EMACS modes for GIS usage (AML, ARC-INFO, etc.)

[David Mandel]

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I use various GIS software a lot, including Arc-Info, Erdas, and GRASS.
I also use GNU-emacs on my workstations.  So naturally, I use emacs
to edit data, write GIS software, etc.  In fact, I generally run 
Arc-Info via the shell or telnet mode in emacs.  More and more I'm 
writing emacs-lisp code to help me with some of these activities; and 
someday I hope to turn these into complete modes.

Given this, I would like to know what other people have done along 
this line.

Has anyone built a geographic calculator into emacs?

Has anyone tryed building a emacs front-end to GRASS or Arc-Info or LTPlus?

I once heard something about an emacs-aml mode.  
Where can I get information about this?

As you see, I'm looking for very general background information
at this point.  Any information you can give me about emacs/GIS
links would be appreciated.

                                                Thank you,
                                                D. Mandel

P.S.  Please send a copy of any response directly to me as I
have limited access to the newsgroups.

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