<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hi Jarek,<DIV>After taking my GIS and Geomatics course component early in my thesis, I was faced with the choice between walking 200 m to the geography department's ESRI/windows lab to complete my thesis analyses, or (what I believed to be) the steep learning curve of installing and running GRASS in our own department's small lab (all Mac's, no money for ESRI licenses + all the other goodies they had in geography anyway). I tried to keep going over to geography, but soon found that the complicated image analysis and database workflows I was using in my thesis were cumbersome and counter-intuitive in ArcGIS. At the same time, I was keeping tabs on the GRASS User lists and beginning some basic tasks - and once I had my workflow designed, it was much easier to implement in the GRASS-postgreSQL-R environment, where I kept an edited and commented command history I could just run again for each set of images (also my first experience with rudimentary scripting - another reason for the migration). When I found I needed to fix some problems with my analyses, it was only a small task to run the history again for the whole batch - weeks of work in arcGIS! While the GUI design efforts were appreciated as I learned GRASS, I also found they inhibited my productivity aside from certain layer display and querying tasks. When I was stumped I found the support and wealth of knowledge in the user list and archives always answered my questions. And finally, as one of my committee (from Geography!) noted, 'No more black box'. These experiences cemented my migration, and I haven't looked back.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Good luck with the course...</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Graham Watt-Gremm</DIV><DIV>Digital Support Specialist</DIV><DIV>Rocky Mountain Repeat Photography Project</DIV><DIV>School of Environmental Studies</DIV><DIV>University of Victoria</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR><DIV><DIV>On 3-Sep-06, at 11:11 AM, Jarek Jasiewicz wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Reading disscusion grass nwesgrup I fonud that some people have migrating form ArcInfo to Grass</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">I'm interesting of reasons of such migration - from expensive (very expensive) commercial program to open source one</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">I'm not trying to start another disscusion about nothing. I'm (probably like most of as) high school teatcher/scientist and I will try this year to introduce Grass as a part of GIS<SPAN class="Apple-converted-space"> </SPAN>course in our University.</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">I'm not interested in comparing that programs - I did it, and I know differences and limitations of both - I'm interested only of reaseons of migrations</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">with best regards</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Jarek Jasiewicz</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Adam Mickiewicz University</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Poznań, Poland</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">grassuser mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:grassuser@grass.itc.it">grassuser@grass.itc.it</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="http://grass.itc.it/mailman/listinfo/grassuser">http://grass.itc.it/mailman/listinfo/grassuser</A></DIV> </BLOCKQUOTE></DIV><BR></DIV><BR><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN></SPAN> </DIV><BR></BODY></HTML>