Re: [Qgis-user] Projection
Helmut Kudrnovsky ha scritto: > be carefull about on-the-fly-projection with wgs84-data and austrian data > (MGI) because there are a few different towgs-informations in the > epsg-database. > > so if the towgs-information is not considered, there can be a north-east > shift of about 75m during the on-the-fly-projection. same for Italy (Gauss-Boaga). Actually this is a serious problem for professional use, and should be solved. All the best. pc -- Paolo Cavallini, see: * http://www.faunalia.it/pc * ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Projection
hi, be carefull about on-the-fly-projection with wgs84-data and austrian data (MGI) because there are a few different towgs-informations in the epsg-database. so if the towgs-information is not considered, there can be a north-east shift of about 75m during the on-the-fly-projection. i prepared some information about this issue under http://www.alectoria.at/content/view/17/1/ also i prepared there some prj-files including the towgs-information for Austria. best regards helli - helmut kudrnovsky www.alectoria.at -- Message: 3 Date: Wed, 7 Jan 2009 09:05:46 +0100 From: Otto Dassau Subject: Re: [Qgis-user] Projection To: qgis-user@lists.osgeo.org Message-ID: <20090107090546.12b1c...@nature> Content-Type: text/plain; charset=US-ASCII Hi Werner, I tried to find your raster file projection "UTM_WGS84_M15", but it doesn't seem to be available. What happens if you create your own CRS in QGIS. From your .prj file this should work: Setings -> Custom CRS Name: UTM_WGS84_M15 Parameters: +proj=tmerc +lat_0=0 +lon_0=15 +k=0.9996 +x_0=50 +y_0=-500 +ellps=WGS84 +units=m +datum=WGS84 +no_defs Then you load the raster, which is projected in "UTM_WGS84_M15", choose your custom projection in the Project Properties dialog, select "Enable OTF" and load the shape. The vector should now fit with the raster. regards, Otto On Mon, 05 Jan 2009 09:30:20 +0100 Werner Macho wrote: > Hi List! > > I gotta small problem here to proof that qgis is prime-time ready but .. > i have a raster and 3 vektor layers that i want to overlay > Rasterlayer is a geoTIF and as of .prj file: > PROJCS["UTM_WGS84_M15",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1 984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519 943295]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",50],PA RAMETER["False_Northing",-500],PARAMETER["Central_Meridian",15],PARAMETER[" Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0],UNIT["Meter",1]] > > therefore a UTM_WGS84_M15 which seems to be not in the list of > projections (or am i wrong?) > > the Vektorlayers are normal shape files and as of .prj file: > PROJCS["MGI_Austria_GK_M34",GEOGCS["GCS_MGI",DATUM["D_MGI",SPHEROID["Bessel_184 1",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925 199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",75.0], PARAMETER["False_Northing",-500.0],PARAMETER["Central_Meridian",16. 34],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT[ "Meter",1.0]] > > which i expect to be the MGI / Austria M34 projection and i can find it > in the KBS List > > > So can anybody give me a hint howto solve the rasterlayer projection > because otherwise i cant overlay vector OTF on the Raster (My > Information is that it can only work in that direction. > > Thanks a lot > regards > Werner > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user -- Message: 4 Date: Wed, 07 Jan 2009 11:34:35 +0100 From: Werner Macho Subject: Re: [Qgis-user] Projection To: Otto Dassau Cc: qgis-user@lists.osgeo.org Message-ID: <4964853b.8030...@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi Otto! (and list) Thanks for your help. It worked. At least in Windows - because i can remember that i tried nearly the same with Linux and it did not. But I have to check that anyway when I'm back home and on my Linux-PC. Expect a mail with a report on linux too ;) So it seems that there is really no existing projection for the (in austria) common UTM WGS84 M15. And nevertheless - all files i loaded into QGIS where fully equipped with a .prj file. So were there any discussion about reading .prj files i missed or can someone (hopefully a developer) provide me some information why QGIS is not reading .prj infos? At least a small button with "read prj file" to give the right .prj file for reading raster or vector files would even be more helpfull (and at least easier) than defining the projection by myself. I know it's the same as SPSS vs. R where it can lead to wrong interpreted results using a click-click interface compared to a "console-driven" text interface where you really have to know what you are doing but .. see the .prj files are provided so why looking for the projection if it is already there? Is there any ongoing discussion about trying to read the .prj files automatically or at least integrate them in the loading process somehow? thanks to all for your help and information regards werner > Hi Werner, > > I tried to find your raster file projection "UTM_WGS84_M15", but it doesn't > seem > to be available. What happens if you create your own CRS in QGIS. From your > .prj > file this should work: > > Setings -> Cu
Re: [Qgis-user] Projection
Werner Macho schrieb: [...] So were there any discussion about reading .prj files i missed or can someone (hopefully a developer) provide me some information why QGIS is not reading .prj infos? At least a small button with "read prj file" to give the right .prj file for reading raster or vector files would even be more helpfull (and at least easier) than defining the projection by myself. [...] Hello, I am no developer, but I once had the problem with a .prj - File on Linux that ist was there, but not readable: don't ask me why - IIRC it was because of some weird copying back and forth - and I was not the owner of the file... So I had no rights to read the file... A second possibility would be that the .prj File is corrupted, but then it should not work on windows either...or maybe different coding of line -endings (CR/LF... but I do not know if this could be an issue with a .prj-file...) Good Luck! Albin -- | Albin Blaschka, Mag.rer.nat. | Etrichstrasse 26, A-5020 Salzburg | * www.albinblaschka.info * www.thinkanimal.info * | - It's hard to live in the mountains, hard but not hopeless! ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Call For Papers, OGRS 2009
--- Call For Papers - OGRS 2009 First International Opensource Geospatial Research Symposium 2009 Dates & place: July 8th to 10th, 2009, Ecole Centrale de Nantes (France) Website: http://www.ogrs2009.org --- Dear colleagues, (our apologies for cross postings) From July 8th to 10th, 2009, during the tenth edition of Libre Software Meeting, the Research Institute on Urban Sciences and Techniques (IRSTV) in partnership with the University Of Applied Sciences Western Switzerland, Prefecture and Council of Region Pays de La Loire will organize a Research and Innovation Symposium about free and open source geospatial methods and technologies. Main goals of this symposium are : * to build a panel of new scientific works built on open source models or using open source tools * to build and discuss a scientific framework about open source technology usage (benefits and limitations) * to provide a platform to network and develop ideas for future collaborative works between the academic research world and the everyday operational world (companies, local authorities ...) The symposium will integrate scientific conferences (research papers), companies and authorities testimonies (showcases) and training sessions (labs). Thus, we invite to submit contributions which can be a full paper for the research session or an abstract for the labs session. Notice, the call for showcases will also be launched during January 2009. Contributions should address the following overall topics but are not limited to : * Cartography and advanced styling ; * Cultural heritage ; * Earth Observation ; * From Webmapping to WebGIS ; * Integrated risk and disaster management for society ; * GIS and SDI interoperability (data, knowledge, language, ...) ; * GIS and SDI for participatory learning and action ; * GIS concept and theory (semantics and ontology) ; * Landscape and ecology ; * Spatial Analysis and Integration ; * Spatial and Spatio-temporal data and analysis ; * Sustainable Development and Governance ; * Urban and Environmental Planning ; * Visual Languages and Querying ; * Web and desktop convergence in the geospatial field. Keynote speakers : * Câmara Gilberto, Brazil’s National Institute for Space Research * Neteler Markus, Fondazione Mach - Centro di Ecologia Alpina, Italia * Steiniger Stefan, University of Calgary, Alberta, Canada See committee members on OGRS2009 website : http://www.ogrs2009.org/doku.php?id=committee Research paper submission : * Full paper deadline : March, 1st 2009 * Submit a 500-1000 words abstract and a 12 pages full paper * Notification to authors: April 12th, 2009 * Final paper due: June, 1st, 2009 * See http://www.ogrs2009.org/doku.php?id=cfpmenu:research Lab abstract submission : * Submit a 500-1000 words abstract before : March, 22th 2009 * Notification to authors : April 12th, 2009 * Final documents, material and tutorial aure due for : June, 1st, 2009 * See http://www.ogrs2009.org/doku.php?id=cfpmenu:labs Contacts : * for research submission : resea...@ogrs2009.org * for lab submission : l...@ogrs2009.org * for other questions : i...@ogrs2009.org We would appreciate if you could kindly distribute this call to other interested parties of your acquaintance. Best regards and best wishes for the new year, OGRS2009 program committee begin:vcard fn:Olivier ERTZ n:ERTZ;Olivier org:HEIG-VD;Comem+ adr:Bureau T154a;;Centre St-Roch, Avenue des Sports 20;Yverdon-les-Bains ;VD;1401;Switzerland email;internet:olivier.e...@heig-vd.ch url:http://geosysin.iict.ch version:2.1 end:vcard ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] 2. FOSSGIS-Höck ins Solothurn
Please excuse cross-posting and german language, but this posting is addressed to the german speaking FOSSGIS community. -- Am 28. Januar 2009 wird der 2. FOSSGIS-Höck in Solothurn stattfinden. Wir wollen uns treffen und in lockerer Runde über FOSSGIS und den ganzen Rest diskutieren. Als ein zentrales Thema ist geplant, das neue QGIS-1.0.0 und besonders den neuen QGIS-Printcomposer vorzustellen sowie Ideen für die weitere Entwicklung zu sammeln. Andere Themen sind natürlich willkommen! Das alles ganz ungezwungen, offen für alle Interessierten und ohne Verpflichtung. Eine Anmeldung ist nicht erforderlich. Eine kurze Mitteilung zur Teilnahme an so...@bd.so.ch, wäre zur Abschätzung des Teilnehmerumfanges aber ganz schön. Der FOSSGIS Höck findet statt am 28. Januar 2009 ab 17:00 Uhr im "Zunfthaus zu Wirthen" in der Solothurner Altstadt. Gruss Horst Düster Dr. Horst Düster GIS-Koordinator, Stv. Amtschef Kanton Solothurn Bau- und Justizdepartement Amt für Geoinformation SO!GIS Koordination Rötistrasse 4 CH-4501 Solothurn Telefon ++41(0)32 627 25 32 Telefax ++41(0)32 627 22 14 mailto:horst.dues...@bd.so.ch http://www.agi.so.ch ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Projection
Hi Otto! (and list) Thanks for your help. It worked. At least in Windows - because i can remember that i tried nearly the same with Linux and it did not. But I have to check that anyway when I'm back home and on my Linux-PC. Expect a mail with a report on linux too ;) So it seems that there is really no existing projection for the (in austria) common UTM WGS84 M15. And nevertheless - all files i loaded into QGIS where fully equipped with a .prj file. So were there any discussion about reading .prj files i missed or can someone (hopefully a developer) provide me some information why QGIS is not reading .prj infos? At least a small button with "read prj file" to give the right .prj file for reading raster or vector files would even be more helpfull (and at least easier) than defining the projection by myself. I know it's the same as SPSS vs. R where it can lead to wrong interpreted results using a click-click interface compared to a "console-driven" text interface where you really have to know what you are doing but .. see the .prj files are provided so why looking for the projection if it is already there? Is there any ongoing discussion about trying to read the .prj files automatically or at least integrate them in the loading process somehow? thanks to all for your help and information regards werner Hi Werner, I tried to find your raster file projection "UTM_WGS84_M15", but it doesn't seem to be available. What happens if you create your own CRS in QGIS. From your .prj file this should work: Setings -> Custom CRS Name: UTM_WGS84_M15 Parameters: +proj=tmerc +lat_0=0 +lon_0=15 +k=0.9996 +x_0=50 +y_0=-500 +ellps=WGS84 +units=m +datum=WGS84 +no_defs Then you load the raster, which is projected in "UTM_WGS84_M15", choose your custom projection in the Project Properties dialog, select "Enable OTF" and load the shape. The vector should now fit with the raster. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Projection
Hi Werner, I tried to find your raster file projection "UTM_WGS84_M15", but it doesn't seem to be available. What happens if you create your own CRS in QGIS. From your .prj file this should work: Setings -> Custom CRS Name: UTM_WGS84_M15 Parameters: +proj=tmerc +lat_0=0 +lon_0=15 +k=0.9996 +x_0=50 +y_0=-500 +ellps=WGS84 +units=m +datum=WGS84 +no_defs Then you load the raster, which is projected in "UTM_WGS84_M15", choose your custom projection in the Project Properties dialog, select "Enable OTF" and load the shape. The vector should now fit with the raster. regards, Otto On Mon, 05 Jan 2009 09:30:20 +0100 Werner Macho wrote: > Hi List! > > I gotta small problem here to proof that qgis is prime-time ready but .. > i have a raster and 3 vektor layers that i want to overlay > Rasterlayer is a geoTIF and as of .prj file: > PROJCS["UTM_WGS84_M15",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1 984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519 943295]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",50],PA RAMETER["False_Northing",-500],PARAMETER["Central_Meridian",15],PARAMETER[" Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0],UNIT["Meter",1]] > > therefore a UTM_WGS84_M15 which seems to be not in the list of > projections (or am i wrong?) > > the Vektorlayers are normal shape files and as of .prj file: > PROJCS["MGI_Austria_GK_M34",GEOGCS["GCS_MGI",DATUM["D_MGI",SPHEROID["Bessel_184 1",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925 199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",75.0], PARAMETER["False_Northing",-500.0],PARAMETER["Central_Meridian",16. 34],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT[ "Meter",1.0]] > > which i expect to be the MGI / Austria M34 projection and i can find it > in the KBS List > > > So can anybody give me a hint howto solve the rasterlayer projection > because otherwise i cant overlay vector OTF on the Raster (My > Information is that it can only work in that direction. > > Thanks a lot > regards > Werner > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
