[GRASS-dev] [bug #5310] (grass) Coodinate conversion

Hamish hamish_nospam at yahoo.com
Mon Nov 20 17:39:01 EST 2006

Request Tracker wrote:
> this bug's URL: http://intevation.de/rt/webrt?serial_num=5310
> ---------------------------------------------------------------------
> Subject: Coodinate conversion
> Platform: Mac OSX
> grass binary for platform: Compiled from Sources
> Question? I want to have a plug-in for FileMakerPro that can do
> coordinate conversion between  different coordinate systems as f.ex.
> UTM and Decimaldegree, NGO and UTM. Is it possible to take code from
> the GRASS project to do such a thing? And second; if this is OK to do,
> is there anybody in the developer communiy tha could be interested in
> doing this? We may pay for it, and such a plug-in may have
> commersial interest. Best regards

I have no idea about writing plugins for FileMaker, but the solution
will almost certainly involve using libproj or the cs2cs program from
the PROJ.4 project.  http://proj.maptools.org

GRASS uses a modified version of PROJ.4 internally.

GRASS has a m.proj module, but this is just an integrated frontend to
cs2cs, but a full GRASS install is probably way more overhead than you
really need.

PROJ.4 uses a MIT style license, so you are free to use it without
restriction in a proprietry product, if you so wish. GRASS uses a GPL
license, so any (externally distributed) derived plugin based on GRASS
code would be required to be GPL as well (you can still sell that of
course, but you have to give your customer the source code if they
request it).

There's probably something like this already out there for PostGIS
[ie PostgreSQL db + GIS plugin].


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