# Compression¶

## Exercise¶

This exercise uses PDAL to compress ASPRS LAS data into LASzip.

1. Issue the following command in your Anaconda Shell:

pdal translate ^
c:/Users/hobu/pdal/exercises/translation/interesting.las ^
c:/Users/hobu/pdal/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

2. Verify that the data are in fact compressed:

dir c:\Users\hobu\PDAL\exercises\translation\interesting.laz

dir c:\Users\hobu\PDAL\exercises\translation\interesting.las