Re: [Qgis-user] QGIS Python integration
I have a similar problem to Dave, but a different error: sudo apt-get install python-qgis Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: python-qgis : Depends: libqgis1.7.5 but it is not going to be installed E: Unable to correct problems, you have held broken packages. Is there a way to resolve this without reinstalling QGIS? (I am running Ubuntu 13.10) Thanks Derek Alex Mandel tech_...@wildintellect.com 03/01/14 4:30 AM On 02/28/2014 04:19 PM, Dave Kimble wrote: Ubuntu 13.10, QGIS 2.0.1, Python 2.7.5, Python 3.3.2 QGIS Plugins Manage Plugins Settings is saying no python support detected, but I have v2.7 and v3.3 installed. QGIS is working OK, but I guess I'm missing some features. I need to clip some gigantic shapefiles down to just my locality, which I think you call geoprocessing, and it looks like ftools will do that, but it doesn't show up on the plug-in list. How do you search the archives for previously asked questions? http://osgeo-org.1560.x6.nabble.com/Quantum-GIS-f4099105.html The most likely answer is your missing the python-qgis package. FYI QGIS uses python 2.x Thanks, Alex ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS for commercial usage
And Giovanni is too polite to suggest that, if you find it useful for commercial work, a small donation to the QGIS project (http://www.qgis.org/en/site/about/sponsorship.html) to support its ongoing development would be much appreciated! G. Allegri gioha...@gmail.com 02/06/14 9:46 AM Hi,of course you can. You cannot sell it or sell software tools derived from it (e.g. plugins or customizations), but you can defnitely use it to produce your services (e.g. analysis, cartography) or use it in your commercial workflows. giovanni 2014-02-06 Stipe Vrankovic svranko...@gmail.com: Hi, I'm working as land surveyor in geomatics company and I'm wondering is it possible to legally and free use QGIS for company commercial purposes? Thank you in advance! Best regards! Stipe ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user -- Giovanni Allegri http://about.me/giovanniallegriTwitter: https://twitter.com/_giohappy_ blog: http://blog.spaziogis.it GEO+ geomatica in Italia http://bit.ly/GEOplus -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] PyQGIS: 1.8 to 2.0 upgrades?
Hi We have a third-party Python app (not a plugin) that we would like to upgrade for compatibility with 2.0. I came across this page - http://hub.qgis.org/projects/quantum-gis/wiki/API_changes_for_version_20 - which details some of the changes. However, just a quick check reveals that, where we have this import,: from qgis.core import QgsSingleSymbolRenderer from qgis.core import QgsSymbol both of these imports fails; but neither is mentioned on that page. Is there a more comprehensive guide to upgrading available? Thanks Derek -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. ___ 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] WFS access causes QGIS to crash
Thanks Ramon I tried that but, again, no information was displayed, the program simply closed. Derek Ramon Andiñach 03/01/12 10:10 AM In theory, if you run QGIS from the command line it should print debug information to the terminal. -ramon. On 01/03/2012, at 14:55, Derek Hohls wrote: Hi I am experiencing a strange problem. I can access a number of WFS services without any issues e.g. http://ogi.state.ok.us/geoserver/wfs but one service that I need is causing QGIS to crash (abruptly and without any warning). Other colleagues have no problems accessing the same service. Is there any way to see what it is that is causing the error on my machine? Thanks Derek (Running QGIS 1.7.1 under Ubuntu 10.10) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Re: New to QGIS, Best solution?
I found their conclusion somewhat disappointing. Arc/GIS was launched in 1999, and Arc/INFO (command line predecessor, equivalent to GRASS) in 1982. GRASS also launched in 1982 and ILWIS launched in 1984, so how they can say these are relatively young does not make sense. Also to keep in mind that the code-base that many of these younger packages build on is much older than their launch dates... I think the less overall GIS functionality is due to the smaller user base and number of contributers, and has nothing to do with age per se. My 2c! But I would really like to hear from others on this topic. 03/01/12 2:09 PM The paper can be accessed directly with no subscription here: http://www.geo.uzh.ch/~sstein/manuscripts/sstein_freegitools_ecoinf2009.pdf An interesting read. Highlights from the Conclusion: We report that due to the relative youth of the eight evaluated FOS GIS projects, they generally tend to have less overall GIS functionality than proprietary high-end GIS... However, on the positive side they all provide the basic GIS functions needed in LSE[Landscape Ecology]; they are easy to customise; a growing number of specialised functions and plug-ins already exists for specific LSE applications; and there is a growing community of practitioners willing to freely share their ideas, code and expertise. From: Howard Y To: qgis-user@lists.osgeo.org Date: 28/02/2012 14:51 Subject:[Qgis-user] Re: New to QGIS, Best solution? Sent by:qgis-user-boun...@lists.osgeo.org David, Tables 2 and 3 of the following paper have some very nice comparisons of various open source software and ArcGIS 9.3. Steiniger, Stefan, and Geoffrey J. Hay, Free and open source geographic information tools for landscape ecology, Ecological Informatics, Volume 4, Issue 4, September 2009, Pages 183-195. If you can't access their paper, contact the authors and they will send you a PDF of the paper. -- View this message in context: http://osgeo-org.1560.n6.nabble.com/New-to-QGIS-Best-solution-tp4498936p4522509.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user This transmission is intended for the named addressee(s) only and may contain sensitive or protectively marked material up to RESTRICTED and should be handled accordingly. Unless you are the named addressee (or authorised to receive it for the addressee) you may not copy or use it, or disclose it to anyone else. If you have received this transmission in error please notify the sender immediately. All email traffic sent to or from us, including without limitation all GCSX traffic, may be subject to recording and/or monitoring in accordance with relevant legislation. -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Please consider the environment before printing this email. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] QGIS Map Canvas errors (1.7)
Hi We are currently working on app developed outside of QGIS. We had previously worked with QGIS 1.6 and all was well... having now upgraded to 1.7 (also running under Ubuntu), it seems the QGIS map canvas is no longer working for us. Trying to display a layer (vector or raster) results in a number of error messages, of the form: X Error: BadWindow (invalid Window parameter) 3 Major opcode: 12 (X_ConfigureWindow) Resource id: 0xa40127e On closer inspection, it appears that python-qgis and plain qgis are using different versions of QtQui - python-qgis is using libqt 4.7.0(Beta) and qgis is using 4.6.1. Is there a reason that these versions are different, and could this be the source of the errors? Thanks Derek -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] QGIS Map Canvas errors (1.7)
Thanks Jürgen I get this: ii libqgis1.6.0 1.6.0-4~lucid1 Quantum GIS - shared libraries ii libqgis1.7.0 1.7.0~lucid1 Quantum GIS - shared libraries ii python-qgis1.7.0~lucid1 Python bindings to Quantum GIS ii python-qgis-co 1.7.0~lucid1 Python bindings to Quantum GIS - architectur ii qgis 1.7.0~lucid1 Geographic Information System (GIS) ii qgis-common1.7.0~lucid1 Quantum GIS - architecture-independent data ii qgis-mapserver 1.7.0~lucid1 Quantum GIS mapserver ii qgis-plugin-gr 1.7.0~lucid1 GRASS plugin for Quantum GIS ii qgis-plugin-gr 1.7.0~lucid1 GRASS plugin for Quantum GIS - architecture- ii qgis-providers 1.7.0~lucid1 collection of data providers to Quantum GIS Not sure if this makes any sense...? Derek On Wed, 13. Jul 2011 at 12:23:51 +0200, Derek Hohls wrote: On closer inspection, it appears that python-qgis and plain qgis are using different versions of QtQui - python-qgis is using libqt 4.7.0(Beta) and qgis is using 4.6.1. Is there a reason that these versions are different, and could this be the source of the errors? Which packages are you using (dpkg -l *qgis*)? And might there be residuals from manual builds around? Jürgen -- Jürgen E. Fischer norBIT GmbH Tel. +49-4931-918175-20 Dipl.-Inf. (FH) Rheinstraße 13Fax. +49-4931-918175-50 Software Engineer D-26506 Norden http://www.norbit.de -- norBIT Gesellschaft fuer Unternehmensberatung und Informationssysteme mbH Rheinstrasse 13, 26506 Norden GF: Jelto Buurman, HR: Amtsgericht Emden, HRB 5502 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- norBIT Gesellschaft fuer Unternehmensberatung und Informationssysteme mbH Rheinstrasse 13, 26506 Norden GF: Jelto Buurman, HR: Amtsgericht Emden, HRB 5502 ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
