

...

The lasinfo and old lasinfo64 output was not the same:

...

  scan_angle_rank   -31         31

...

  extended_scan_angle         -5167   5167

...

Best way to parse lasinfo64 output is to use the JSON format (argument "-json"), which is much less error-prone.

To avoid confusion we will publish changes to lasinfo64 more clearly and also in the google group in future to make sure all users are able to change their workflows if necessary.

Sorry for the trouble about this,

Best regards,

Jochen @rapidlasso 

[Möst, Karin (LDBV)]

Hi Jochen,

 

thank you for the info.

 

Regards

Karin

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