CGM Compression Use Case

[Don Larson <dlarson@cgmlarson.com>]

All,

Use case for "Z Compression of CGM Files":

In an oil field application, very large CGM are transmitted via Internet 
several times a day from drilling locations to centrally located engineers 
for analysis.  Each CGM file ranges in size from 2 to 10 Mb. In a typical
work week, an engineer may receive and archive as many as 100 files.
This equates to  600 Mb of CGM data a week which over the life of just one 
drilling project an engineer may accumulate several giga-bytes of CGM
data on his laptop. 

Analysis of a typical set of CGM files determined that reduction in file size
ranged form 80 to as much as 94% reduction in file size with Z compression.

It would save a significant amount of bandwidth and storage space if the 
CGM file could be Z compressed before transmission and then decompressed
on the fly by the viewer as they being interpreted for viewing.

Regards,
Don Larson
Larson CGM Software
(713)977-4177 x102
www.cgmlarson.com