[Qgis-user] QGIS contributor meeting in Bratislava
Hi everyone! If you are planning to attend the QGIS contributor meeting in Bratislava (11-13 September), please make sure you have added your name in the wiki: https://github.com/qgis/QGIS/wiki/27th%E2%80%90Contributor%E2%80%90Meeting%E2%80%90in%E2%80%90Bratislava This will help us a lot to plan for the capacity of the space... and those who sign up late risk that they won't get a fancy T-shirt ;-) We are looking forward to see many of you in Bratislava! Regards Martin ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS User Conference 2024: Detailed schedule
Hi all Good news everyone - the detailed schedule is now available on the conference website: https://uc2024.qgis.sk/schedule/details/ We are expecting 50 talks and 15 workshops over the two days. For those looking for a small escape from the conference buzz, there will be a large "focus" / "quiet" room at the library right next to the conference rooms. And after the first day of the conference, there will be a social event with food and drinks. A quick reminder: early bird tickets are available only until the end of June - only two weeks left! Those who plan to join the contributor meeting, please do not forget to add your name to the list of participants on the wiki: https://github.com/qgis/QGIS/wiki/27th%E2%80%90Contributor%E2%80%90Meeting%E2%80%90in%E2%80%90Bratislava See you in Bratislava! Regards Martin (on behalf of the local organizing committee) ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS User Conference 2024 - registration open
Hi all Just a quick note that tickets for this year's User Conference are now available! You can get your ticket on the web site of the conference: https://uc2024.qgis.sk/ There are two newly added pages on the site: - tentative schedule - https://uc2024.qgis.sk/schedule/ - practical info when attending - https://uc2024.qgis.sk/attending/ We are now in the process of going through the submitted talks and workshops - there are over 80 proposals! We would like to publish the program sometime in May. Most likely we will be running talks in three rooms in parallel, plus workshops in three more rooms. See you in Bratislava! Regards Martin (on behalf of the local organizing committee) ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS User Conference - call for papers ends soon
Hi everyone! Just a friendly reminder that call for papers (talks/workshops) for this year's QGIS User Conference will be closing 31st of March, so if you plan to submit a proposal, there are only few days left! Conference website: https://uc2024.qgis.sk/ Submission of proposals: https://talks.osgeo.org/qgis-uc2024/cfp Looking forward to seeing many of you in Bratislava! Regards Martin ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS User Conference: Call for papers + Call for sponsors
Hi everyone! This is a quick note that call for papers for QGIS User Conference 2024 is now open - deadline for submissions is 31 March 2024. See more details on the web site: https://uc2024.qgis.sk/call-for-papers/ We have also started call for sponsors, with sponsorship opportunities at various levels. More details here: https://uc2024.qgis.sk/sponsors/ Please help us spread the word and share the links in your networks - thanks! Regards Martin ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS User Conference 2024 & Contributor Meeting
Join us for the biggest QGIS event of the year! QGIS User Conference 2024 site is up: https://uc2024.qgis.sk/ We are happy to announce that the QGIS User Conference will take place 9-10 September 2024 in Bratislava, Slovakia! The conference will take place at the Faculty of Civil Engineering at Slovak Technical University. The contributor meeting will follow on 11-13 September at the same venue. The event is being organized by the Slovak QGIS user group in collaboration with the Faculty of Civil Engineering STU, with support from the QGIS core project. About the User Conference: The QGIS User Conference is the premier event for QGIS users and developers. It is a great opportunity to learn about the latest features and developments in QGIS, network with other users, and share your knowledge. Registration & Call for Papers will be announced in the coming weeks. About the Contributor Meeting: QGIS Contributors Meetings are volunteer-driven events where contributors to the QGIS project from around the world get together in a common space. During these events, contributors to the QGIS project take the opportunity to plan their work, hold face-to-face discussions and present new improvements to the QGIS project that they have been working on. Everybody attending the event donates their time to the project for the days of the event. Registration for the Contributor Meeting is available on GitHub: https://github.com/qgis/QGIS/wiki/27th%E2%80%90Contributor%E2%80%90Meeting%E2%80%90in%E2%80%90Bratislava Stay tuned for more news and we hope to see you there! If you have any questions, please feel free to reach out to uc2...@qgis.sk Regards Slovak QGIS User Group ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Lidar download
Hi On Fri, Mar 5, 2021 at 3:13 AM Nicolas Cadieux wrote: > LiDAR is new in QGIS and i’am not sure what files formats are supported > yet. I had trouble with the current version. It did show support for a > json file format but I expect the las/laz format support will pop up once > the bugs are worked out. In the mean while, I would use CloudCompare > (OpenSource) to read the cloud and create the DEM. Then, you could import > the DEM into QGIS to extract the contour lines. > QGIS 3.18 does support LAS/LAZ format to load point cloud datasets. The problem is that some installers for some platforms (most notably the Windows installer) do not include the PDAL library needed to read LAS/LAZ files. There is now an experimental alternative installer which includes also PDAL library and thus it can read LAS/LAZ files too: https://qgis.org/downloads/QGIS-OSGeo4W-3.18.0-1.msi Please note that 3.18.0 release has been pulled back few days ago because of several major bugs, so please consider this as a testing release where some things may not work. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS 3.18.0 and QGIS 3.14.4 (LTR) packages released and OSGeo4W reboot
Hi Jürgen Great - thanks a lot for all your efforts! As for PDAL / point clouds, during the development the initial requirement for PDAL 2.2 has been later dropped to PDAL >= 1.7: https://github.com/hobu/untwine/commit/5d83f32f81aa461a9b12f1084197aa7af5f8ec19 The current windows standalone QGIS installer is currently unable to open LAS/LAZ files, which is confusing to users... Would it be possible to compile QGIS with PDAL 1.8 (which is already included in osge4w packages) ? There should be hopefully no code changes necessary. Howard says PDAL 1.8 is quite old and has some bugs, but that's still better than no LAS/LAZ support at all :-) Regards Martin On Tue, Feb 23, 2021 at 5:37 PM Jürgen E. Fischer wrote: > Hi there, > > I'm happy to announce that the QGIS packages of 3.16.4 (LTR) 'Hannover' > and the > our latest release 3.18.0 'Zürich' are ready on > https://qgis.org/de/site/forusers/download.html. This includes Linux, > Mac and > Windows packages. With the availability of a new regular release the > current > long-term release 3.16 replaces the previous long-term release 3.10 in the > long > term package repositories. > > The Windows standalone installer are as usual made from the OSGeo4W > packages. > > In OSGeo4W there has lately been a big effort to reboot it, meaning that > it has > been completely rebuilt using newer source versions of mostly every > package > using a newer compiler. As this happened shortly before the QGIS release > the > new packages are still in a separate repository for testing. > > You can install them using the osgeo4w installer on > http://download.osgeo.org/osgeo4w/testing/osgeo4w-setup.exe (note the > testing - > the old installer will also work, if you point it to the new site, but it > will > default to the old). > > Within the reboot a lot of old packages were dropped (including > dependencies to > old microsoft runtimes), new packages were introduced and also package > names > were revised. > > Long story short: you cannot upgrade from old installs and have to remove > and > reinstall or use a separate directory. As the new OSGeo4W only supports > 64bit > the default root directory was changed to C:\OSGeo4W, which might help with > that if you were on 64bit earlier. > > Also note that it now only has one version of Python - namely 3.9, which > doesn't support Windows 7 anymore. Other updates include Qt 5.15, GDAL > 3.2, > PROJ 7.2 and SAGA 7.8. > > It also has PDAL 2.2 which is required for native support of point clouds > in > QGIS - something that you find lacking in the "old" OSGeo4W repository and > in > turn in the current standalones. > > The new installer also doesn't require administrator privileges anymore. > Unless you run it elevated (ie. as Administrator) the option to create > shortcuts for all users will be unavailable. > > The testing repository will eventually replace the old repository and also > be > used to make standalone installers. As it has grown to exceed the 2GB > limit > of NSIS the standalone installers will then be switched to MSI. > > The package recipes currently reside at https://github.com/jef-n/OSGeo4W. > > Please test and report packaging issues to the OSGeo4W TRAC at > https://trac.osgeo.org/osgeo4w. > > > > Jürgen > > -- > Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-31 > Dipl.-Inf. (FH) Rheinstraße 13 Fax. +49-4931-918175-50 > Software Engineer D-26506 Norden > https://www.norbit.de > QGIS release manager (PSC) GermanyIRC: jef on FreeNode > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Dropping the extra label placement algorithms?
Hi Nyall On Fri, Jul 26, 2019 at 4:40 AM Nyall Dawson wrote: > > Hey lists > > This was first discussed back in 2016 (see > http://osgeo-org.1560.x6.nabble.com/Removal-of-labeling-search-methods-td5262743.html), > but would anyone object if the different labeling solution algorithms > eg "chain" / "pop music" / "falp" / etc were dropped, and we just > leave the existing default (chain)? As stated in the earlier email, I would not mind if we remove those. Are you thinking about removing the option in GUI or to get rid of the code in PAL for other methods too? > I don't think ANYONE knows what these mean, and it's a heck of a lot > of code (which needs fixes) to cart around for no compelling reason > that I can see. > > I have no particular preference to any of the methods, so would > happily accept a different default if anyone out there can point to > which method is best! > > Googling pop music / tabu / chain only gives a handful of results > relating to QGIS labeling engine. And googling for "falp" sounds like > something that would get you flagged on your company's firewall. To shed some light on the methods for those interested... a good starting point is PAL docs [1] with links to papers, unfortunately most links there are broken, but this paper is a good start: Laurent et al: From Point Feature Label Placement to Map Labelling (2009) The paper is available here [2] and gives an overview of the whole process of labeling with PAL. Generally the idea is to turn labeling into a general combinatoric problem and then apply some heuristic. The paper also covers the various optimization techniques. FALP seems to be the most basic initial solution. "Tabu" seems to be a meta-heuristic method from 1980's [3], "chain" stands for "ejection chains" concept somehow related to Tabu search. And finally Popmusic is a search method co-authored from one of the authors of PAL. I remember there was a paper with quite extensive testing of the methods, but can't find it anymore. From what I remember, one would higher amount of labeled features with a slower method (e.g. Popmusic) or fewer labels with a faster method. If we decide to stick with a single method, it may be interesting to get the opinion of original PAL authors on what method to choose... I don't know enough about those methods to decide. Cheers Martin [1] http://pal.heig-vd.ch/index.php?page=support [2] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.472.4491&rep=rep1&type=pdf [3] https://en.wikipedia.org/wiki/Tabu_search ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] [QGIS-Developer] Sunrise, Sunset, Lunar Calculations
Hi Calvin On Thu, Jun 27, 2019 at 9:15 PM C Hamilton wrote: > > How much interested would there be for a plugin to display sunrise and sunset > information for a particular location on the earth's surface. Is anyone > already working on this? There doesn't seem to be a capability for this, but > perhaps I have missed it. Are there other astronomical calculations that > would be worth while in QGIS? (Moon asimuth/position, phase) Just adding another +1 vote to have something like this in QGIS :-) At some point I would like to look into rendering of shadows of buildings in QGIS 3D - and for this it would be important to have the ability to calculate sun position. Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Slovak QGIS users
Hi everyone I am trying to reach out to QGIS users in Slovakia. We would like to start a local QGIS Slovak user group and so it would be great to connect with as many people as possible. This year at the OSS Conf (http://ossconf.soit.sk/) in Zilina there will be a full day dedicated to open source GIS on 4th of July with a block focused on QGIS, so please consider this email do be also an invitation to the event :-) Of course Czech QGIS users are also very welcome! We may even discuss creation of a joint CZ-SK users group and make use of the geographic+language proximity... If you are interested please feel free to also contact me directly. Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] 3D map scripting
Hi Darrel On Fri, May 17, 2019 at 4:03 PM Darrel Maddy wrote: > I am happy with the views I am creating manually now and I have been looking > for a way to automate this process (as I do not want to prepare 7000 frames > individually). Can this be done in scripting? Or is there a macro type > facility that at least would ease the pain ? > > I am happy to write the code (in Python) if there is a way to access the 3d > map window. It also appears that the settings cannot be saved i.e. any > changes to the default view – again anyway to keep this persistent would be > welcome. Maybe I am just missing something obvious? Currently there is only limited API support for 3D map views. For example, you can set 3D renderers for your vector layers, but some functionality is not available in Python (like access to the 3D map view or creation of "offline" 3D renderer that would allow you to trigger 3D rendering upon request). Can you explain in a bit more detail what are the bits you would like to modify for every new frame? How are the 7000 data overlays represented? I may have some time to make the necessary API functionality available in QGIS 3.8 which will be out soon. Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Problem with 3D View: lots of empty (white) holes
Hi Agustin On Wed, Oct 3, 2018 at 7:02 PM Agustin Lobo wrote: > I have a DEM for an Island with horseshoe shape, sea as no data. > When I represent it in 3D, I get all the "no data" propagated to a > much larger extension. > See snapshots: > https://www.dropbox.com/s/i6vm728481qnx2a/Captura1.JPG?dl=0 > https://www.dropbox.com/s/t35v47pg0v5b774/Captura2.JPG?dl=0 This is a known limitation. If you specify higher "Tile resolution", the effect should be less pronounced (e.g. try 256px instead of the default 16px). As you zoom in, the problem should also increasingly disappear as more detailed terrain tiles get loaded. To help you understand what is going on - the terrain entity is composed of tiles, each tile samples height from your DEM, by default 16x16 samples per tile. If some of the samples contain "no data" values, we cannot create vertices in the terrain for them and so we cannot build faces around those values. Probably the best solution to this is to fill the "no data" values in your DEM for better looking 3D view. Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Crayfish Plugin
Hi Matt On Fri, Aug 10, 2018 at 2:00 PM Matt Boyd wrote: > > Hi QGISers, > I've started doing work (well, study and also not so much doing as learning) > with geological models in with time and other parameter series mesh grids. > I'm trying to get some data in xdmf format into Crayfish. Is there anyone who > is working with this sort of data on this list? I'm havign trouble getting my > data loaded. various errors and what could be unsupported formats. If you have problems opening some data, feel free to open a new issue in the Crayfish bug tracker: https://github.com/lutraconsulting/qgis-crayfish-plugin Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] 3D Map Views and XYZM values
Hi Tyler On Wed, Jun 20, 2018 at 4:01 PM, Tyler Veinot wrote: > Hi All; > I have been experimenting with the 3D viewer in QGIS3 and was wondering how > the ZM values are interpreted or if they are at all. When I tested with the > points and polygons it looked like the Z was interpreted as a extrusion or > height; but when I measure all objects seem to be the same size regardless > of M value can someone verify if a M value is interpreted at all in the 3D > view? Z values are interpreted as elevation - this should work for points, linestrings and polygons. M values are not interpreted. > Another question, for polygons I can use fields to define things like, > extrusion, elevation, scale, etc... but I cannot for points or lines in 3D; > I was sure I could do this in the 3.0.0 build (currently at 3.0.3). Is > adding this capability something that is being looked into for future > versions? Right, this is not implemented yet. Hopefully it will be added sometime soon, but there is no roadmap for that... Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis3 3D view vertical scale inconsistency
Hi Adam On Wed, May 2, 2018 at 9:29 PM, Adam Dershowitz wrote: > I have been working with the new 3D view in qgis3. I have a project where I > have terrain (elevation data) and then some points above the terrain in > space. If I enable 3D rendered for the vector points, and set altitude > clamping to Absolute, and then open a new 3D view it appears to be at a > reasonable scale and looks good. However, it can be useful to change the > vertical scale to improve the view. If I go to 3D Configuration and change > the Terrain->Vertical scale to 2.0 then the terrain grows, as expected, but > the vector points stay at the same elevation, and some end up below the > surface. > Is there a way to change the whole vertical scale for the 3D view? It seems > like leaving the vector points at one vertical scale and the terrain at a > different one, is misleading and I would consider it a bug. The only > temporary work around that has occurred to me so far is to calculate a whole > new vector layer, that is calculated from the original one but scaled > differently, and then display that one instead. But that seems like it is > not the easiest solution, and means that one would have to recalculate new > vector layers for every change in scale. So the point layer has Z coordinates with elevation? What method of altitude clamping have you chosen for the point layer's 3d renderer? It seems like you are using absolute clamping... the other two methods respect the vertical scale. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] 3D Surfaces in QGIS3
Hi Adam On Fri, Mar 9, 2018 at 6:17 PM, Adam Dershowitz wrote: > One of the features that I was most excited about for QGIS3 was 3D views. > One of my projects has 3D polygons above the ground elevation surface, and I > was hoping to display them in QGIS. > I figured out that I need to change the layer properties->3D View and Enable > 3D render. Now, it does display the polygon in space. But, the polygon is > always fully opaque. If I change the layer opacity, it does change the > opacity of the projection of the polygon on the ground, but not of the actual > polygon in space. > Is there anyway to change the opacity of the polygon in 3D space, so I can > see the ground through it? Transparency is currently not supported in 3D view - all objects are fully opaque. In 3D, rendering of semi-transparent objects is not trivial and requires some advanced tricks. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Error 3D View QGIS 3.0 - *Crash ID*: 40e66737578440d0e4a40fa8545b665a86f88731
Hi On Wed, Mar 7, 2018 at 9:43 AM, Andreas Neumann wrote: > Hi, > > Yes - I also heard that certain graphic cards have issues with QGIS 3D, > unfortunately. For these issues, the only solution is to switch to a > different machine with a different graphics card. Lets hope that future qt > versions will fix this issue. > Currently we have two bug reports (and a few duplicates) referring to this problem: https://issues.qgis.org/issues/17416 https://issues.qgis.org/issues/17315 (they could be probably merged into one report - the backtraces are nearly identical. >From what I can tell, this has been an issue just on Windows with some Intel graphics cards. It could be related to a particular version of the drivers as well. My laptop also has Intel graphics card, but I have not had any crashes. Maybe if affected users posted their graphics card model + driver version, we could find get closer to identifying the source of the problem. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] [Qgis-developer] QGIS X3D processing
Hi Paolo On Mon, Mar 27, 2017 at 2:15 PM, Paolo Cavallini wrote: >> >> What would be a good place to learn more about QGIS3 plans to use native >> Qt5 3d facilities ? > > Hi Andreas, > I do not know much. You can probably have a look to the work of Minoru > Akagi, who started some early development on this. > However, I think some core devs may be interested in joining the discussion. I have been playing with Qt 3D module recently and submitted a grant proposal for native 3D support in QGIS. Here is my repo with a simple 3D rendering of a DEM with aerial imagery: https://github.com/wonder-sk/qgis3d Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Autotrace working?
Hi Andreas On Wed, Jun 22, 2016 at 12:42 PM, Neumann, Andreas wrote: > Hi all, > > Thank you all for your ideas. > > Meanwhile I found the problem: it doesn't seem to work with data containing > circular arcs (CurvePolygon, CompoundCurve, etc.). If I load data without > circular arcs it works fine. Oh right - the circular arcs are not currently considered in tracing. > Saber/Martin: could you estimate how much effort it would be to also support > these geometry types? A simple solution should be fairly easy, and I can do that within the bugfixing work, but it would involve segmentation of circular arcs (for tracing we need to compute intersections of all geometries with GEOS). A more elaborate solution for the future could be to either use some heuristics to reconstruct the arcs or do not include arcs in intersection computation or handle arcs completely separately. Would it be sufficient solution for you if the segmentation of arcs was in place? > I could provide sample data with circular arcs (Geopackage, GML or Postgis > dump). That would be useful - thanks! Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Crayfish plugin OSError: libproj.so.0
Hi Alexandre On Tue, May 10, 2016 at 6:02 PM, Alexandre Neto wrote: > I'm using it straight from the plugins repository. > > Creating the link worked but now it misses another library libhdf5.so.7 > > There is something fishy in my installation. Not sure if it's a crayfish > problem, neither a ubuntu 15.10 one. maybe I have some mixed dependencies or > something. > > It works fine in Ubuntu 14.04 with QGIS 2.14 The precompiled Crayfish binaries are done on Ubuntu 14.04 and with the package changes in Ubuntu >= 15.10 the binaries do not work there. I have filed a bug report to fix the problem: https://github.com/lutraconsulting/qgis-crayfish-plugin/issues/187 In the meanwhile you should be able to compile the support library yourself, see the instructions: https://github.com/lutraconsulting/qgis-crayfish-plugin/blob/master/README.md Cheers Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] [Qgis-developer] [Plugin presentation] LayerBender
Hi Olivier On Tue, May 27, 2014 at 2:18 AM, Olivier Dalang wrote: > Dear lists, > > I'm happy to present my new plugin called "LayerBender". > > It's purpose is to allow to align/distort vector layers to match a source, > very much like georefencer does for raster. It seems ArcGIS and OpenJump > call this feature "Rubber sheeting". > > Demonstration video : https://vimeo.com/96142479 Really impressive! ... and I like Futurama's Bender as the plugin's mascot :-) Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-developer] Re: [Qgis-user] PostGIS Manager compatibility issue with PostGIS 2.0
On Mon, May 7, 2012 at 3:25 PM, G. Allegri wrote: > DB Manager works fine. > The plugins overlap, but they are contributed plugins, so it's up to the > user choosing wether to use DB Manager or the others. > My note was directed to the PG Manager mantainer... As a maintainer of PostGIS Manager I would suggest you to move to DB Manager since I do not intend to maintain PG Manager and remove it completely in future. DB Manager is a viable replacement. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: [Qgis-developer] SEXTANTE for QGIS has been released
On Mon, Apr 2, 2012 at 1:34 PM, Alexander Bruy wrote: > > minQtVersion = '4.6.0' > > def initGui(self): > if qVersion() < minQtVersion: > QMessageBox.warning( self.iface.mainWindow(), "Error", "Your message") > self.loadingCanceled = True > return None Hi Alex there may be a problem with above code. Imagine that PyQt4 is built with e.g. Qt 4.2 - that means that it will provide only methods available in Qt 4.2 and below. If the user updates Qt version to 4.8, the new methods and classes will not be available in PyQt4, however qVersion() will return '4.8.0'. There is also PYQT_VERSION_STR variable in PyQt4.QtCore that returns the version of Qt used to build PyQt. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: [Qgis-developer] SEXTANTE for QGIS has been released
On Mon, Apr 2, 2012 at 9:59 AM, Victor Olaya wrote:
> Thanks Radim
>
> That means that some distributions of QGIS might have a QT version
> lower that 4.7? The one I am using works fine, so i gues is > 4.7. Is
> there any way of checking it on the fly, so I can execute that line
> only if the version is recent enough?
Hi Victor
in Python you can use 'hasattr' builtin function:
edit = QLineEdit()
if hasattr(edit, 'setPlaceholderText'): edit.setPlaceholderText('foo')
Cheers
Martin
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Re: [Qgis-user] QGIS and Computer Security (Windows)
On Sat, Feb 18, 2012 at 5:08 PM, Richard Males wrote: > > I would very much appreciate any thoughts on if/how QGIS currently > deals with this, or references to documentation or postings on the > issue. Hi Richard Contributed QGIS python plugins have similar security issues like any other extension code that can be downloaded. It is important to note that with _any_ python plugin downloaded from repository you cannot be 100% sure that no malicious code is inside. The server could have been hacked, an author's credentials could be stolen or even a previously trusted author could put on his black hat (and add some malicious code intentionally)... In case you are aiming for maximum security I would recommend to use one of following approaches: 1. host a local repository within your organization with "known" and "safe" plugins. It is really easy to set up one (a web server + repository xml file + plugin archives). A customized installation of QGIS would use this repository by default. This is a flexible approach and allows upgrading/adding plugins quickly by the admin and it is convenient for users. 2. disable python plugin installer completely in a customized installation, put there only chosen plugins. Less flexible, but more secure - no new plugins, no updates to plugins. (But still possible to add plugin installer or other plugins manually) 3. provide an installation without qgispython library - that effectively disables running python code within QGIS. Most secure, least flexible. Anyway, AFAIK qgis itself should never try to do anything where it would need admin rights. So another piece of security (for users with some admin privileges) would be to disable qgis to escalate its rights. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] New Labeling: conditional labels
On Fri, Jan 6, 2012 at 1:25 PM, Martin Dobias wrote: > SQL recognizes CASE statement with following alternate syntax: > > 1. "if" equivalent: > CASE > WHEN x > 10 THEN 'big' ELSE 'small' > END Just pushed a commit implementing that. The syntax is: CASE WHEN cond1 THEN exp1 [WHEN cond2 THEN exp2]* [ELSE exp3] END There may be one or more WHEN/THEN clauses. If no condition matches, the expression from "ELSE" is evaluated - if none is specified then NULL is returned. Note: the other syntax with "base" expression (CASE x WHEN y THEN z ... END) is not supported yet. Have fun! Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] New Labeling: conditional labels
Hi On Thu, Dec 29, 2011 at 11:33 AM, Nathan Woodrow wrote: > It would be handy to add condition statements to QgsExpression so we can > support this kind of thing, Martin would be the guy to talk to about adding > this kind of thing. He knows the most about QgsExpression. SQL recognizes CASE statement with following alternate syntax: 1. "if" equivalent: CASE WHEN x > 10 THEN 'big' ELSE 'small' END 2. "switch" equivalent: CASE x WHEN 5 THEN 'five' WHEN 6 THEN 'six' ELSE 'something else' END The "else" is not required, if there is no matching "when" then NULL is returned. Some SQL engines add further functions for convenience: - MySQL [1]: IF(), IFNULL(), NULLIF() - PostgreSQL [2]: COALESCE(), NULLIF() I would suggest to implement the CASE statement to stay compliant with SQL syntax (although I find It a bit verbose). Regards Martin [1] http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html [2] http://www.postgresql.org/docs/8.1/static/functions-conditional.html ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] graduated symbols for point layers
On Mon, Nov 28, 2011 at 10:37 AM, Giovanni Manghi wrote: > This is tricky: > > if you select "advanced -> select scale field" *before* hitting > "classify" then the size symbols won't be scaled. > > If you do the other way it will work as expected. Feel free to open a ticket for that issue. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Canvas Rotation
On Thu, Nov 17, 2011 at 1:34 PM, QGIS Brasil Comunidade brasileira wrote: > Hi list, > > Is it possible rotate canvas and put the north to another direction than the > top? Hi Arthur I believe it should be possible to use a custom Proj4 projection that would rotate the entire map. The north arrow decoration in QGIS computes the actual direction to the north, so it would be updated automatically. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-developer] Re: [Qgis-user] Proposed attribute table UI redesign
On Thu, Nov 17, 2011 at 4:18 AM, Tim Sutton wrote: > Hi > > On Mon, Nov 14, 2011 at 3:41 PM, Martin Dobias wrote: > > 8<-snip--- >> >> nice stuff. One more thing I have been thinking about is that we could >> do the search in a way the browsers nowadays do it: keep the widgets >> for search hidden by default, saving further vertical space. The >> search bar would be opened only after clicking a search button or >> pressing the usual ctrl+F or "/" shortcut. >> > > Martin what is the possibility of making the search tool work across > all columns efficiently? I know from training courses I give that > selecting the appropriate column when making a search is a common > stumbling block for many users. Right, by default we should search in all columns - I also find it tedious to always select the right column. To make it efficient we should probably just skip the search using the expressions and directly search for specified string within attributes of features. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Proposed attribute table UI redesign
On Mon, Nov 14, 2011 at 5:54 AM, Nathan Woodrow wrote: > Hi all, > Today I was looking at some different ways to redesign and optimize the > attribute table UI and have come up with a design that I think works well > but would like to get some feedback first. > I have made two screenshots, showing the old and new dialog at the same size > and using the same Qt theme. > Just a plain comparison screenshot > : http://dl.dropbox.com/u/6170988/Plain.png > Comparison screenshot with notes > : http://dl.dropbox.com/u/6170988/Noted.png Hi Nathan nice stuff. One more thing I have been thinking about is that we could do the search in a way the browsers nowadays do it: keep the widgets for search hidden by default, saving further vertical space. The search bar would be opened only after clicking a search button or pressing the usual ctrl+F or "/" shortcut. Final ideas: - "show selected only" may become a checkable tool button in the group of selection buttons - IMHO the "move selected to top" button may be removed. It used to be there from the ancient times of the attribute table when there was no "show selected only" option Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] WFS reader in 1.8.0 without BBOX selection
On Wed, Oct 26, 2011 at 9:29 AM, Jukka Rahkonen wrote: > The WFS reader used to have a check box Only request features overlapping the > current view extent. In the current trunk version 1.8.0-Trunk revision > "fecb0de" > does not have the check box. It would be essential to get it back. I have a > layer in my WFS with 1.2 million polygons and it is never reasonable to try to > read the whole layer. BBOX is rather simple to use for limiting the query, > contrary to the Filter box that is new in the version 1.8.0. Hi Jukka the BBOX selection from map canvas has been temporarily disabled when porting WFS support to the new data browser. It is expected that the option will come back soon. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] how to invoke the save as image from the python console
On Fri, Oct 7, 2011 at 12:05 PM, Rhys A.D. Stewart wrote: > Greetings, > > hoping for a quick answer before i go diving through the API. is there > a quick way to invoke the save as image dialogue from the console? o > have a list of coordinates and would like to zoom in and get an image > of each area around the coords? But since i have about 250 or so > coords am not too keen on doing it manually...so then i really > dont want the save as image box to come up really i want the > functionality from the console. You can directly use QgsMapRenderer class to render the map to whatever target - in your case it would be a QImage that you can save to a file. PyQGIS cookbook gives an example how to construct and use map renderer. If you are going to use map canvas contents you may take advantage of map renderer from map canvas ( qgis.utils.iface.mapCanvas().mapRenderer() ) and only change extents and trigger the rendering. [1] http://www.qgis.org/pyqgis-cookbook/composer.html Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Error when i try to install qgis1.7
On Fri, Sep 23, 2011 at 5:44 PM, Jules Kouadio wrote: > > I get : > > qgsexpressionparser.yy:54.14-19: syntax error, unexpected "string", expecting > "=" > make[2]: *** [src/core/qgsexpressionparser.cpp] Erreur 1 > make[1]: *** [src/core/CMakeFiles/qgis_core.dir/all] Erreur 2 > make: *** [all] Erreur 2 > > Can someone help me ? Most probably you have an old version of 'bison' tool. However cmake should complain about that if you use a recent checkout from git. Could you please check what is the output if you run the following command? $ bison --version Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: [Qgis-developer] netiquette
On Mon, Sep 26, 2011 at 2:22 PM, Tim Sutton wrote: > Rather something like: > > - please disable html mode in your mail client > - please post inline, inserting your comments after each point in the > original poster's message > - please clip away extraneous / irrelevant content from the thread as > the conversation goes on > - please don't email posters offlist unless specifically invited to do so > - please refrain from using expletives and making inflammatory comments > - if you disagree with someone, please provide a considered and > logical response explaining why a different approach should be taken Frankly I do not believe that posting these rules (or a link to them) will improve the communication :-) ... mainly because the people who do not respect the usual netiquette also tend to ask wrong questions, do not read documentation or even forget to sign themselves at the end of a mail. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] plugin installer with unstable internet connections
On Wed, Sep 14, 2011 at 12:11 AM, Alister Hood wrote: > > A shared directory *on a network server*? Is there a standard way to > point QGIS to it? > Yes. Use QGIS_PLUGINPATH environment variable to set additional paths where to look for python plugins. Multiple paths can be separated by semicolons (windows) or colons (unix). The priorities when loading plugins are following: 1. plugins from QGIS_PLUGINPATH 2. plugins from user's home directory 3. plugins from qgis installation directory Please note that plugin installer always saves newly downloaded plugins to user's home directory. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] error message: Couldn't load PyQGIS. Python support will be disabled
On Sun, Aug 21, 2011 at 11:01 AM, zehari zehari wrote: > dear all, > is there any among you who can help me, I get an error message like > the following: > > Couldn't load PyQGIS. > Python support will be disabled. > > Traceback (most recent call last): > File "", line 1, in > RuntimeError: the PyQt4.QtCore module is version 1 but the qgis.core > module requires version -1 > > Python version: > 2.7.2+ (default, Aug 16 2011, 07:56:26) > [GCC 4.6.1] > > QGIS version: > 1.8.0-Trunk 'Trunk', exported > > Python path: > ['/python', '/home/zehari/.qgis/python', Hi the invalid python path suggest there is some clash with the libraries/modules. Please make sure to completely clean up your qgis installation and try again. This could be a result of some old c++ plugins in the (prefix)/lib/qgis directory or something similar - have you done any updates of Qt4, PyQt4 or sip recently? Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] python raw_input broken
raw_input() method reads data from standard input stream. I am afraid this will not work well on windows. We should probably redirect the standard input to the qgis python console in order to make this method working. Martin On Wed, Aug 10, 2011 at 1:59 AM, z x wrote: > With QGIS 1.6.0 python console on XP, input(), raw_input(), etc. don't > work using the Enter key, returns EOFError when reading a line. What > is wrong? > ___ > 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
Re: [Qgis-user] Move python plugin to a network directory
On Thu, Aug 11, 2011 at 10:45 AM, HAUBOURG wrote: > Thanks Martin, > we tried it unsuccessfully. Does this work for python plugins? Do we have to > modify he registry key to add the new plugin? Yes it shall work for python plugins. No need to modify registry. You can check whether QGIS has picked up the extra paths: open the python console in QGIS and type: >>> qgis.utils.plugin_paths It will print a list of paths used to search for python plugins. By default there is always the system plugin path and per user plugin path. > Cheers, > Régis > > PS: Good news that night, our sys admin did the qgis 1.7 install to our 70 > GIS citrix potential users... Nice. It would interesting to hear how do you use QGIS in your organization. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Move python plugin to a network directory
On Wed, Aug 10, 2011 at 6:02 PM, HAUBOURG wrote: > > Hi list, > I am looking after a simple method to deploy some custom python plugins on > several servers inside our company network. > > As I understand it, today we have 3 solutions: > 1- copy the plugins in C:\Program Files\Quantum GIS > Wroclaw\apps\qgis\python\plugins of each server. We need to disturb our admin > sys for this. > 2- copy the plugins in each personnal user directory of these server: I > prefer the first method... and my admin sys too > 3- create a repository and let the users install and update plugins > themselves.. They won't do the job I'm afraid. > > Ideally, we would like to put the plugins on a single shared network > directory. Is there a way to have qgis look in it? No symbolic link on > windows xp as far as I know. You can set QGIS_PLUGINPATH environment variable with a list of extra paths where to look for plugins. If specifying more one path then split them using semicolon on windows (colon on linux). Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] PyQGIS: how to create a layer in the console ?
Hi "gene"
On Thu, Apr 28, 2011 at 8:38 PM, gene wrote:
> Hello, I'm trying to directly import Excel files with the Python module xlrd
> in the console:
>
> >>> from PyQt4.QtCore import *
> >>> import xlrd
> >>> wb = xlrd.open_workbook('testxy.xls')
> >>> sh = wb.sheet_by_index(0)
> >>> for rownum in range(sh.nrows):
> ... print sh.row_values(rownum)
> ...
> [u'id', u'x', u'y', u'test']
> [1.0, 235.0, 424.0, u'a']
> [2.0, 245.0, 444.0, u'b']
>
> It gives the xy values and the attributes
> So, I use the script "create layer" from
> http://www.qgis.org/wiki/Python_Bindings
> http://www.qgis.org/wiki/Python_Bindings with no problem for adding the
> layer and the points to the canvas except for the attribute table that
> remains empty
>
> The question is how to create a valid layer in the console?
Please post a relevant part of your script that creates a layer and
adds the data. Knowing your QGIS version would be helpful, too.
Martin
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Re: [Qgis-user] symbol rotation in Ruled based symbology
On Sat, Apr 16, 2011 at 8:32 PM, Saber wrote: > Hi all, > > Is there an option to rotate a symbol in the New Symbology > Ruled Based Yes :) In case you would like to rotate the symbol using a data-defined rotation while using the rule based renderer then the answer would be no. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Rule renders and colour ramps
On Sun, Apr 10, 2011 at 2:54 AM, Ramon Andinach wrote: > > On 09/04/2011, at 20:20 , Martin Dobias wrote: > >> Hi Ramon >> >> On Sat, Apr 9, 2011 at 1:51 AM, Ramon Andinach >> wrote: >>> On a related thought to the recent questions about rule renders. Mostly I'm >>> using the rules to define colour schemes that I can't work out how to get >>> otherwise. >>> >>> Is there a way to define custom colour ramps? >>> Particularly I'm thinking of colour brewer ramps. >>> If there is, could someone point me in the right direction? >> >> Yes it is possible to define custom color ramps: either in Style >> manager dialog (menu Options -> Style manager) or when selecting a >> color ramp for categorized/graduated renderer, the last item in the >> combo box is "new color ramp". There is a support for gradients, >> random colors and colorbrewer ramps. > > Thanks for that. > If I see properly, for colour brewers, I get to choose a colour pattern > suite, how many colours are there and that's about it. > Now, what happens if I was looking for something that was approximately like > the Spectrum colourbrewer, but with the colours backwards (blues low, reds > high) (or even define whole new colour suites). > Is that possible? Unfortunately this is not (yet?) possible. We are still missing discrete color ramps which would allow you to define custom colors, allow reversing of colors etc. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Rule renders and colour ramps
Hi Ramon On Sat, Apr 9, 2011 at 1:51 AM, Ramon Andinach wrote: > On a related thought to the recent questions about rule renders. Mostly I'm > using the rules to define colour schemes that I can't work out how to get > otherwise. > > Is there a way to define custom colour ramps? > Particularly I'm thinking of colour brewer ramps. > If there is, could someone point me in the right direction? Yes it is possible to define custom color ramps: either in Style manager dialog (menu Options -> Style manager) or when selecting a color ramp for categorized/graduated renderer, the last item in the combo box is "new color ramp". There is a support for gradients, random colors and colorbrewer ramps. Btw. you are doing a great job with the "how do I do" pages on the wiki! Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Understanding the rule-based renderer
On Fri, Apr 8, 2011 at 11:36 AM, Andreas Neumann wrote: > Hi, > > I am trying to better understand the rule based renderer. > > Which version is correct? > > a) QGIS is rendering all features of the first rule, then the second rule, > etc, Features of the first rule are rendered first, features of the second > rule on top of features from the first rule > b) QGIS is rendering each feature on by one and decides which rule applies. > > I hope it is not version b), I hoped it behaves like version a) but it > behaves a bit odd with my data. For my data it seems like the order of the > rule has no influence on the rendering order ;-( Hi Andreas the rule based renderer uses the b) option: it goes through the features one by one and applies all matching rules (in the order in which they appear). Mayeul Kaufmann has done some work in order to support option a) by implementing support for symbol levels so that the rendering order can be overridden. My ultimate goal is to only support the option a) in a way how SLD specifies it: rules are grouped and these groups are rendered one after each other. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Send us your tips!
On Wed, Mar 2, 2011 at 9:56 AM, Tim Sutton wrote: > Hi Martin > > On Wed, Mar 2, 2011 at 10:48 AM, Martin Dobias wrote: >> On Wed, Mar 2, 2011 at 12:25 AM, Alister Hood >> wrote: >>> But I think symbol levels should probably be enabled by >>> default, in which case this tip wouldn't be necessary :) >> >> Rendering with symbol levels is more costly, so -1 for me to enable it >> by default. >> > > I remember debating this with you at Wroclaw. Is it more costly also > in situations where symbols are simple and have 1 layer each only? In > the case of multilayer symbols I would say 99% of the time I want > symbol levels on. I do quite a lot of training and the symbol levels > is something that a) new users struggle to comprehend and b) gets > forgotten as a detail after the training and then people come back to > me asking why their maps look funny. I think from a user friendliness > point of view, there would be a lot gained by enabling it by default > (performance issues notwithstanding). Maybe we should add it as > another item in our endless options panel (which I will reorganise in > Lisbon)? Hi Tim yes, it's more costly also for symbols with just one symbol layer. The idea is that the features in current view are loaded into memory first (with a reference to symbol that will be used) and then rendered. So there is some memory overhead and some cpu overhead (unsure about the total amount). The case with just one symbol layer could be probably optimized to some degree. I am not sure what to do here. The concept of symbol level is quite advanced and becomes more complex when drawing things like highway crossing (I still haven't found time to write a blog post explaining how that could be done). Maybe another topic for upcoming hackfest? :-) Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Send us your tips!
On Wed, Mar 2, 2011 at 12:25 AM, Alister Hood wrote: > But I think symbol levels should probably be enabled by > default, in which case this tip wouldn't be necessary :) Rendering with symbol levels is more costly, so -1 for me to enable it by default. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis OSM plugin misses features on save.
On Mon, Feb 28, 2011 at 8:39 PM, Manoj Bist wrote: > Hi Martin, > I will open a ticket. > I can volunteer to fix this myself. I would really appreciate if someone > could point me to OSM plugin code/any other document to get started. Hi you are welcome to fix the problem. You will need some Python and Qt knowledge and learn a bit of QGIS API. The recommended starting points are: PyQGIS developer cookbook: http://www.qgis.org/pyqgis-cookbook/ QGIS API documentation: http://doc.qgis.org/head/ And there are various other tutorials and blog posts floating on the web... I would suggest you to first check out qgis source code from SVN repository. The code of OSM plugin is in python/plugins/osm directory. This might be useful, too: http://www.qgis.org/wiki/Building_QGIS_from_Source Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis OSM plugin misses features on save.
On Sun, Feb 27, 2011 at 6:53 AM, Manoj Bist wrote: > Hi, > I am using qgis version 1.6.0 on ubuntu-karmic. > The OSM plugin is missing out quite a few osm features on Save. > This is what I am doing. > > Load an OSM file. (Step 1) > Add a way. (Step 2) > Save to a new OSM file. (Step 3) > > The new OSM file that I saved in step 3 does not have all the features > including the ones that were in the original OSM file loaded in step 1. > I would really appreciate any insight into resolving this. > I've spent quite a bit of time on this. Hi please create a ticket for this issue in our bug tracker and attach as much details as possible: http://trac.osgeo.org/qgis Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] hackfest Lisbon, Hotels
On Mon, Feb 21, 2011 at 1:57 PM, Giovanni Manghi wrote: > Hi all, > > Paolo and Giuseppe had already reserved their flights and hotel room. > > They will stay here > > http://www.ibishotel.com/gb/hotel-2117-ibis-lisboa-saldanha/index.shtml > > that is 30 minutes away from the venue by walk or 10/15 by metro. > > I suggest everyone that want to come to the hackfest to start thinking > book early their flights and hotels as the hackfest days are near Easter > holidays and many tourist are expected to visit Lisbon. > > You can find many good links at the usual page > > http://www.qgis.org/wiki/5._QGIS_Hackfest_in_Lisbon_2011 Hi Giovanni it would be good if you could pick e.g. one hostel and one hotel for us which are preferred, so that the number of locations where people stay is minimized. It is simpler and more pleasant when you can meet with others in lobby in the morning, have a breakfast and go to the venue in a group. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QgsVectorLayerDataProvider problem?
On Fri, Jan 14, 2011 at 8:39 PM, Gary Smith wrote:
> Hello,
>
> I am not sure whether this is the right forum but extensive Google searches
> have not helped. I am writing a plugin to convert the segments of a polyline
> to a layer of individual 2 vertex line features.
>
> This is the code I used to do the job
>
> feat = QgsFeature()
> p = 0
> while p < cl.featureCount():
> cl.featureAtId(p, feat, True, True)
> geom0 = QgsGeometry(feat.geometry())
> vl = QgsVectorLayer("LineString", "Mylines", "memory")
> provider = vl.dataProvider()
> provider.addAttributes( [ QgsField( "id" , QVariant.String),
> QgsField( "agl" , QVariant.String) ])
> pnt10 = QgsPoint( geom0.vertexAt(0) )
> segfeat = QgsFeature()
> itr = 1
> while ( QgsPoint( geom0.vertexAt(itr) ) <> QgsPoint(0,0) ):
> pnt10 = QgsPoint( geom0.vertexAt(itr -1) )
> pnt11 = QgsPoint( geom0.vertexAt(itr) )
> newGeom = QgsGeometry.fromPolyline( [ pnt10, pnt11 ] )
> segfeat.setGeometry( newGeom )
> segfeat.setAttributeMap( { 0 : QVariant( str(itr) ), 1 :
> QVariant( str(agl) ) } )
> provider.addFeatures( [segfeat] )
> itr += 1
> p += 1
> vl.commitChanges()
> QgsMapLayerRegistry.instance().addMapLayer(vl)
Hi Gary
I'm not sure what exactly you are trying to do. From the code snippet
it looks that for each feature of the original layer you create a new
layer! That's probably not what you want, is it?
I have few more suggestions:
- iterate over the input using select() and nextFeature() methods
instead of featureAtId(). Generally IDs of features are not increasing
from 0. The former approach guarantees you that you will not miss any
features
- to work with geometry, you can call geometry's asPolyline() method
to get a list of points - more convenient than calling vertexAt()
- no need to call vl.commitChanges() since you do changes directly to
the provider
Martin
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Re: [Qgis-user] error postgis manager
On Tue, Nov 23, 2010 at 3:29 PM, Dario wrote: > [...] > File "C:\Documents and > Settings\Dgalvao/.qgis/python/plugins\postgis_manager\DatabaseModel.py", > line 77, in constructTreeFromDb > list_tables = db.list_geotables() > File "C:\Documents and > Settings\Dgalvao/.qgis/python/plugins\postgis_manager\postgis_utils.py", > line 256, in list_geotables > items[i] = geo_item > IndexError: list assignment index out of range Hi, does this happen every time you try to connect to your database? Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: AW: Re: Fwd: [Qgis-user] QGIS "Near"
On Thu, Oct 28, 2010 at 7:48 AM, Ziegler Stefan wrote: > Hi Giuseppe > > thanks for looking into this. Do you think it's worth filling out a bug > report since the nearestNeighbor method does not the keep the promise or is > this the normal behaviour of a spatial index based method? Spatial index uses only the bounding boxes of geometries for two reasons: most importantly the intersection test (used when traversing the data structure) is much faster when compared to testing intersection of real geometry. Second, this would require spatial index to store all geometries - this memory overhead can be significant for bigger layers. So as David already suggested, to ensure you are really working with the nearest geometry, you should check the real distance. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] 'snapSegmentWithContext' with Quantum Navigator
Hi Joe the Quantum Navigator project has been dead for several years, so such errors from old API calls can jump at you from any corner. I'm quite busy nowadays, so I guess you're on your own :-( btw. for your particular error: try to have a look at the QgsVectorLayer class. There are other snap*() functions which I believe have replaced that snapSegmentWithContext method. Regards Martin On Sun, Oct 17, 2010 at 5:54 PM, Joe Larson wrote: > Hello All, > > I'm trying to get Quantum Navigator > http://www.mapserver.sk/~wonder/qnavigator/ going on Maverick Meerkat, built > against QGIS trunk. > > jef on IRC helped me with the API switch past QGIS 1.0, which got me past > the initial 'make' compile. I got through ./dgbuild and can run > qnavigator.py, but when I am in the 'Routing' tab and pass a Start event > from(to) the map. > > seems 'snapSegmentWithContext' is stumping me: > > > Traceback (most recent call last): > File "/home/joe/dev/qnavigator/python/gui/tools.py", line 21, in > canvasReleaseEvent > self.callback(self.pos) > File "/home/joe/dev/qnavigator/python/gui/main.py", line 257, in gotStart > pnt = self.routing.setStart(pos) > File "/home/joe/dev/qnavigator/python/routing/routing.py", line 159, in > setStart > self.start = self.layer.findNearestPoint(point) > File "/home/joe/dev/qnavigator/python/routing/routing.py", line 84, in > findNearestPoint > (result, point, vertexIndex, fid, geom) = > self.snapSegmentWithContext(point, RoutingLayer.tolerance) > AttributeError: 'RoutingLayer' object has no attribute > 'snapSegmentWithContext' > > > does anyone have any advice? i tried adjusting the tolerance, researching > besides that...thank you, > > ~joe > > ___ > 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
Re: [Qgis-user] QgsVectorDataProvider.deleteAttributes(), PyConsole problem
Hi Chris
On Wed, Sep 29, 2010 at 5:32 PM, Chris Carleton
wrote:
>
> import qgis.core
> import qgis.gui
> import PyQt4.QtCore
> import PyQt4.QtGui
> vlayer = qgis.utils.iface.activeLayer()
> provider = vlayer.dataProvider()
> feat = QgsFeature()
> newField = QgsField("azimuth",QVariant.Double)
> provider.addAttributes([newField])
> newFieldIndex = provider.fieldNameIndex(newField.name())
> vlayer.commitChanges()
>
> When I try to use the following code to delete the column, the function
> returns 'false';
>
> provider.deleteAttributes([newFieldIndex])
Not all providers support all editing operations. For example, OGR
library does not support deleting attributes. To check what operations
are working, use provider's capabilities() method:
print "delete supported?", provider.capabilities() &
QgsVectorDataProvider.DeleteAttributes
One more note: in the above code, you use layer's commitChanges()
method. This is not necessary (nor correct) here, here's the deal:
When calling provider's editing methods, the changes are immediately
written to the data store (file / database etc). On the other hand,
editing methods of QgsVectorLayer use a temporary buffer and the
workflow is as follows:
1. call vlayer.startEditing() ... otherwise the layer's editing
functions will fail
2. call layer's editing methods ... all changes are kept in the editing buffer
3. call vlayer.commitChanges() ... to push the pending changes to the provider
Alternatively instead of committing changes, you could do a rollback:
vlayer.rollback() to discard any changes.
Both commitChanges() and rollback() quit the editing mode, so you
would have to call startEditing() again.
Regards
Martin
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Re: [Qgis-user] Print composer and Python
Hi Stefan On Sat, Jul 24, 2010 at 8:16 PM, Ziegler Stefan wrote: > Hi > > I'm trying to access the print composer with python: > > self.iface.actionPrintComposer().trigger() > composerList = self.iface.activeComposers() > composerView = composerList[composerList.index(max(composerList))] > > composition = composerView.composition() > composer = composerView.composerWindow() > composition.setPaperSize(float(width), float(height)) > composer.show() > > > This works twice but the third time two windows will open: one with the > standard papersize and one with my custom papersize. I think the problem is that composers within QGIS are stored in a QSet (and not in QList data structure) which makes the ordering of composers different from the order how new composers are added. So the new composer you trigger will not always be the last one you retrieve in the list. You could work this around by checking activeComposers() before and after triggering a new composer and finding out which composer is the new one. Not optimal, but probably sufficient. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Configuring line decorations (e.g. arrowheads)
Hi Andreas On Fri, Jul 9, 2010 at 9:40 AM, Andreas Neumann wrote: > In the new symbology I can add a line decoration, such as an arrowhead. > However, I think most of the configuration options are not exposed (or am > I missing something). > > I would expect being able to configure the following: > > * select SVG symbol (currently the default is an arrowhead, but new symbol > chooser dialogue) > * select decoration placement: start, end, middle of the line > * select symbol size > > Currently I can only select the symbol color and the arrowhead is always > placed at the end of the line - no way to add a decoration at the > beginning of a line. > > Am I missing a dialogue or something hidden in the GUI? Or are these > options simply not yet implemented/exposed? The configuration options are not yet implemented, it's not just missing GUI. I agree with you that more options like symbol type, size and placement are desired - code contributions implementing them are welcome. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Serious bug returns to Qgis revision 13878
On Tue, Jul 6, 2010 at 10:39 AM, Giovanni Manghi wrote: > Hi, > >> in my opinion, we could actually remove this feature. I don't find it >> particularly useful (a raster scaled down to 16x16 pixels usually >> doesn't provide a good overview) > > > actually it helps quite a lot when working with (many) layers as rasters > with different color maps are easily identified. Would it be sufficient if only the color map would appear in the icon? Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Serious bug returns to Qgis revision 13878
Hi On Tue, Jul 6, 2010 at 8:35 AM, Marco Hugentobler wrote: > Hi William > > Ah, good to know it is the icon generation that makes loading projects with > many raster layers slow. > > Making a user option to disable layer icons sounds good. However, this would > involve a string change (option dialog). String freeze for 1.5 is already over > for a while now. So (unless there is a better solution for the problem without > string change) something for 1.6... in my opinion, we could actually remove this feature. I don't find it particularly useful (a raster scaled down to 16x16 pixels usually doesn't provide a good overview), it adds additional overhead when the raster layer is loaded and further complicates the complex raster code. Another argument could be that vector layer also don't have an icon containing the preview. I'm just afraid of creating too many configurable options that barely anyone will understand their purpose. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Problems using OSM plugin
Hi Carlos please file both bugs in Trac. (for the first problem - encoding handling should be handled by the plugin, no need to set it manually) Martin 2010/6/6 Carlos Dávila : > I'm trying to use OSM pluging for editing data for the first time and am > facing some problems: > 1- When I upload edited data I get the error below, no matter if I edit a > saved osm file or freshly downloaded data: > > Upload process failed. OpenStreetMap server response: Bad Request - Cannot > parse valid way from xml string version="0.6" generator="OpenStreetMap server"> visible="true" timestamp="2010-04-05T10:50:23Z" user="antecessor" > version="10" changeset="4919909"> ref="248219763"/> ref="248219766"/> ref="248219769"/> ref="412472837"/> ref="412472711"/> ref="447083436"/> ref="248219777"/> v="primary"/> v="EX-206"/> v="asphalt"/>. Fatal error: Input is not proper UTF-8, indicate > encoding !. > How should I indicate encoding? > > 2- When using "Move feature" tool, after selecting a feature, any mouse > movement causes a Python error: > > Ha ocurrido un error mientras se ejecutaba el código de Python: > > Traceback (most recent call last): > File > "/usr/local/qgis/share/qgis/python/plugins/osm/map_tools/OsmMoveMT.py", line > 587, in canvasMoveEvent > (deltaX,deltaY)=self.__getDeltaForPoint(event) # snapping is done in > this function > File > "/usr/local/qgis/share/qgis/python/plugins/osm/map_tools/OsmMoveMT.py", line > 648, in __getDeltaForPoint > (self.snapFeat,self.snapFeatType)=self.dbm.findFeature(snappedPoint) > TypeError: 'NoneType' object is not iterable > > Versión de Python: > 2.6.5+ (release26-maint, May 30 2010, 13:56:50) > [GCC 4.4.4] > > > Versión de QGIS: > 1.5.0-Trunk Trunk, 13635M > > Ruta de Python: ['/usr/local/qgis/share/qgis/python', > '/home/carlos/.qgis/python', '/home/carlos/.qgis/python/plugins', > '/usr/local/qgis/share/qgis/python/plugins', '/usr/lib/python2.6', > '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', > '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', > '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', > '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/python2.6', > '/usr/lib/python2.6/dist-packages/gtk-2.0', > '/usr/lib/pymodules/python2.6/gtk-2.0', > '/usr/local/lib/python2.6/dist-packages', > u'/home/carlos/.qgis//python/plugins', > '/usr/local/qgis/share/qgis/python/plugins/fTools/tools'] > > ___ > 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
Re: [Qgis-user] Find group of a layer in Python plugin
On Fri, May 28, 2010 at 11:02 PM, Ron Bentley wrote: > I'm sure the answer is right in front of me; I just haven't found it yet: > > Given a layer, is there any way to find out if the layer is part of a group > in the legend, and if so which group -- from inside a Python plugin? QGis > 1.4.0 here. Hi Ron there's a QgsLegendInterface class available for this kind of tasks. Unfortunately it currently doesn't have such functionality, though we would welcome any patches that add such functionality. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] venue for the next hackfest
Hi Milena! On Mon, May 24, 2010 at 2:00 PM, Milena Nowotarska wrote: > Hi all, > > thinking about the next hackfest we could organize it in Wroclaw, > Poland, at the University. > Wroclaw is an old, beautiful city easily accesible by train or plane. > > The venue we propose is Department of Climatology and Atmosphere > Protection, University of Wroclaw. It is located in the most beautiful > part of Wroclaw and is freely available from June to September. But > having in mind Barcelona conference, we think it would be convenient > to plan the hackfest for begining of July, lets say 2nd-5th of July. This could be a nice QGIS summer camp :-) Hopefully there will be enough interest in developer community to participate... Bye Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] limits of delimited text plugin
On Thu, Apr 22, 2010 at 8:20 AM, maning sambale wrote: > Hi, > > I am importing the GNS names textfile in to a point vector. Th etext > file has 117,000 lines using the delimited text plugin I was able to > import on 81,665. Is there a limit to the number of records we can > import with the delimited txt plugin? There is no such limit on feature count, maybe there were some problems during the parsing. Please file a ticket for that with a link to the data. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] color ramp
On Tue, Apr 20, 2010 at 4:06 PM, Lionel Roubeyrie wrote: > \o/ Excellent! \o/ > but... just one problem, opening the svn version, look at the color > ramp, closing it and back to 1.4, all my customs gradients (not > brewers) are now in black to black. However, now I can live without > them :) I believe this incompatibility has been introduced by some earlier changes in 1.5 that add alpha channel to the representation of colors. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Adding attributes to a layer with "memory" provider
2010/4/19 Václav Řehák :
>> [...]
>> You can add attributes using this code:
>>
>> pr = self.lines.dataProvider()
>>
>> # add fields - to preserve correct order they must be added one-by-one
>> (d'oh)
>> pr.addAttributes( { "name" : "string" } )
>> [...]
>
> I have tried your suggestion, but it also doesn't work for me:
>
> self.lines = QgsVectorLayer("LineString", "temporary_lines", "memory")
> pr = self.lines.dataProvider()
> self.lines.startEditing()
> added = pr.addAttributes( { "label" : "string" } )
> QgsMapLayerRegistry.instance().addMapLayer(self.lines)
> self.lines.commitChanges()
Ouch, sorry I was wrong, I've mistakenly pasted an invalid snippet.
This is how to do it:
lines = QgsVectorLayer("LineString", "temporary_lines", "memory")
pr = lines.dataProvider()
ret = pr.addAttributes( [ QgsField("label", QVariant.String) ] )
QgsMapLayerRegistry.instance().addMapLayer(lines)
(can be used from python console, too)
Regards
Martin
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Re: [Qgis-user] color ramp
On Fri, Apr 16, 2010 at 9:56 AM, Lionel Roubeyrie wrote: > Hi all, > Is there a way to make a gradient color ramp with more than 2 colors > (adding intermediates colors)? The style manager doesn't give more > choices and for displaying large dataset this can be very usefull and > would give better rendering... Hi, it is possible from r1. bye Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Adding attributes to a layer with "memory" provider
Hi Vaclav,
2010/4/19 Václav Řehák :
> Hi,
>
> in my plugin I create a layer using the following code:
>
> self.lines = QgsVectorLayer("LineString", "temporary_lines", "memory")
> self.lines.startEditing()
> field = QgsField("label", QVariant.String)
> field.setLength(100)
> ret = self.lines.addAttribute(field)
> QgsMapLayerRegistry.instance().addMapLayer(self.lines)
> self.lines.commitChanges()
>
> However, the field is not added to the layer and "ret" is false. I realized
You can add attributes using this code:
pr = self.lines.dataProvider()
# add fields - to preserve correct order they must be added one-by-one (d'oh)
pr.addAttributes( { "name" : "string" } )
pr.addAttributes( { "age" : "int" } )
pr.addAttributes( { "size" : "double" } )
Your approach should ideally work too, but as I'm looking into the
code, there are some missing bits that prevent your code to work as
well. I'll fix it, but the solution I've posted above will work with
older qgis releases, too.
> I am not even able to add the attribute in the GUI using layer Properties
> dialog - the Type dropdown in Attributes - Add column window is empty. Is it
> bug or a feature that I cannot add attributes to memory layer?
That's the same problem you had with python code: there is missing a
list of native types.
Regards
Martin
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Re: [Qgis-user] developement on qgis
Hi Mahavir On Mon, Apr 19, 2010 at 7:50 AM, mahavir trivedi wrote: > dear all friend > > > i wish to know that how can customize qgis source code > > where it download from ? http://qgis.org/en/download.html > which editor i used ? Whichever editor you prefer. > what technology used ? C++ and Qt libraries. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] Simplify the download pages
On Mon, Apr 12, 2010 at 1:09 AM, Alex Mandel wrote: > Based on some feedback I've gotten from some users the download pages > are still too complicated and have too many choices. It's not clear to > anyone but advanced and involved users what the right thing to get is. I also get feedback from people that the pages are confusing. I post my suggestions that might improve the usability (not limited to downloads): 1. Main page The text content is too dull to read it. People are in a hurry and usually want to know a) what is qgis, b) how does it look like c) how to get it. Therefore I suggest: - a short statement about QGIS in larger font + link: learn more (leading to about QGIS page) - big download button on the right side - small screenshot below the download button + link: more screenshots - below this there could be a news section (hackfests, releases, ...) 2. About page I would suggest to merge it with "features" page and make the screenshot smaller (again with link to more screenshots) because otherwise it doesn't bring any news besides the short history. 3. Download page For a good orientation, I would suggest to have these 4 options (aligned in a 2x2 table, large font): - Current version - Long term support version - Plugins - Sample data Each option would be a link to a separate page and could have a small annotation text below the link. Finally at the end of the page there could be a list of pages for older releases. 4. Download page for any version First a short introduction what the version is about (current release / LTS / older release). No tables, just a section (ideally with a platform icon for easier orientation): - WINDOWS - standalone - with/without grass - osgeo4w - instruction - MAC - instructions - LINUX - instructions for various distributions - SOURCE I believe this would make the first impression a bit better... Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QuantumGIS sailing sponsorship
On Thu, Apr 1, 2010 at 10:48 AM, Paolo Cavallini wrote: > > Hi all. > It is a great pleasure to announce that QuantumGIS is the sponsor of a > racing sailing > boat (Quantum racing): > http://www.youtube.com/watch?v=uLfekPLvUvE > Thanks to our sponsors, who allowed us to increase our visibility on > international markets, putting us on a par with older software houses who > sponsor this kind of competitions since long. Paolo, that is really exciting news! I believe this sponsorship only underlines our intent to keep our #1 leadership in the field GIS solutions. Additionally, with recent addition of live GPS tracking we prove that Quantum GIS is ready to dominate also the sector of GPS software (especially the segment of marine GPS) and continues to win the world market with immense innovations. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Segmentation fault...
On Mon, Mar 1, 2010 at 7:16 PM, Micha Silver wrote: > Luigi Castro Cardeles wrote: >> >> Thanks Martin, >> >> i use a compiled qgis. >> For Fedora Users, i think that this update comes with kde-4.4.0 updates. >> []'s >> > I also have a self compiled qgis 1.4. After updating to the new PyQt4 and > sip (also updated qt and qt-x11 packages) last week, I recompiled, and still > get the segfault. And again, after switching to xfce, QGIS starts fine. > Under Gnome, QGIS will start only if run as super user. So my guess is that > the problem is some interaction between Gnome and Qt in the newer packages. To check whether this hypothesis is correct, you can try to run some other Qt application(s) within your gnome environment. Another reason of the crash could be a malfunctioning plugin... Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Segmentation fault...
On Mon, Mar 1, 2010 at 5:23 PM, Luigi Castro Cardeles wrote: > Hi list, > maybe there are other problem (relate to pyqgis): > > Não foi possível carregar PyQGIS. > Suporte à Python vai ser desabilitado. > > Traceback (most recent call last): > File "", line 1, in > RuntimeError: the sip module implements API v7.0 but the qgis.core module > requires API v6.0 This looks like you've updated sip package in your system, however qgis python module still awaits older version. - if you run self-compiled qgis, just recompile it and install again. It should adapt to newer sip version - if you run qgis from a distribution package, request an updated package from the packager - you could downgrade sip package and all packages that depend on it (PyQt, PyKDE) but I wouldn't recommend that as it might break your system Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] crash during line editing
On Fri, Feb 12, 2010 at 4:17 PM, Giovanni Pasini wrote: > Hello, > I have problem attemting to editing a new linear feature and also alter > an existing one. I open a new qgis session, create a line shapefile, > start editing, make some vertices, rigth-clik to end and qgis crash > with this message: > > Fatal: ASSERT failure in QVector::operator[]: "index out of range", > file /usr/include/qt4/QtCore/qvector.h, line 337 Fixed in r12954. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] postgis layer cannot edit anymore after adding version in PostGIS Manager
On Fri, Feb 12, 2010 at 9:49 AM, maning sambale wrote: > > I tried adding an area column and used the the Data Processing to > compute for the area. Next, I used the versioning table which added > additional columns id_hist, time_start, time_end > > Now when I tried editing the postgis layer, I cannot save my edits. > An error report says: > > ERROR: invalid input syntax for integer: "197461.982774913" > CONTEXT: PL/pgSQL function "parcel_stat_calc_area" line 3 at assignment > > > Any idea how to solve this? Totally a newbie with postgis (liking it so far). Looks like you've set the trigger function for automatic area calculation to a field with integer type. The returned area is a double precision number and PostgreSQL obviously doesn't want to cast it automatically to int. For an easy solution I would recommend you to change the column from 'int' to 'double precision' type. Just to get rid of the error, you can delete the trigger function "parcel_stat_calc_area" in postgis manager - but the areas won't get updated. Anyway, if there's anyone more PostgreSQL savvy than me, he/she could advise how tell PostgreSQL to play nicely also with int type, i.e. how to modify this line: NEW.id_water := area(NEW.the_geom); > Another question, I saw this video: > http://www.youtube.com/watch?v=2ShYUU-e4JM > > Showing postgis/geoserver edit versioning with history, rollback, etc. > Are there plans for a similar QGIS plugin? I'm not aware of such a plugin (or plans to make it), but definitely it would be handy. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Geoprocessing question
On Fri, Feb 5, 2010 at 12:36 PM, Zoran Jankovic wrote: > OK list, here is one more philosophical GIS question, with more than one > answer possible. > Task: create one layer with street names, house numbers and city name > Set up: > - vector layers are all shapefiles > - one layer with points, attribute filed is "house_number" (presumably, > someone will input this data point by point, by digitizing or GPS > surveying...) > - the second layer is "street buffer" - created from "streets", contains > "street_name" field, among others I had a similar task some time ago: match address points with street name and house number to a roads layer, then assign house number intervals for each road segment (also taking care whether the point is on left/right side). If you're not afraid of some python scripting, it's a powerful way to go. I've ended up with doing these steps: 1. load roads layer to memory and create a spatial index for quick access (using QgsSpatialIndex) 2. go through points one-by-one, find close road segments and check whether road's name matches to the one of the point, determine on which side of the road the point lies 3. assign the intervals to the roads layer I've even found an old screenshot visualizing matched points with roads: http://mapserver.sk/~wonder/qgis/adr_body.png ... from the picture you can see I was using ancient 0.8 release :-) To your question about storing data in PostGIS: that never hurts. Having your data in database is usually very convenient even if you're not going to do some complex queries. And you can use indexes for faster access. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Smooth track animations
On Wed, Jan 27, 2010 at 9:06 PM, Rowe, Thomas wrote: > I’m trying to make a tool that produces animations where a large number of > icons *smoothly* travel along waypoint paths on a map. Is QGIS appropriate > for this? Any pointers into the documentation? If not can anyone point me > to a good tool? Hi Thomas, yes, it shouldn't be a problem to do animations within QGIS. Map canvas is based on Qt Graphics View framework [1], which is very powerful for such work. See map canvas [2] documentation. It might find some tutorials handy [3]. They're using c++ but they're also available in Python [4]. [1] http://doc.trolltech.com/4.6/graphicsview.html [2] http://doc.qgis.org/head/classQgsMapCanvas.html [3] http://blog.qgis.org/taxonomy/term/1 [4] http://blog.qgis.org/node/59 Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Qgis slow start up
On Thu, Jan 21, 2010 at 9:35 PM, Peter Ersts wrote: > > stock GDAL v1.5.4 on Ubuntu 9.10 segfaults on every image in the 18sth > directory. As Marco mentioned it will be good to hear from William or Tom > regarding which version of GDAL is being used if their load times are slow. > I will have to try with a different version of GDAL. I'm also experiencing a segfault - within libjasper library - so GDAL is not the one to blame. (other applications using libjasper crash too) Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] fill patterns in map printing
Andreas, On Thu, Jan 21, 2010 at 3:00 PM, Andreas Neumann wrote: > I saw, however, another problem (probably bound to antialiasing problems). > There are some artefacts behind the SVG pattern when the layer below has a > darker fill. > > See these two examples: > * http://www.carto.net/neumann/temp/svg_pattern_antialiasing_problem.png > * http://www.carto.net/neumann/temp/svg_patttern_antialiasing_problem_1.png try r12810 whether it helps - it should rasterize the svg with transparent background (instead of white) Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis.core and qgis.gui DLL bug in Qqis Windows?
On Sat, Jan 16, 2010 at 2:57 AM, Noli Sicad wrote: > Martin > >> I think the problem is that even if you run python from osgeo4w >> console, the qgis python modules won't get loaded because the path to >> the qgis libraries is not set. I guess you need to do something like: >> SET PATH=c:\qgis\bin;%PATH% >> (with the correct path to QGIS bin directory) > > This is my windows PATH: > > C:\Documents and Settings\Noli>echo %PATH% > > [...] > ;C:\OSGeo4W\apps\qgis-unstable\lib;C:\OSGeo4W\apps\qgis-unstable\python\qgis;C:\ > OSGeo4W\apps\qgis-unstable\python;C:\OSGeo4W\apps\qgis-unstable\python\plugins;C > :\OSGeo4W\apps\qgis-unstable\bin;C:\OSGeo4W\apps\Python25\Lib\site-packages\qgis > ;C:\Python25\Scripts;C:\BORLAND\BCC55\BIN; So then the PYTHONPATH variable is not set correctly. This is the custom search path for python modules. Try: SET PYTHONPATH=C:\OSGeo4W\apps\qgis-unstable\python;%PYTHONPATH% Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis.core and qgis.gui DLL bug in Qqis Windows?
On Thu, Jan 14, 2010 at 2:58 PM, Noli Sicad wrote: > Hi, > > I am not really sure if this problem has been address already. It > seems that there is problem in importing ggis.core and qgis.gui in > windows installation. > > http://www.mail-archive.com/qgis-user@lists.osgeo.org/msg04198.html I think the problem is that even if you run python from osgeo4w console, the qgis python modules won't get loaded because the path to the qgis libraries is not set. I guess you need to do something like: SET PATH=c:\qgis\bin;%PATH% (with the correct path to QGIS bin directory) Anyway I'm not currently on windows so can't confirm. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Python Console and python scripts geoprocessing in QGIS
Hi Noli On Thu, Jan 14, 2010 at 2:04 AM, Noli Sicad wrote: > [...] > > Did anybody manage to use qgis in python? > > from PyQt4.QtCore import * > from qgis.core import * > Do you mean to run python scripts from command line that would use functionality of QGIS libraries? It's possible to do it and many times very useful. I've written several such scripts for various uses, e.g. map rendering or aligning points with street numbers to network of streets. It's also possible to create interactive applications using QGIS gui library where you can use map canvas with just few lines of code (see [1]). > I think it would be useful if some of the authors of those python > plugins can demonstrate how to use the functions / commands in python > script in QGIS python console or just in python CLI. We can mix and > match command for geoprocessing to unless the power of QGIS. I know > what can R GEO can do. As Carson have already written, there are barely any plugins which would have good support of interaction from QGIS python console (although I admit it would be very useful). It depends how well is the plugin code split into 'core' and 'gui' part: having core code bounded tightly with the gui would make it hard to use plugin's functionality from console. Second problem is that probably not many plugin developers are willing to keep some code compatibility among different versions to ensure that potential users don't have to change the code with new versions. Anyway, just a small example how the plugins can be accessed (PostGIS Manager plugin is used and prints DB server info): >>> pm = qgis.utils.plugins['postgis_manager'] >>> pm.dlg.db.get_info() u'PostgreSQL 8.3.8 on x86_64-pc-linux-gnu, compiled by GCC gcc-4.4.real (Ubuntu 4.4.1-3ubuntu3) 4.4.1' Of course the plugin must be started first. Btw. this works for QGIS >= 1.4. For QGIS <= 1.3 the first command would be: >>> pm = plugins['postgis_manager'] [1] http://blog.qgis.org/node/59 Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: labelling point layer
Hi Piotr, this functionality is planned, but I can't give you currently any estimate when to expect it. Regards Martin 2010/1/6 Piotr Pachół : > Hello Martin, > > Is it possible to add one function in your labeling plugin ?: > It means the possibility of choosing one of layer attributes as a field > where an angle for labels is kept. > It would be very usefull for point layers and perhaps for polygon layers. > For instance I must visualize map with address numbers. Each number should > be rotated differently. > Now there is only possibility to rotate all labels with the same angle. > > Regards, > Piotr > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] v1.40 polygon editing in a new layer
Hi, please check in Options > Digitising whether you don't have vertex search radius set to zero (or too small tolerance) Martin On Sun, Dec 20, 2009 at 12:59 AM, Fred LaPlante wrote: > I am unable to edit nodes in a newly created polygon layer. > > Using the node tool I can edit polygons in other layers created with ver 1.3 > and earlier. > > But after enabling edits on the new layer, and selecting the node tool, no > amount of clicking on any node of a new polygon has any effect. Nor am I > able to delete a new polygon feature (only effect is to remove the selection > highlighting). > > I am using qGIS r12508M, loaded just a few hours ago. Running under Windows > XP svc Pk 3. > Install was via OSGeo4W. > > Fred LaPlante > ___ > 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
Re: [Qgis-user] Symbology-ng: field-based rotation for symbols?
On Mon, Dec 14, 2009 at 9:20 AM, wrote: > > Hi, > > I discovered that field-based rotation for symbols in symbology-ng is not > supported. Is it true? That's true. Hopefully it will get implemented in some future version. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Labelling
Hi Piotr On Thu, Nov 19, 2009 at 4:40 PM, Piotr Pachół wrote: > Hello, > I've just had for the first time possibility to see how labelling plugin > works (Qgis 1.4 r.12167). > Martin - I must say it was fantastic job. > > Nevertheless I would like to add some sugestions: > 1. Labels without line objects - when we have a line layer with > classificated symbology > and we delete some classes we still can see labels for line objects from > deleted class value. Thanks for pointing out, that should be fixed in r12206. > 2. Labelling points with angle defined in one of fields – it is partially > made because we can't change: > a) angle units (degrees, grads, radians), > b) angle rotation style: > - geographic (zero north, clockwise direction) which is necessary for me, > - arithmetic (zero east, anticlockwise direction) which is used in Qgis, > > May be defining angle units in whole project of Qgis is necessary? I think it's sufficient to use only degrees within user interface as it's most common unit (ok, some might want use grads). But for data-driven rotation of labels it could be considered to give the user chance to set both units type and rotation style. > 3. What about conflict detection between labels on different layers? The conflict resolution is done for all layers at once. In the labeling settings dialog you can also set priority for each layer. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Labelling
On Fri, Nov 20, 2009 at 4:10 PM, Piotr Pachół wrote: > Hello Martin, > > 1. What I mean about angle units and angle rotation style: > Yes, I would like that user may choose between units (deegrees or grads) > and between rotation styles (geographic and arithmetic). > Do you plan to add such a possibility ? Yes, it's planned, but I don't know when that will happen. > 2. Now there are two possibilities of creation labels: > - first standard: Layer properties ->labels, > - second with your plugin. > When I use both types of labelling each label is generated twice. > Do you plan to integrate both types of labeling ? > If the integration not be soon may be it would be good idea to add some > check box. > When the box is on - qgis uses labelling plugin, when off qgis uses > standard labelling. Yes I plan to move the code from a plugin to core library and give the user possibility to choose which implementation to use. It would be nice if I managed to do it until the release of qgis 1.4, but I'm not sure I'll have enough time for that. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Scale dependent rendering connected with attributes of field
2009/11/11 Borys Jurgiel : > Dnia środa, 11 listopada 2009 o 16:02:38 Piotr Pachół napisał(a): >> Hello, >> I would like to ask if in Qgis there is possibility to use scale >> dependent rendering not only connected with whole layer but also with >> attributes in particular field. >> For instance I have one layer of roads classificated in one of field as >> state roads, provincial roads etc. ... >> Now I would like to use different scale dependent rendering for state >> roads, provincial roads etc. >> Is it possible ? >> >> Piotr > > Unfortunately, it isn't. You need to add a separate layer for every road type > and scale range. > > Martin, do you plan to implement such functionality later in the NG Symbology? > It would be great :) I've been thinking about such renderer - it should be fairly easy to implement. It would be actually a "proxy" renderer: for each scale ranges it could contain a renderer (single / categorized / graduated symbol or some other). But that could happen maybe for 1.5 or beyond :-) Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] Some feedback on the hackfest (Vienna 2009)
On Tue, Nov 10, 2009 at 12:32 AM, Mailing Lists wrote: > Dear all > > I have written up some thoughts on the hackfest on my blog here: > > http://linfiniti.com/2009/11/report-back-on-the-qgis-hackfest-in-vienna-november-2009/ > > Hopefully other attendees will chime in here with more thoughts on the event. Nice report Tim, thanks! It was a really nice meeting, hope to meet you all soon! Just to keep you informed, I plan to merge symbology-ng branch sometime during the weekend... (no time before) Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] remove menu item from QGIS menu bar - python plugin
Hi, it's possible to get a reference to any menu (QMenu instance) from QgisInterface. Then it's possible to get list of actions calling menu's actions() method and finally to call removeAction() method. See QWidget reference for details. Martin On Sun, Nov 8, 2009 at 4:29 PM, Ivan Mincik wrote: > Hi list, > is there any possibility of removing item from QGIS menu bar using Python ? > For example to remove some item from 'Help'. > > Looking to QGIS class reference does not give me simple ideas. > > Thanks > Ivan > ___ > 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
Re: [Qgis-user] label placement
On Thu, Oct 15, 2009 at 9:08 AM, Lionel Roubeyrie wrote: > Hi all, > just to know if the label placement code from the GSoC will be integrated in > the next QGIS release or if it's possible to activate it from the SVN code > (and how)? Hi, the code from my GSoC project (with some more code regarding symbology [1]) can be found in SVN in this branch: http://svn.osgeo.org/qgis/branches/symbology-ng-branch/ I'm back from my vacation so hopefully there will be some progress in the following weeks. Regards Martin [1] http://www.qgis.org/wiki/Symbology_RFC ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] label placement
2009/8/10 Martin Dobias : > > Hm is that wiki running from a backup? I swear I put report for > week #10 on it some time ago... Just read Otto's announcement from the other thread - yes the wiki is run from a backup :-) Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] label placement
On Mon, Aug 10, 2009 at 10:09 AM, Borys Jurgiel wrote: > Dnia poniedziałek, 10 sierpnia 2009 o 09:33:25 Lionel Roubeyrie napisał(a): >> Hi all, >> is it possible to have some news about the label placement project at GSoC? >> When can we expect it? >> Thanks > > My favourite blog ;-) > http://www.qgis.org/wiki/Label_Placement_GSoC_2009 Hm is that wiki running from a backup? I swear I put report for week #10 on it some time ago... For everyone who would like to follow the GSoC at osgeo more closely, there's a mailing list with weekly reports [1]. [1] http://lists.osgeo.org/mailman/listinfo/soc Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Qgis segfaults on Kubuntu
On Sat, Aug 8, 2009 at 9:40 PM, Albin Blaschka wrote: > > Hello, > > I can reproduce the problem: Same here: QGIS starts, the splash screen > appears until loading python-plugins and then segfaulting, nothing is > written to the console. The package uim-qt3 is *not* installed... > > System: Kubuntu Jaunty Jackalope, KDE 4.3 > Python 2.6.2 I've run probably into the same segfault on kubuntu after upgrade to kde 4.3 too. The problem lies in some incompatibility between different versions of sip/PyQt4: I suppose the default jaunty PyQt version is something like 4.4.x, while kde 4.3 installs version 4.5.2. When I recompiled qgis python bindings with this newer version, the segfault was gone. If you don't want to compile QGIS on your own, probably you'll have to either downgrade python-qt4 (and friends) back to original version or uninstall python support in qgis. Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] postgis manager plugin feedback
Hi Ricardo On Mon, Jul 20, 2009 at 4:28 PM, Ricardo Filipe Soares Garcia da wrote: > Hello list and Martin > I've been trying out the postGIS Manager plugin. It's great! I would > like to leave some of the problems I found/wishlist for improvement. > > PROBLEMS: > > - When I import a shapefile to my existing postgisDB the GUI doesn't > refresh the table list. I have to close the plugin and reopen it to > see my newly imported table. I know, I should fix it :-) As a workaround, you don't have to close and reopen the whole plugin, just click again on the current database connection in menu, it will reconnect and refresh the list. > - I am not able to run some SQL commands in the SQL window. For example: > > CREATE TABLE formacoesmeridional AS > SELECT ST_INTERSECTION(f.the_geom, b.the_geom) as the_geom, > f.codlito, f.comp_lit, f.per_geol, f.designa, f.pgid > FROM formacoeslitologicas f, bacias b > WHERE ST_INTERSECTS(f.the_geom, b.the_geom) AND b.gid=1 > > this won't work. Why is that? It also doesn't give me any error or > warning as to why it failed. I'm pretty sure the SQL code is correct > because I can run this query just fine when using pgAdminIII. The problem is that the executed commands are not automatically committed. So if you add a commit command, it will do what you need. But probably it would be good to do commits automatically... > WISHLIST: > > - It would be very nice if there was a button to carry out the task of > manually updating the geometry_columns table. As you can see by my SQL > example, I was creating some a new table as a result of a spatial > intersection between existing tables. This kind of operation forces me > to manually update the geometry_columns table with the info from my > new table. If this could be done with a button press in the postGIS > Manager it would be sweet. I have this feature in my mind for some time. So it will likely be implemented someday :-) > - It would be great if you and the author of the pgQuery plugin would > join both plugins into one. The pgQuery plugin has some nice > functionality like the ability to perform queries using multiple > tables, a nice pane for postgis functions, the ability to save query > templates for common tasks and also the aility to load the results of > a query directly to the Qgis canvas. I see that there currently several nice plugins that focus on different aspects of PostGIS databases. Of course it would be great to have all such functionality in one plugin. However joining several pieces of software is often harder than it seems to users. I would welcome patches for postgis manager from authors of other plugins that would incorporate the functionality they've developed. But I don't have that much time to step up and start integrating others' work to postgis manager myself. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-developer] [Fwd: Re: [Qgis-user] Poll on website]
On Sun, Jul 19, 2009 at 8:20 PM, Mailing Lists wrote: > - Promote the 1.x releases on the download pages etc > - Keep the 1.0.x description and down load page there (in a less > prominant position). > - Do occasional 1.0.x releases - I will backport any commits I can to > the 1.0.x branch and make occasional releases > - Release 1.2 with the current feature set as Marco and others have suggested > - Incorporate Martins NG and Labelling stuff into the future 1.3 release > - Lets work to get some kind of proper metrics in place - an opt in > first-run wizard that is invoked each time a user uses QGIS + unique > version that pings a server with OS + Version. I will do the server > side stuff if someone else can pitch in with the QGIS part. Agreed... +1 for me Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] to Mac OSX users
Hi William On Wed, Jul 15, 2009 at 4:07 PM, William Kyngesburye wrote: > I missed these because I don't check Trac tickets... It would be helpful if > they were posted to the dev list (like GRASS does) or there was a new ticket > list (like the commit list). there's a dedicated list: http://lists.osgeo.org/mailman/listinfo/qgis-trac Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: Re: [Qgis-developer] PostGIS manager v0.5
On Thu, Jul 9, 2009 at 8:59 AM, Düster Horst wrote: > Martin > I found out further issues related with OID Indexes (1) and table versioning > (2) and one enhancement (3). > 1. > When I select a table with OID index, the meta data Indexes part shows: > Name Column(s) > afu_prog05_oid_idx ??? (#-2) > afu_prog05_idx wkb_geometry Ah, tables with oids, that's something I've completely forgotten... Anyway, isn't it discouraged to use oids for regular tables? > 2. > * The schema select box content should be sortet. > * The geometry index and all other indexes of the versionized table should > be a patial index with the constaint "where time_end = NULL ". With a > partial index you will have huge performance advantages. With the time the > amount of archived or historized records will grow up. P.e. one table of our > cadastral data contains more than 1 Mio records, but 70 of them are not > in production state (end_time <> NULL). With the partial index these records > don't exists for Postgres, as the result you do not have any performance > problems with your production data. That's why I'm not adding any indexes to the tables with versioning, because I wasn't sure how to do it correctly. I was thinking about using multicolumn indexes - e.g. geometry+endtime, that would probably do the right thing too. But the partial indexes seem to be more appropriate. Thanks for sharing. > 3. I would be nice to add a selected table to Qgis mapcanvas. Already on my TODO :-) Bye Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] PostGIS manager v0.5
On Thu, Jul 9, 2009 at 8:02 AM, Micha Silver wrote: > Hello Martin: > > A few more points you might take into consideration: > 1- The "VACUUM ANALYZE" warning appears also for views. That's probably > unnecessary. That's right... > 2- To get the plugin working on windows, the psycopg2 library must be > installed. That's available when using the OSGeo4W installer, thru the > "Advanced" option. It's worth mentioning this (somewhere...). It could be added somewhere to the description. Hopefully at some point in future there will be improved metadata for plugins that will state also the dependencies. > 3- Is it possible to maintain the state of the Table of Contents list of > schemas and tables from session to session? It's a minor point, but with a > long list of tables, this might add a bit to usability. That's an interesting idea, but how to keep the database view up-to-date? Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Re: [Qgis-developer] PostGIS manager v0.5
On Wed, Jul 8, 2009 at 3:15 PM, Andreas Neumann wrote: > Hi Martin, > > Thank you for this very useful plugin. It feels to me a bit like > ArcCatalogue in the ESRI world. > > I have two smaller request if it would be possible: > > For the map preview - could you re-use the QGIS-settings from the options > dialogue regarding: > > a) mouse wheel behavior/zooming and > b) antialiasing setting > > I don't know if a python plugin can read out these settings? It would be > cool if the user would "feel at home" by getting the same as setting as in > regular QGIS. Hi Andreas, that's a good idea, implemented in v0.5.2. Antialiased map looks much better :) Regards Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
