[OSRS-PROJ] commercial apps

[Paul Selormey]

Hello Frank,
Can you or anyone give us more comparison between GeoTrans and Proj4?

I alsofound GeoTrans easier, but with no support like for Proj4, I decided
on Proj4.

Best regards,
Paul.

----- Original Message -----
From: "Frank Warmerdam" <warmerdam at pobox.com>
To: <osrs-proj at remotesensing.org>
Sent: Wednesday, September 19, 2001 9:54 AM
Subject: Re: [OSRS-PROJ] commercial apps


> Marc Pelletier wrote:
> > Hello,
> >
> > Can anyone tell me about commercial apps using Proj4 for their
> > projection engine? I'm trying to make a case against roll-our-own for my
> > boss.
> >
>
> Marc,
>
> Well, whether it makes sense to roll your own or not depends on alot of
> factors.  However, I would stress that few geospatial software companies
> roll their complete own projections library.  If you want to support a
variety
> of projections it can be difficult to do well.
>
> I don't know about complete sorries about these companies, but I do know
that
> Global Geomatics, Avenza, Softmap, and Cubewerx all use portions of PROJ.4
> in their software.  I also know that some of the "mainline" GIS and
> Geospatial software companies used adapted forms of other public
libraries,
> such as GCTP at PCI.  A number of vendors also use commercial projections
> libraries from Blue Marble and Mentor Software.
>
> If you are looking for commercial support, you can talk to Mentor or Blue
> Marble.  If you want customized support for PROJ.4 you could talk to me.
> If you want a really clean code base you can munge as desired, you might
> want to look at the geotrans code adapted in OSSIM or GeoTrans on it's
> own (it's a little easier to understand than PROJ.4).
>
> I would also like to stress that one way or the other, the world doesn't
> need another way of describing projections.  If you do roll your own, at
> least consider tieing into something like OpenGIS Well Known Text format
> for describing your coordinate systems.
>
> Best regards,
> --
> ---------------------------------------+----------------------------------
----
> I set the clouds in motion - turn up   | Frank Warmerdam,
warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Programmer for Rent
>
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