Re: [Qgis-user] Quantum GIS and cadastre
Brent Wood-2 wrote: Note that QGIS has no internal support for a native datatype supporting arcs or any other feature type. Like I mentioned before, I don't need arcs at all. In fact, it seems that PostGIS is a PERFECT place to store all my data. Now I'm getting to know QGIS better and better, and it looks like a good piece of software. At the moment I see that it is really lacking a good and powerful editor. For instance, more different snaps would be good, like in AutoCAD. So far, the editor is only good for low-precision tracing of raster maps. Maybe there's a plugin that would extend QGIS' editing capabilities? Am I missing something here? Konstantin. -- View this message in context: http://www.nabble.com/Quantum-GIS-and-cadastre-tp14477338p14536310.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] Quantum GIS and cadastre
Hi Konstantin, There are more editing features in the editing development branch and it is planned to merge them into trunk for version 0.9.2. The new features include snap to vertex/to segment, different snapping distances for different layers, topological editing, splitting of lines/polygons, moving features. If you are curious to try theses features already now, you may check out the branch using: svn co https://svn.qgis.org/repos/qgis/branches/advanced_editing_branch cheers, Marco Am Samstag 29 Dezember 2007 11:11:07 schrieb Beowulf: Brent Wood-2 wrote: Note that QGIS has no internal support for a native datatype supporting arcs or any other feature type. Like I mentioned before, I don't need arcs at all. In fact, it seems that PostGIS is a PERFECT place to store all my data. Now I'm getting to know QGIS better and better, and it looks like a good piece of software. At the moment I see that it is really lacking a good and powerful editor. For instance, more different snaps would be good, like in AutoCAD. So far, the editor is only good for low-precision tracing of raster maps. Maybe there's a plugin that would extend QGIS' editing capabilities? Am I missing something here? Konstantin. -- Dr. Marco Hugentobler Institute of Cartography ETH Zurich Technical Advisor QGIS Project Steering Committee ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] Quantum GIS and cadastre
Konstantin No arcs? Lucky you! I found this: http://www.urigal.net/medias/files/gis-tools.tar.gz These are some python scripts for doing some surveying calculation like lat/lon - UTM or polar-coords - cartesian-coords. The guy's intention is to make a qgis plugin sometimes (as written in the readme). If you need to transform some local gps coords into a national reference frame or something similar you could probably make use of the qgis georefencer plugin (with some changes) which is able to make a helmert transformation. It would be nice if we have some cadastral surveying specific things in qgis. I keep you informed about the worldbank project. Since we are on christmas holidays you have to be patient. Stefan -Ursprüngliche Nachricht- Von: Beowulf [mailto:[EMAIL PROTECTED] Gesendet am: Freitag, 28. Dezember 2007 22:52 An: Qgis-user@lists.qgis.org Betreff: Re: [Qgis-user] Quantum GIS and cadastre I can tell you for sure that we don't use arcs in cadastre in this country. Only points, lines and polygons. In fact, I've seen several land plots which have circular fragments and they have been done as polygons. And if you have info about a specialized GIS, please tell me about it! Waiting for your soon reply! Ziegler Stefan wrote: Hi there will be definitely better informed people about all the possibilites of QGIS and more profound answers. But as as surveyor I can give you the following answers: 1. - 4. Yes. One big drawback for productive use in cadastral surveying is the lack of support of circular arcs which is essential in Switzerland. I don't know if it's necessary in Ukraine. The map composer is at the moment not state of the art but will be improved next year. I heard there's a project of the worldbank which has something to do with open source cadastral surveying GIS. If you want I can ask for more information. -- View this message in context: http://www.nabble.com/Quantum-GIS-and-cadastre-tp14477338p14481386.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] Quantum GIS and cadastre
Marco Hugentobler-3 wrote: There are more editing features in the editing development branch and it is planned to merge them into trunk for version 0.9.2. The new features include snap to vertex/to segment, different snapping distances for different layers, topological editing, splitting of lines/polygons, moving features. That's great news! When is 0.9.2 due? -- View this message in context: http://www.nabble.com/Quantum-GIS-and-cadastre-tp14477338p14538950.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] Quantum GIS and cadastre
Thanks a lot! I'm getting acquainted with PostGIS and I think it's exactly what I need to store all the data. And with QGIS support for PostGIS layer it all works out just great. Just a few plugins to parse field traverses and a form to edit semantic data and we have a great cadastral surveying GIS. Right now I am working on a parser to read out national cadastral exchange format and put it into PostGIS. Actually, most of ex-USSR is using old soviet coordinates CK-63. Since all our reference points are in these coordinates anyway, parsing a field traverse is no more than polar to cartesian conversion. Konstantin. Ziegler Stefan wrote: No arcs? Lucky you! I found this: http://www.urigal.net/medias/files/gis-tools.tar.gz These are some python scripts for doing some surveying calculation like lat/lon - UTM or polar-coords - cartesian-coords. The guy's intention is to make a qgis plugin sometimes (as written in the readme). If you need to transform some local gps coords into a national reference frame or something similar you could probably make use of the qgis georefencer plugin (with some changes) which is able to make a helmert transformation. It would be nice if we have some cadastral surveying specific things in qgis. I keep you informed about the worldbank project. Since we are on christmas holidays you have to be patient. -- View this message in context: http://www.nabble.com/Quantum-GIS-and-cadastre-tp14477338p14539024.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] Quantum GIS and cadastre
Sat 29 Dec 2007 17:29, Beowulf wrote: Actually, most of ex-USSR is using old soviet coordinates CK-63. or more widely known outside the .su domain as CS-63 .. comes in different zones (obviously ;) [0] datum should be the usual pulkovo 1942, hence the ellipsoid should be krassowsky 1940 IIRC was quite hassle-free with proj. [0] zone naming scheme is IIRC a cyrillic char which is followed by a int Since all our reference points are in these coordinates anyway, parsing a field traverse is no more than polar to cartesian conversion. sure. as along as e.g. no WGS-84 coordinates, e.g. from a GPS survey are also in use.. cheers, s. ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] Quantum GIS and cadastre
Whoa, you seem to know a lot about this. I'm new to this but AFAIK the conversion keys between different systems are a soviet military secret :) I am not sure what our zone is, but our coords are something like X=643400.88,Y=340232.37. BTW, does the rest of the world consider south-north axis as Y and west-east as X, or is it just us? sebastian sauer-2 wrote: or more widely known outside the .su domain as CS-63 .. comes in different zones (obviously ;) [0] datum should be the usual pulkovo 1942, hence the ellipsoid should be krassowsky 1940 IIRC was quite hassle-free with proj. [0] zone naming scheme is IIRC a cyrillic char which is followed by a int -- View this message in context: http://www.nabble.com/Quantum-GIS-and-cadastre-tp14477338p14542582.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
[Qgis-user] qgis 0.9.1 installer
hi all, Where can i find the new 0.9.1 installer. If I am not wrong then it was to be released in the first half of this month. One more thing - I am having trouble using the pgs driver , the present version .dbf driver doesn't work in grass plugins. can someone help me out with this problem . It always complains WARNING : ATTRIBUTES MISSING. Is there any tutorial / resource which guides you about using postges db with the grass module for importing vector layers. thanks in advance nishith - Never miss a thing. Make Yahoo your homepage.___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis 0.9.1 installer
On Dec 29, 2007, at 5:58 PM, nishith datta wrote: Where can i find the new 0.9.1 installer. If I am not wrong then it was to be released in the first half of this month. The official announcement has not been made, but the packages that are available so far can be found at the usual place: http://download.qgis.org . -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Gary Sherman Chair, QGIS Project Steering Committee -Micro Resources: http://mrcc.com *Geospatial Hosting *Web Site Hosting -Desktop GIS Book: *http://desktopgisbook.com We work virtually everywhere -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
