Issue the following command in your Conda Shell.
$ pdal translate ./exercises/translation/interesting.las \ ./exercises/translation/interesting.laz
The translate command converts files based on their extensions.
> pdal translate ./exercises/translation/interesting.las ^ ./exercises/translation/interesting.laz
LAS is a very fluffy binary format. Because of the way the data are stored, there is ample redundant information, and LASzip is an open source solution for compressing this information. Note that we are actually inflating the data here. Its laz from the workshop and we are converting it to las.
Verify that the laz data is compressed over the las:
$ ls -alh ./exercises/translation/interesting.la* ...
> dir ./exercises/translation/interesting.la* ...
-rw-r--r--@ 1 ogi staff 36K Aug 8 2019 ./exercises/translation/interesting.las -rwxr-xr-x@ 1 ogi staff 18K May 9 11:30 ./exercises/translation/interesting.laz
Typical LASzip compression is 5:1 to 8:1, depending on the type of LiDAR. It is a compression format specifically for the ASPRS LAS model, however, and will not be as efficient for other types of point cloud data.
You can open and view LAZ data in web browsers using http://plas.io but we will be using QGIS as examples.