Jan & others, I am in the process of 'selling' GRASS GIS to a large number of GIS experts within my agency in the U.S. next week. I am preparing a presentation that focuses on our needs in hydrologic forecasting, which includes real-time data analysis and map production. At this point, my experience has been that anyone who has taken the time to give GRASS GIS a try, has been very impressed. In all of my discussions, I have not tried to say that GRASS can be a full replacement to, say, ArcGIS, but rather, to supplement ArcGIS. Part of my agencies' 'problem' is that our operational environment is Linux, which pretty much makes the use of ArcGIS a significant issue, not to mention the prohibitive cost of licensing to make GIS available to all potential users — up to 9 simultaneous users at each of approximately 140 separate locations around the U.S.
Regards, Tom ----- Original Message ----- From: Jan Hartmann <[EMAIL PROTECTED]> Date: Monday, July 9, 2007 7:02 am Subject: Re: [GRASS-user] Scientific Comparison between GRASS and Proprietary Remote Sensing/GIS Software > Carlos, is it possible to get a copy of your article? It is > important in > "selling" GRASS and Open Source GIS in my University environment. > That's > not easy, to say the least, so I can use any help I can get. > > Jan > > Carlos "Guâno" Grohmann wrote: > > This is it so far, but like I said, its _submitted_ I haven't > received> anything back from the reviewers yet.... > > > > Steiner, S.S., Grohmann, C.H., 2007. A comparison between ArcGIS and > > GRASS-GIS in elaboration and manipulation of morphometric > parameters.> Submitted to Computers & Geosciences. > > > > cheers > > > > Carlos > > > > > > On 7/9/07, Jan Hartmann <[EMAIL PROTECTED]> wrote: > >> Hi Firman, > >> > >> Could you send us a reference to your paper? > >> > >> Jan Hartmann > >> > >> Dr. J. Hartmann > >> Department of Geography > >> University of Amsterdam > >> > >> Carlos "Guâno" Grohmann wrote: > >> > Hello Firman, > >> > > >> > My colleague an I just submitted a paper about a comparison > between>> > GRASS and ArcGIS, using morphometric maps as a base. In > general terms, > >> > they both give similar results, except when there was an > interpolation>> > with clustered data (points clustered along > streamlines but with > >> > clusters far from each other). In this case, GRASS produced a > very>> > nice result, while ArcGIS made a really bad interpolation. > >> > > >> > Other the one hand, I guess some things are easier to do in some > >> > proprietary software, most of them have better map-producing > >> > capabilities than GRASS and GRASS lacks some more interactive > tools>> > (like interactive histogram stretching, color table > manipulation for > >> > vector maps etc). > >> > > >> > On the other hand, you can do things in GRASS you couldn't > even think > >> > about in proprietary GIS. Consider how powerful r.mapcalc is, > see the > >> > beauty of a NVIZ session (all my ArcGIS friends are impressed > with>> > NVIZ), or even how easy it is to adapt some piece of code > to suit your > >> > needs (I had to do that, I needed larger neighborhoods than > >> > r.neighbors default maximum size - 25 - so I just changed in > the code > >> > and recompiled). > >> > > >> > my two cents > >> > > >> > Carlos > >> > > >> > > >> > > >> > > >> > > >> > On 7/9/07, Firman Hadi <[EMAIL PROTECTED]> wrote: > >> >> Dear all, > >> >> > >> >> One week ago I had a discussion with someone who is expert in > remote>> >> sensing. > >> >> It was a really nice discussion though we have a different > perspective>> >> in using software. > >> >> I prefer to use GRASS, because it's an open source software > while he > >> >> prefer to use > >> >> proprietary software. He believed that GRASS can't do some > tasks that > >> >> proprietary softwares do. > >> >> He thought that GRASS is not mature enough to be used. He > asked me > >> some > >> >> prove that the results from GRASS is the same with > proprietary > >> software. > >> >> For me, it will be better if I bring actual comparison > between > >> GRASS and > >> >> proprietary software, though maybe it will take some time. > >> >> Is there any link or arguments to give an accurate > explanation for > >> such > >> >> kind of people? > >> >> Thanks. > >> >> > >> >> -- > >> >> Firman Hadi, > >> >> Center for Remote Sensing - ITB > >> >> Labtek IXC, 3rd Floor > >> >> Jl. Ganesha No. 10 > >> >> Bandung - INDONESIA > >> >> http://crs.itb.ac.id > >> >> Blog: http://jalmiburung.wordpress.com > >> >> > >> >> _______________________________________________ > >> >> grassuser mailing list > >> >> [email protected] > >> >> http://grass.itc.it/mailman/listinfo/grassuser > >> >> > >> > > >> > > >> > > > > > > _______________________________________________ > grassuser mailing list > [email protected] > http://grass.itc.it/mailman/listinfo/grassuser > _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
