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>D. Enhancing GRASS</A
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><FONT
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>If you plant to enhance any part of GRASS, read this first!</FONT
><P
> GRASS has been developed for over a decade as completely unrestricted
public domain source code and executables. Though there was initial
resistance to the existence of such robust software in the public
domain, many competitors learned to take advantage of GRASS. It has
reputedly been the intellectual stimulus for several enhancements to
other GISs. Several companies conducted business by installing and
customizing public domain GRASS for customers, and by providing other
value-added services such as data base development.
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> As USA/CERL no longer supports the public version of GRASS, users are
free to use what currently exists. They're also currently completely
on their own. At least where the public domain version is concerned.
</P
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> There is a
<A
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><I
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>commercial version of GRASS</I
></A
>,
adapted from the public domain
version by Logiciels et Applications Scientifiques (L.A.S) Inc. of
Montreal. In a recent check, LAS
sold its GRASSLAND for Sun, Linux and Windows NT. LAS is trying to
encourage the continuation of a robust public domain Linux, partly as
a source of new ideas and code for their own developments.
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