[Qgis-user] Display label only selected features in QGIS 2.0
Hi QGIS User How to display label only selected features in QGIS 2.0 thank you -- Chingchai Humhong (chingchai by famous) Regional Center of Geo-Informatics and Space Technology, Lower Northern Region Naresuan University Phitsanulok 65000 Mobile: 08-4624-6278 Blog: http://nu-gis.blogspot.com Website: http://www.map.nu.ac.th http://map.nu.ac.th/ Website: http://www.cgistln.nu.ac.th http://www.cgistln.nu.ac.th/web/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] HelpŠ..is not a supported raster data source...
Try this link http://www.faunalia.com/content/adding-ecw-support-quantum-gis Also try to surf for answers at http://osgeo-org.1560.x6.nabble.com/ and choose QGIS-User. All QA are listed at this page. Regards Lene Fischer Fra: qgis-user-boun...@lists.osgeo.org [qgis-user-boun...@lists.osgeo.org] på vegne af Stephen Routledge [r...@netc.net.au] Sendt: 14. oktober 2013 02:15 Til: qgis-user@lists.osgeo.org Emne: [Qgis-user] HelpŠ..is not a supported raster data source... Dear Users, I am not too sure of your protocols and have tried to get some help with this error message before… F:/My Documents - C Drive/Norman Wettanhall Foundation/FGIS/Maps/albury8225_2009dec30_air_vis_50cm_mga55.ecw is not a supported raster data source This file I am trying to load has always loaded in Lisboa but not in Dufour… Non of my ecw files will load. Can someone please help me with a simple answer to the problem? Many thanks in anticipation of getting this software up and working. Kind regards Stephen Routledge ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Searching for help in previous questions
Hello All, Using this mailing list for a long time, I sometimes need to search for previous questions and answers before writing myself. But where to find a list it is here http://osgeo-org.1560.x6.nabble.com/ Choose QUANTUM GIS QUANTUM user If you search - remember to narrow the search for 'QUANTUM GIS user'. There is also an advanced search form. Good luck for everyone to find 'gold'. And a suggestion - Could this 'secret' link be added to http://qgis.org/en/site/forusers/support.html Kind regards Lene Fischer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Searching for help in previous questions
On 14-10-13 08:13, Lene Fischer wrote: Hello All, Using this mailing list for a long time, I sometimes need to search for previous questions and answers before writing myself. But where to find a list it is here http://osgeo-org.1560.x6.nabble.com/ Choose QUANTUM GIS QUANTUM user If you search - remember to narrow the search for 'QUANTUM GIS user'. There is also an advanced search form. Good luck for everyone to find 'gold'. And a suggestion - Could this 'secret' link be added to http://qgis.org/en/site/forusers/support.html Hi Lene, thanks for the suggestion. I will add it to the page you mentioned. Regards, Richard ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] labels: avoid duplicated labels
Goyo, while I enjoy working with postgis a lot, the reality is I cannot expect my users to hack a sql view each time they need to label a map. It is not feasible to anticipate all situations and just create new items in my database to handle each one. It's difficult enough to manage the data as it is. I will just get a call or email asking how can the multiple labels be avoided, and there is no easy answer for that. The answer I've come up with is to select the features I want to label, and create a new layer in qgis with the corresponding query, remove the symbol and label it - much like the old label type layers in MapServer. Thanks, Duarte -Mensagem original- De: Goyo [mailto:goyod...@gmail.com] Enviada: quinta-feira, 3 de Outubro de 2013 20:19 Para: Duarte Carreira Cc: Qgis (qgis-user@lists.osgeo.org) Assunto: Re: [Qgis-user] labels: avoid duplicated labels 2013/10/3 Duarte Carreira dcarre...@edia.pt: Thanks for your suggestion. But this is not feasible. I cannot keep creating new spatial tables for cartographic purposes, I just can't pay the maintenance cost of that (updating). I was thinking of shapefiles and the like. With a spatial dabase it should be even easier. You can have a second geometry field and mantain it using a trigger or a script running in the background or at night or use a spatial view or just use multipolygons instead of (not in addition to) single polygons. The best solution depends on your typical workflow, the size of your data, etc. It also depends on which database engine you use. I have done this kind of things with spatialite and I think they can be done with postgis in a similar way. In particular I've found spatial views are a very powerful tool for cartography. I often want to show multipoint features as polygons (buffer(convexhull(geom), n)) or single points (centroid(buffer(convexhull(geom), n))) and I can do it even on the fly using the DB manager or the fast SQL layer plugin. Goyo It is awkward to me missing this option... Duarte -Mensagem original- De: Goyo [mailto:goyod...@gmail.com] Enviada: quinta-feira, 3 de Outubro de 2013 16:57 Para: Duarte Carreira Cc: Qgis (qgis-user@lists.osgeo.org) Assunto: Re: [Qgis-user] labels: avoid duplicated labels 2013/10/3 Duarte Carreira dcarre...@edia.pt Hi there. Is there any option to avoid duplication of labels when several polygons have the same label? Convert your polygons to multipoligons, grouping by the field shown in the label. Goyo ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] PyQGIS book in the works? Easier to understand online API Documentation?
David You wrote (You) just absolutely have to make user-friendly documentation about your product, especially the api you keep talking about. I have been on the mailing lists of numerous open source projects over the years, and someone always raises this. Why? Well, its true. However, asking and getting are two different things. A commercial company will just hire someone and pay them. A big company (E$RI) will hire someone really good and pay them accordingly. An open source project cannot do so. It only happens if there is someone (or ones) who is (a) passionate about documentation, (b) knows the system very well and (c) has the spare time to write (and writing is very time consuming). Sadly, this does not always happen. In an open source project the primary goal is to solve Real Problems with Real Code; and that goal attracts programmers - who care about good code and not user-friendly documentation - and not so much documenters. Not wanting to be negative - just hoping to guide your expectations! Derek PS If you have the time, there is an interesting article on the differences between Linux and Windows (http://linux.oneandoneis2.org/LNW.htm); section Subproblem #3a: There is a culture is of relevance here, as is Problem #5: The myth of user-friendly. My favourite quote from that article is Linux is not interested in market share. Linux does not have customers. Linux does not have shareholders, or a responsibility to the bottom line. Linux was not created to make money. Linux does not have the goal of being the most popular and widespread OS on the planet. My personal view is that QGIS is in a very similar position... Chrest, David 10/12/13 4:19 AM Thanks so much for the info Richard. Gary's PyQGIS Programmers Guide looks like just what I was talking about. Glad to see this book will soon (hopefully) come out. Should be a great and fill a much needed void. No, not being paid by ESRI :-) I just know that the first thing people look for is god documentation about software. That alone can be the deciding factor before somebody looses interest or finds it too troublesome to work with. Make things so much easier to figure than going on a hunt every time you want to do something. Plenty of books out there on other free/OS software, especially by PACKT Publishing, would be great to see some more QGIS/PyQGIS materials out there (at least 250 pages, not just a white paper in disguise as a slender book.) OK, so the big selling point I keep reading is that one can use python to write scripts, automate processes, write plugins, even a nice new python console, but there is no api docs for python? That seems very strange! Again, looks like Gary's upcoming book may fill the void. The Introduction in the PyQGIS Cookbook for 2.0 states: There is a complete QGIS API reference that documents the classes from the QGIS libraries. Pythonic QGIS API is nearly identical to the API in C++. So I click the link but nothing tells me if am looking at the python api or the cpp api. Users will not care about the cpp api, we just want to know how to do all this cool python stuff. If it becomes a hassle or takes to long to figure out (people have clients, budgets, deadlines), then they will get turned off and go back to ArcGIS where everything is explained plainly nice and neatly. ESRI made a HUGE, monumental mistake when it first released ArcObjects with miniscule documentation. Loads of people were fuming. Took them 10 years to get things right again and thank goodness they went on the python path. A very talented programmer I work with here told me that it is well known programmers don't make the best writers. Just absolutely have to make user-friendly documentation about your product, especially the api you keep talking about. David Chrest -Original Message- From: Richard Duivenvoorde [mailto:rdmaili...@duif.net] Sent: Friday, October 11, 2013 5:00 PM To: Chrest, David; qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] PyQGIS book in the works? Easier to understand online API Documentation? On 11-10-13 22:34, Chrest, David wrote: Are there plans for a detailed, written in a you-don't-have-to-be an-experienced-programmer kind of way book that helps explain PyQGIS and how to use it? I know Gary has plans: http://pyqgis.com/book/availability/ Python Scripting for ArcGIS by .. Programming ArcGIS 10.1 with Python .. You are not being paid by them or esri are you ;-) friendly. Looks like it is written for someone who knows C++. See http://qgis.org/api/classQgisInterface.html. What in world are Public You are actually pointing to cpp API interface. Currently we do not have separate api docs for python. I know Victor has been busy updating the Python cookbook: http://www.qgis.org/en/docs/pyqgis_developer_cookbook/index.html That should be more informative for beginners? BUT I also have to point you to the fact that QGIS is a community/volunteer driven project,
Re: [Qgis-user] HelpŠ..is not a supported raster data source...
On 14-10-13 08:02, Lene Fischer wrote: Try this link http://www.faunalia.com/content/adding-ecw-support-quantum-gis Hi Stephen, I did a fresh (quick)-install of QGIS via the osgeo4w-64bit installer on a Windows7 machine last week, and was confronted with a dialog (Erdas?), and after that QGIS could just load ECW... @jurgen can you confirm this? Is this only with 64bit installer (as I found in the mailinglist somewhere)? The (ever changing status of ecw) would be a candidate for the FAQ in the website I think... :-) Regards, Richard Duivenvoorde ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] HelpŠ..is not a supported raster data source...
Yes currently the 64bit installer contians ECW but the 32bit doesn't. Thee are using different GDAL versions. - nathan On 14/10/2013 8:40 PM, Richard Duivenvoorde rdmaili...@duif.net wrote: On 14-10-13 08:02, Lene Fischer wrote: Try this link http://www.faunalia.com/content/adding-ecw-support-quantum-gis Hi Stephen, I did a fresh (quick)-install of QGIS via the osgeo4w-64bit installer on a Windows7 machine last week, and was confronted with a dialog (Erdas?), and after that QGIS could just load ECW... @jurgen can you confirm this? Is this only with 64bit installer (as I found in the mailinglist somewhere)? The (ever changing status of ecw) would be a candidate for the FAQ in the website I think... :-) Regards, Richard Duivenvoorde ___ 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
[Qgis-user] No ECW support in QGis 2.0
Hi, I have tried to follow direccions in http://www.faunalia.com/content/adding-ecw-support-quantum-gis in order to use ECW files in Q-GIS. I have Quantum GIS 2.0 (windows 7, 64) with the osgeo4w but I do not have the folders c:\OSGeo4W\bin and c:\OSGeo4W\bin\gdalplugins\1.9 where I could copy the files libecwj2.dll and gdal_ECW_JP2ECW.dll as suggested. Instead I have C:\Program Files\QGIS Dufour\bin\gdalplugins. Please, where shoud I copy these two dll files. Thank you Santiago Moreno ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] No ECW support in QGis 2.0
64bit QGIS (if you used the 64bit installer) on Windows supports ECW out of the box. You shouldn't need to install anything extra. The 32bit install currently doesn't support it and you will have to the use the method in the in the blog post. - Nathan On Mon, Oct 14, 2013 at 9:49 PM, Santiago Moreno santiago.mor...@upm.eswrote: Hi, I have tried to follow direccions in http://www.faunalia.com/** content/adding-ecw-support-**quantum-gishttp://www.faunalia.com/content/adding-ecw-support-quantum-gisin order to use ECW files in Q-GIS. I have Quantum GIS 2.0 (windows 7, 64) with the osgeo4w but I do not have the folders c:\OSGeo4W\bin and c:\OSGeo4W\bin\gdalplugins\1.9 where I could copy the files libecwj2.dll and gdal_ECW_JP2ECW.dll as suggested. Instead I have C:\Program Files\QGIS Dufour\bin\gdalplugins. Please, where shoud I copy these two dll files. Thank you Santiago Moreno __**_ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/**mailman/listinfo/qgis-userhttp://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] No ECW support in QGis 2.0
Hello Santiago, Please also note that, by default, the 64bit installer will create a OSGeo4W64 folder instead od the usual OSGeo4W one (you can choose a different name tho), so any needed hack that you find should be done there. Best regards, Alexandre Neto On Mon, Oct 14, 2013 at 12:51 PM, Nathan Woodrow madman...@gmail.comwrote: 64bit QGIS (if you used the 64bit installer) on Windows supports ECW out of the box. You shouldn't need to install anything extra. The 32bit install currently doesn't support it and you will have to the use the method in the in the blog post. - Nathan On Mon, Oct 14, 2013 at 9:49 PM, Santiago Moreno santiago.mor...@upm.eswrote: Hi, I have tried to follow direccions in http://www.faunalia.com/** content/adding-ecw-support-**quantum-gishttp://www.faunalia.com/content/adding-ecw-support-quantum-gisin order to use ECW files in Q-GIS. I have Quantum GIS 2.0 (windows 7, 64) with the osgeo4w but I do not have the folders c:\OSGeo4W\bin and c:\OSGeo4W\bin\gdalplugins\1.9 where I could copy the files libecwj2.dll and gdal_ECW_JP2ECW.dll as suggested. Instead I have C:\Program Files\QGIS Dufour\bin\gdalplugins. Please, where shoud I copy these two dll files. Thank you Santiago Moreno __**_ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/**mailman/listinfo/qgis-userhttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ 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
[Qgis-user] EPSG for Cape Verde
Hello all, I will create a QGis project for the Cape Verde archipelago. The EPSG code used by the capeverdian national authorities is the 4826. However, in QGis this EPSG is not in the CRS list. Can somebody help me to solve this problem? Many thanks in advance, Nuno Loureiro ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Arc Map to QGis
Hello all, I received several rasters. Each one have five files with the following formats: *.aux *.rrd *.tfwx *.tiff.aux.xmlx *.tif.vat.dbt What kind of tasks are needed to convert these files before to open them in QGis? Many thanks in advance for any help. Kind regards, Nuno ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] No ECW support in QGis 2.0
Thank you Nathan and Alexandre. When installing 64 bit QGIS the OSGeo4W icon was installed on the desktop, however neither a OSGeo4W nor a OSGeo4W64 forder was created. When trying to load my ECW file I am getting the message: xxx.ecw is not an accepted raster data source. Regards, Santiago At 13:58 14/10/2013, Alexandre Neto wrote: Hello Santiago, Please also note that, by default, the 64bit installer will create a OSGeo4W64 folder instead od the usual OSGeo4W one (you can choose a different name tho), so any needed hack that you find should be done there. Best regards, Alexandre Neto On Mon, Oct 14, 2013 at 12:51 PM, Nathan Woodrow mailto:madman...@gmail.commadman...@gmail.com wrote: 64bit QGIS (if you used the 64bit installer) on Windows supports ECW out of the box. You shouldn't need to install anything extra. The 32bit install currently doesn't support it and you will have to the use the method in the in the blog post. - Nathan On Mon, Oct 14, 2013 at 9:49 PM, Santiago Moreno mailto:santiago.mor...@upm.essantiago.mor...@upm.es wrote: Hi, I have tried to follow direccions in http://www.faunalia.com/content/adding-ecw-support-quantum-gishttp://www.faunalia.com/content/adding-ecw-support-quantum-gis in order to use ECW files in Q-GIS. I have Quantum GIS 2.0 (windows 7, 64) with the osgeo4w but I do not have the folders c:\OSGeo4W\bin and c:\OSGeo4W\bin\gdalplugins\1.9 where I could copy the files libecwj2.dll and gdal_ECW_JP2ECW.dll as suggested. Instead I have C:\Program Files\QGIS Dufour\bin\gdalplugins. Please, where shoud I copy these two dll files. Thank you Santiago Moreno ___ Qgis-user mailing list mailto:Qgis-user@lists.osgeo.orgQgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list mailto:Qgis-user@lists.osgeo.orgQgis-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
[Qgis-user] Android phone GPS to QGIS or BeeGIS
Hi, I am trying to connect the GPS of my Samsung S3 (Android) to my laptop, so that QGis (better still, beegis) can use the NMEA stream, but no luck so far. I have tried both BlueNMEA and BluetoothGPS but no luck yet. The laptop shows the bluetooth connection to my S3 as com8, and I have tried with Allow Mock Locations both on and off in the S3. Has anyone done this successfully? Perhaps preferably via WiFi instead of Bluetooth? TIA, Zoltan -- === Zoltan Szecsei PrGISc [PGP0031] Geograph (Pty) Ltd. P.O. Box 7, Muizenberg 7950, South Africa. 65 Main Road, Muizenberg 7945 Western Cape, South Africa. 34° 6'16.35S 18°28'5.62E Tel: +27-21-7884897 Mobile: +27-83-6004028 Fax: +27-86-6115323www.geograph.co.za === ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Arc Map to QGis
Hello Nuno, It seems to me that most of those files are auxiliary files for ArcGIS only. Except for the tfwx (that has the georeference info for your raster), you wont need them in QGIS. Do you have a TIF file also? You should. And if so, you can open it directly on QGIS. Best Regards, Alexandre Neto On Mon, Oct 14, 2013 at 1:28 PM, Nuno de Santos Loureiro nlou...@ualg.ptwrote: Hello all, I received several rasters. Each one have five files with the following formats: *.aux *.rrd *.tfwx *.tiff.aux.xmlx *.tif.vat.dbt What kind of tasks are needed to convert these files before to open them in QGis? Many thanks in advance for any help. Kind regards, Nuno ___ 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
[Qgis-user] EPSG for Cape Verde
Hello all, I will create a QGis project for the Cape Verde archipelago. The EPSG code used by the capeverdian national authorities is the 4826. However, in QGis this EPSG is not in the CRS list. Can somebody help me to solve this problem? Many thanks in advance, Nuno -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x- Nuno de Santos Loureiro (PhD) Centro de Biologia Ambiental - ADC Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8 Universidade do Algarve Campus de Gambelas 8005-139 FARO(Portugal) -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x- This message was sent using IMP, the Internet Messaging Program. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Arc Map to QGis
Hello all, I received several rasters. Each one have five files with the following formats: *.aux *.rrd *.tfwx *.tiff.aux.xmlx *.tif.vat.dbt What kind of tasks are needed to convert these files before to open them in QGis? Many thanks in advance for any help. Kind regards, Nuno -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x- Nuno de Santos Loureiro (PhD) Centro de Biologia Ambiental - ADC Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8 Universidade do Algarve Campus de Gambelas 8005-139 FARO(Portugal) -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x- This message was sent using IMP, the Internet Messaging Program. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] No ECW support in QGis 2.0
Have Yu used OSGeo4W Network Installer (64 bit) or QGIS Standalone Installer Version 2.0.1 (64 bit). OSGeo4W Network Installer is the wriht one. Karlis Santiago Moreno wrote: Thank you Nathan and Alexandre. When installing 64 bit QGIS the OSGeo4W icon was installed on the desktop, however neither a OSGeo4W nor a OSGeo4W64 forder was created. .. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] labels: avoid duplicated labels
I realize now that different maps will use different fields/expressions for labelling so requiring different queries. Maybe this feature can be added to the labelling engine but it would take time. Goyo 2013/10/14 Duarte Carreira dcarre...@edia.pt: Goyo, while I enjoy working with postgis a lot, the reality is I cannot expect my users to hack a sql view each time they need to label a map. It is not feasible to anticipate all situations and just create new items in my database to handle each one. It's difficult enough to manage the data as it is. I will just get a call or email asking how can the multiple labels be avoided, and there is no easy answer for that. The answer I've come up with is to select the features I want to label, and create a new layer in qgis with the corresponding query, remove the symbol and label it - much like the old label type layers in MapServer. Thanks, Duarte -Mensagem original- De: Goyo [mailto:goyod...@gmail.com] Enviada: quinta-feira, 3 de Outubro de 2013 20:19 Para: Duarte Carreira Cc: Qgis (qgis-user@lists.osgeo.org) Assunto: Re: [Qgis-user] labels: avoid duplicated labels 2013/10/3 Duarte Carreira dcarre...@edia.pt: Thanks for your suggestion. But this is not feasible. I cannot keep creating new spatial tables for cartographic purposes, I just can't pay the maintenance cost of that (updating). I was thinking of shapefiles and the like. With a spatial dabase it should be even easier. You can have a second geometry field and mantain it using a trigger or a script running in the background or at night or use a spatial view or just use multipolygons instead of (not in addition to) single polygons. The best solution depends on your typical workflow, the size of your data, etc. It also depends on which database engine you use. I have done this kind of things with spatialite and I think they can be done with postgis in a similar way. In particular I've found spatial views are a very powerful tool for cartography. I often want to show multipoint features as polygons (buffer(convexhull(geom), n)) or single points (centroid(buffer(convexhull(geom), n))) and I can do it even on the fly using the DB manager or the fast SQL layer plugin. Goyo It is awkward to me missing this option... Duarte -Mensagem original- De: Goyo [mailto:goyod...@gmail.com] Enviada: quinta-feira, 3 de Outubro de 2013 16:57 Para: Duarte Carreira Cc: Qgis (qgis-user@lists.osgeo.org) Assunto: Re: [Qgis-user] labels: avoid duplicated labels 2013/10/3 Duarte Carreira dcarre...@edia.pt Hi there. Is there any option to avoid duplication of labels when several polygons have the same label? Convert your polygons to multipoligons, grouping by the field shown in the label. Goyo ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Display label only selected features in QGIS 2.0
2013/10/14 chingchai humhong chingcha...@gmail.com: Hi QGIS User How to display label only selected features in QGIS 2.0 That is not possible AFAIK. As a workaround you may save the selection as a new layer, label it and remove the symbol. There might be better ways depending on selection criteria, type of storage, etc. Goyo ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Display label only selected features in QGIS 2.0
Hi, On Mon, Oct 14, 2013 at 12:01 AM, chingchai humhong chingcha...@gmail.comwrote: Hi QGIS User How to display label only selected features in QGIS 2.0 There is no current function of choosing to show labels (in a temporal fashion) for the current selection. However, there are new tools in QGIS 2.0 to help show only the labels you want. Depending upon your desired workflow, consider using 'Show Label' data defined option (under Vector Layer Properties Dialog - Labels - Rendering section). You can map an attribute field for your layer, or define an expression. [Show Label data definition description] Expected input:bool [1=True|0=False] Valid input types: string, int, double If not using an expression, but instead mapping an attribute field, you can then either edit the attribute table accordingly (e.g. create a selection and update existing field values using the Attribute Table Editor), use the Show/Hide Label tool, or toggle the check box in the Change Label Properties dialog. Manipulating the attribute table allows for different expressions to be applied, while the Show/Hide Label allows you to interactively work with the labels on the map canvas: [Show/Hide Labels tool tip] Click or marquee on feature to show label Shift+click or marquee on label to hide it Acts on currently active editable layer Regards, Larry Shaffer Dakota Cartography Black Hills, South Dakota thank you -- Chingchai Humhong (chingchai by famous) Regional Center of Geo-Informatics and Space Technology, Lower Northern Region Naresuan University Phitsanulok 65000 Mobile: 08-4624-6278 Blog: http://nu-gis.blogspot.com Website: http://www.map.nu.ac.th http://map.nu.ac.th/ Website: http://www.cgistln.nu.ac.th http://www.cgistln.nu.ac.th/web/ ___ 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] Display label only selected features in QGIS 2.0
Hi Larry Shaffer Thank you so much for the great suggestions. Regards, 2013/10/15 Larry Shaffer lar...@dakotacarto.com Hi, On Mon, Oct 14, 2013 at 12:01 AM, chingchai humhong chingcha...@gmail.com wrote: Hi QGIS User How to display label only selected features in QGIS 2.0 There is no current function of choosing to show labels (in a temporal fashion) for the current selection. However, there are new tools in QGIS 2.0 to help show only the labels you want. Depending upon your desired workflow, consider using 'Show Label' data defined option (under Vector Layer Properties Dialog - Labels - Rendering section). You can map an attribute field for your layer, or define an expression. [Show Label data definition description] Expected input:bool [1=True|0=False] Valid input types: string, int, double If not using an expression, but instead mapping an attribute field, you can then either edit the attribute table accordingly (e.g. create a selection and update existing field values using the Attribute Table Editor), use the Show/Hide Label tool, or toggle the check box in the Change Label Properties dialog. Manipulating the attribute table allows for different expressions to be applied, while the Show/Hide Label allows you to interactively work with the labels on the map canvas: [Show/Hide Labels tool tip] Click or marquee on feature to show label Shift+click or marquee on label to hide it Acts on currently active editable layer Regards, Larry Shaffer Dakota Cartography Black Hills, South Dakota thank you -- Chingchai Humhong (chingchai by famous) Regional Center of Geo-Informatics and Space Technology, Lower Northern Region Naresuan University Phitsanulok 65000 Mobile: 08-4624-6278 Blog: http://nu-gis.blogspot.com Website: http://www.map.nu.ac.th http://map.nu.ac.th/ Website: http://www.cgistln.nu.ac.th http://www.cgistln.nu.ac.th/web/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user -- Chingchai Humhong (chingchai by famous) Regional Center of Geo-Informatics and Space Technology, Lower Northern Region Naresuan University Phitsanulok 65000 Mobile: 08-4624-6278 Blog: http://nu-gis.blogspot.com Website: http://www.map.nu.ac.th http://map.nu.ac.th/ Website: http://www.cgistln.nu.ac.th http://www.cgistln.nu.ac.th/web/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Finding 'lost' plugins?
Johanna,
You still having this problem? I noticed the plugin repository was down for
a short time on Sunday night as my guess it was being worked on. Wonder if
this had anything to do with your problem?
For Windows Users, custom downloaded plugins now normally live in:
C:\Users\{username}\.qgis2\python\plugins
fTools and Gdal Tools should be in:
C:\{program files}\QGIS Dufour\apps\qgis\python\plugins
In QGIS 2.0 the Sextante is now the Processing toolbox and built in.
Matt Robinson.
Date: Mon, 14 Oct 2013 16:28:44 +1100
From: johanna.bot...@griffith.nsw.gov.au
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] Finding 'lost' plugins?
Message-ID:
ofc647470d.2878c06e-onca257c04.001e0403-ca257c04.001e1...@griffith.nsw.gov.au
Content-Type: text/plain; charset=US-ASCII
My installation of QGIS 2.0 has
'http://plugins.qgis.org/plugins/plugins.xml' as the location setting for
the plug-in repository, but not all the plugins I want are visible to me. I
am missing some basic ones like GRASS, fTools, Gdal Tools and Sextante.
I'm on Windows XP.
Where should that location setting be pointing? Or why can't I see the
plugins that I'm looking for?
___
Johanna Botman
GIS / Assets Officer
Griffith City Council
Ph: 02 6962 8168
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Re: [Qgis-user] Arc Map to QGis
I think none, just open the raster dialogue, click on the tiff file QGIS will display it, in the correct place on the map - providing you set it to the correct CRS. If you ( QGIS) don't know what this is, you may be able to find out using gdalinfo. One caveat is that a tiff can be a coverage or an image, and you may need to tell QGIS to use pseudocolor to plot it rather than just plot it natively. Brent Wood From: Nuno de Santos Loureiro nlou...@ualg.pt To: qgis-user@lists.osgeo.org Sent: Tuesday, October 15, 2013 2:22 AM Subject: [Qgis-user] Arc Map to QGis Hello all, I received several rasters. Each one have five files with the following formats: *.aux *.rrd *.tfwx *.tiff.aux.xmlx *.tif.vat.dbt What kind of tasks are needed to convert these files before to open them in QGis? Many thanks in advance for any help. Kind regards, Nuno -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x- Nuno de Santos Loureiro (PhD) Centro de Biologia Ambiental - ADC Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8 Universidade do Algarve Campus de Gambelas 8005-139 FARO (Portugal) -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x- This message was sent using IMP, the Internet Messaging Program. ___ 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
[Qgis-user] pyqgis (beginners' question)
Hi, I'm trying to write my first plugin with pyqgis. I usually do my statistics analysis with R (or matlab), but I would like to speed up things with a custom plugin. Who knows it could be useful in the future for others. I tried R in Sextante, but I think a separate plugin would be more useful. ok, I created my plugin structure with pluginbuilder and started to customize things. To keep it simple, in my ui file, I created a qcombobox to select a layer, and a qlistwidget to select one or more than one fields. In my py file the code is something like this (most of this is adapted from other people's code :-) )... - def chooselayer1(self): self.dlg.ui.chosenlayer1.clear() for name, layer in QgsMapLayerRegistry.instance().mapLayers().iteritems(): if layer.type() == QgsMapLayer.VectorLayer: self.dlg.ui.chosenlayer1.addItem(layer.name()) self.set_select_attributes() def set_select_attributes(self): self.dlg.ui.Column.clear() if self.dlg.ui.chosenlayer1.currentText() != : layername1 = self.dlg.ui.chosenlayer1.currentText() for name, selectlayer in QgsMapLayerRegistry.instance().mapLayers().iteritems(): if selectlayer.name() == layername1: for field in selectlayer.dataProvider().fields(): self.dlg.ui.Column1.addItem(field.name()) - Question 1: I want to include a button to calculate for example relative frequencies for a field. In R I would something like: data$fx - data$x / sum(data$x) ###this would add a column to object data In pyqgis, I would need to get for example the selected field. Would it be something like: selectlayer.pendingFields() / sum of x which I have no idea how to calculate. Question 2: create a button to sum a selection of fields: again, in R: data$s - data$var1 + data$var2. I know this are very beginners' questions. I've been studying the material in pyqgis cookbook and qgis api. It's very useful, yet I'm still struggling. Another detail which makes it much harder for beginners are the changes in api 2.0. For all beginners out there it makes it quite hard to google for help. But I guess there's no way around it. Thank you for your help, Aline ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS Harlem Shake
Hi Johan, I tried log in and out, the shaking did not stop. Any more ideas? Thanks KLGan On Oct 13, 2013 6:21 PM, Johan Nilsson joni8...@gmail.com wrote: Did you try to log out Unity 3D and in to Unity 2D? I had some strange issues with 3D, that get solved by running 2D a while and then log in to 3D again...Othervise 2D may word. You do not need to reboot, just log out and in again. 2013/10/13 KLGan 1kl...@gmail.com I use this command in terminal to update Ubuntu. sudo add-apt-repository ppa:ubuntu-x-swat/x-updates After restart, I installed QGIS. Guess what, same problem still there, Harlem shake!... I'm forced to use QGIS in Windows now :-( What else can be done to stop the shaking. Thanks KLGan On Oct 9, 2013 1:36 AM, Alex Mandel tech_...@wildintellect.com wrote: On 10/08/2013 09:12 AM, Goyo wrote: 2013/10/8 KLGan 1kl...@gmail.com: Hi Johan Alex, Thanks for reply. Here is the hardware spec and software:- Ubuntu 13.04 Memory 2.0Gib Processor: Genuine Intel® CPU T2080 @ 1.73GHz × 2 Graphics: Intel® 945GM x86/MMX/SSE2 OS Type: 32-bit ¿Might this be a window manager issue? I remember problems with QGIS and window management in ubuntu (unity) before, like QGIS going to another virtual desktop on startup. Goyo I actually think in this case it's the Intel graphics drivers. I've talked with some other who have had similar issues but only with the splash screen (for QGIS and other graphics heavy programs). So I think the best thing to pursue is checking Ubuntu bug reports for Intel graphics driver fixes for the 945GM. There may actually be grub based flags to help. Some ideas: http://askubuntu.com/questions/101028/unity-3d-not-supported-intel-945gm-graphics-card https://bugs.launchpad.net/ubuntu/+source/linux/+bug/543265 Changing window manager might work, or just logging in with Unity 2D might even work. I know on my 12.04 machine I have to run kernel 3.5 or newer for my Intel HD4000 to work right. Thanks, Alex ___ 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] QGIS Harlem Shake
When you log out, you have pick to login to Unity 2D. Other options are to trying installing XFCE, KDE or another window manager. Another way to test, try booting OSGeoLive from a usb or DVD to see if it has the same problem. Thanks, Alex On 10/14/2013 08:43 PM, KLGan wrote: Hi Johan, I tried log in and out, the shaking did not stop. Any more ideas? Thanks KLGan On Oct 13, 2013 6:21 PM, Johan Nilsson joni8...@gmail.com wrote: Did you try to log out Unity 3D and in to Unity 2D? I had some strange issues with 3D, that get solved by running 2D a while and then log in to 3D again...Othervise 2D may word. You do not need to reboot, just log out and in again. 2013/10/13 KLGan 1kl...@gmail.com I use this command in terminal to update Ubuntu. sudo add-apt-repository ppa:ubuntu-x-swat/x-updates After restart, I installed QGIS. Guess what, same problem still there, Harlem shake!... I'm forced to use QGIS in Windows now :-( What else can be done to stop the shaking. Thanks KLGan On Oct 9, 2013 1:36 AM, Alex Mandel tech_...@wildintellect.com wrote: On 10/08/2013 09:12 AM, Goyo wrote: 2013/10/8 KLGan 1kl...@gmail.com: Hi Johan Alex, Thanks for reply. Here is the hardware spec and software:- Ubuntu 13.04 Memory 2.0Gib Processor: Genuine Intel® CPU T2080 @ 1.73GHz × 2 Graphics: Intel® 945GM x86/MMX/SSE2 OS Type: 32-bit ¿Might this be a window manager issue? I remember problems with QGIS and window management in ubuntu (unity) before, like QGIS going to another virtual desktop on startup. Goyo I actually think in this case it's the Intel graphics drivers. I've talked with some other who have had similar issues but only with the splash screen (for QGIS and other graphics heavy programs). So I think the best thing to pursue is checking Ubuntu bug reports for Intel graphics driver fixes for the 945GM. There may actually be grub based flags to help. Some ideas: http://askubuntu.com/questions/101028/unity-3d-not-supported-intel-945gm-graphics-card https://bugs.launchpad.net/ubuntu/+source/linux/+bug/543265 Changing window manager might work, or just logging in with Unity 2D might even work. I know on my 12.04 machine I have to run kernel 3.5 or newer for my Intel HD4000 to work right. Thanks, Alex ___ 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 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS Cloud
Hi, I tried upload a simple map to QGIS map just to try. But I receive this error *An error occurred: Exception in ogr2ogr * *Do you want to send the exception info to qgiscloud.com?* I did click the okay to send... :-) Thanks KLGan ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Finding 'lost' plugins?
Thanks for that info, Matt I've looked at some other installations in my office and they look right. So there's a problem with mine. I'm waiting for my IT people to get a chance to reinstall for me. I was planning to post back with the results. ___ Johanna Botman GIS / Assets Officer Griffith City Council Ph: 02 6962 8168 Please consider the environment before printing this email notice. This e-mail, together with any attachments, is for the exclusive and confidential use of the addressee(s. Confidentiality is not waived if you are not the intended recipient. Any other distribution, use of, or reproduction without prior written consent is strictly prohibited. Views expressed in this e-mail are those of the individual, except where specifically stated otherwise. If this e-mail has been sent to you in error, please delete the e-mail completely and immediately from your system. Although reasonable precautions are taken, Griffith City Council does not warrant or guarantee this message to be free of errors, interference,viruses or similar malicious code and does not accept liability for any consequences to the recipient opening or using this email or attachments. This email was scanned and cleared by NetIQ MailMarshal and Norman AV - ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Topological editing of two vector layers
Hi, Iam new to QGIS. I have two boundary vector layers, the one exist of polygons of all the provinces and the other of all the districts. The district boundaries must be aligned with the provincial boundaries. Since there is so much errors that needs alignment and rectification I was wondering if there isn't an easier way as to snap to the boundaries without to drag each vertex which is very time consuming. Is there perhaps a way where the whole identified segments/vertex of the districts can be aligned easier to the provincial boundaries. Regards Deon Pretorius ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Topological editing of two vector layers
Hello Deon You can use the function Avoid Intersection while digitizing. In this way you avoid overlap - but not gaps. Read more about this issue in the usermanual http://qgis.org/en/docs/gentle_gis_introduction/06_topology.html?highlight=snap http://qgis.org/en/docs/user_manual/working_with_vector/editing_geometry_attributes.html?highlight=snap Regards Lene Fischer Fra: qgis-user-boun...@lists.osgeo.org [qgis-user-boun...@lists.osgeo.org] på vegne af Pretorius Deon - Lieutenant Colonel [pretoriusd...@saps.gov.za] Sendt: 15. oktober 2013 06:55 Til: 'qgis-user@lists.osgeo.org' Emne: [Qgis-user] Topological editing of two vector layers Hi, Iam new to QGIS. I have two boundary vector layers, the one exist of polygons of all the provinces and the other of all the districts. The district boundaries must be aligned with the provincial boundaries. Since there is so much errors that needs alignment and rectification I was wondering if there isn’t an easier way as to snap to the boundaries without to drag each vertex which is very time consuming. Is there perhaps a way where the whole identified segments/vertex of the districts can be aligned easier to the provincial boundaries. Regards Deon Pretorius ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
