Re: [Qgis-developer] Fwd: Threads in sextante
Hi all +1 for using QProcess. I am using it in Lizmap Plugin to run external librairies (winSCP on windows, lftp on linux), and it works great. You can easily connect signals like readyReadStandardOutput(), readyReadStandardError() and finished(int, QProcess::ExitStatus) to your plugin methods. Michael 2012/5/13 Etienne Tourigny etourigny@gmail.com Victor, I agree on all your points. May I suggest to have a unique interface/approach that other existing interfaces can benefit from (i.e. standalone gdaltools and ftools). It seems that QProcess is an interesting candidate (and QThread when not using external app.), because it works in both c++ and in pyqt (ref. gdaltools) - plus there is already code inside qgis that uses it. my 2 centavos Etienne On Sun, May 13, 2012 at 6:13 PM, Victor Olaya vola...@gmail.com wrote: Here is my opinion on all that, in short: -The main idea of using threads is not now to execute multiplep algorithms at the same time, so we can remove a lot of complexity (like 2 processes writing the same file, as it was mentioned) -Implementing a canceling mechanism is going to be the greatest improvement once we have the threading stuff -So, for me, this is what should be done: 1)implementing the threading part 2) implement the cancelling mechanism (a responsive cancel button, etc) 3) modifying algorithm to respond to cancellin events. I think that would be more than enough for a first part, and it would be a great improvement for SEXTANTE Regards p.s. Just to let you know, I am leaving for Honduras tomorrow, and will be there working for 2 weeks, so I not might be very active on the lists during the next 15 days or so 2012/5/13 Marco Hugentobler marco.hugentob...@sourcepole.ch: Hi Alex Also I think about rewritting fTools in C++ and integrating its algorithms into QGIS analysis library. This makes tools a bit faster and will allow to use algorithms in plugins That would be a great enhancement and leverage the analysis library as a whole. Regards, Marco On 13.05.2012 09:23, Alexander Bruy wrote: Hi Etienne, 2012/5/12 Etienne Tourignyetourigny@gmail.com: I stand corrected then - I guess I was confusing it with ftools, which is blocking and does not spawn a process. Any way ftools could be adapted to use the same approach as gdaltools? most fTools functions already implemented as threaded, but there are some minor issues. I work on improving processes handing in fTools, and several tools already don't block main QGIS window, has non-modal dialogs and allows to cancel running process. Also I think about rewritting fTools in C++ and integrating its algorithms into QGIS analysis library. This makes tools a bit faster and will allow to use algorithms in plugins -- Dr. Marco Hugentobler Sourcepole - Linux Open Source Solutions Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland marco.hugentob...@sourcepole.ch http://www.sourcepole.ch Technical Advisor QGIS Project Steering Committee ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] show grid on map canvas (similiar to grid used in composer) - strategy?
Hi Bob, Output looks really nice but I see 2 issues: 1 - grass is optional, not part of qgis core 2 - made for PS output, may not fit nicely with the composer nor the map canvas Perhaps there is a workaround for 2 ? Etienne On Mon, May 14, 2012 at 2:47 AM, Bob and Deb bobd...@gmail.com wrote: I wonder if http://grass.osgeo.org/wiki/Ps.output might give good ideas for drawing a grid on the map canvas. On Wed, May 9, 2012 at 2:00 PM, Etienne Tourigny etourigny@gmail.com wrote: Hi all, I would like to add support to draw a grid on the map canvas, in a way similar to what is done in the map composer (although perhaps without the annotations on the borders). What should be the approach used? 1) plugin or core? 2) rubberbands or basic plot functions triggered after mapCanvas update? I think both drawing strategies are possible using a plugin. It would be best to write in the core, assuming there is sufficient interest in this, but it will take time to trickle down to the stable version (an argument for making it a plugin). I know the current workaround is to create a vector grid with ftools, but that is a little clunky. Any thoughts? Etienne ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] show grid on map canvas (similiar to grid used in composer) - strategy?
I was mostly interested in seeing qgis having similar grid symbology to ps.output. On May 14, 2012 9:51 AM, Etienne Tourigny etourigny@gmail.com wrote: Hi Bob, Output looks really nice but I see 2 issues: 1 - grass is optional, not part of qgis core 2 - made for PS output, may not fit nicely with the composer nor the map canvas Perhaps there is a workaround for 2 ? Etienne On Mon, May 14, 2012 at 2:47 AM, Bob and Deb bobd...@gmail.com wrote: I wonder if http://grass.osgeo.org/wiki/Ps.output might give good ideas for drawing a grid on the map canvas. On Wed, May 9, 2012 at 2:00 PM, Etienne Tourigny etourigny@gmail.com wrote: Hi all, I would like to add support to draw a grid on the map canvas, in a way similar to what is done in the map composer (although perhaps without the annotations on the borders). What should be the approach used? 1) plugin or core? 2) rubberbands or basic plot functions triggered after mapCanvas update? I think both drawing strategies are possible using a plugin. It would be best to write in the core, assuming there is sufficient interest in this, but it will take time to trickle down to the stable version (an argument for making it a plugin). I know the current workaround is to create a vector grid with ftools, but that is a little clunky. Any thoughts? Etienne ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Re: show grid on map canvas (similiar to grid used in composer) - strategy?
Hi John, On Mon, May 14, 2012 at 5:43 AM, John Donovan mersey.vik...@gmail.comwrote: On 13 May 2012 22:49, Etienne Tourigny etourigny@gmail.com wrote: ... Basically I think there could be 2 concurrent and complementary ways to implement grids: 1) basic grid in core, similar to what is already in the composer map (and in my branch) 2) more refined grid(s) as plugin/vector layers, whose rendering order can be fine-tuned Nice work Etienne! Over the weekend, I've knocked up a little plugin of the second type - a plugin layer that uses the new symbology system. It's marked as experimental, and there are a few things on the TODO list, but it can be found in my plugin repo: http://109.123.122.13/qgis/plugins.xml One of the todo's is saving the styling information - I can't find where I can get the XML of the symbol for my writeXml() function. Any ideas? ... I tried your Grid Overlay plugin and this is what I found. Same error as Etienne reported: Traceback (most recent call last): File /home/tourigny/.qgis/python/ plugins/grid_overlay/gridpluginlayer.py, line 63, in draw self.symbol.renderPolyline(polyline, renderContext) ... it also occurs when I cancel the dialog. The plugin layer is made regardless of cancelling dialog on initial plugin launch. When I click the 'Set Style...' button I get this error: Traceback (most recent call last): File /Users/larrys/.qgis/python/plugins/grid_overlay/gridpropertiesdialog.py, line 42, in chooseStyle self, False) TypeError: QgsSymbolV2SelectorDialog(QgsSymbolV2, QgsStyleV2, QgsVectorLayer, QWidget parent=None, bool embedded=False): argument 3 has unexpected type 'GridPropertiesDialog' Is that not implemented yet? I noticed in your metadata.txt and __init__.py you assigned the Layers category, but the action doesn't show up there. Does it need to use the following to be added to/removed from the Layer menu? (worked when I edited gridoverlay.py): self.iface.insertAddLayerAction(self.action_newGrid) self.iface.removeAddLayerAction(self.action_newGrid) Tested with QGIS 1.8 rev.69ef4de on Mac 10.6.8. Looking forward to using your plugin on the current map I am working with. Regards, Larry Shaffer Dakota Cartography Black Hills, South Dakota ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Fw: [Qgis-developer] crash on startup
Hi, Sorry to insist, but still unable to start QGIS on Debian Wheezy. I appreciate any support. Thank you very much! Best regards, Pedro - Forwarded Message - From: Pedro Venâncio Hi, I'm also experiencing this problem after the last Debian (Wheezy) upgrade. I tried this solution, creating a link, but still giving me this error: pedro@debian-amilo:~$ qgis Warning: loading of qgis translation failed [/usr/share/qgis/i18n//qgis_en_US] Warning: loading of qt translation failed [/usr/share/qt4/translations/qt_en_US] qgis.bin: /tmp/buildd/sip4-4.13.2/siplib/siplib.c:10938: sipEnumType_alloc: Assertiva `(((currentType)-td_flags 0x0007) == 0x0003)' falhou. Abortado Here is the link that I created: pedro@debian-amilo:~$ ls -lh /usr/lib/x86_64-linux-gnu/libQtWebKit.so lrwxrwxrwx 1 root root 23 Mai 13 00:11 /usr/lib/x86_64-linux-gnu/libQtWebKit.so - /usr/lib/libQtWebKit.so What am I doing wrong? I've also tried to upgrade the libqtwebkit-dev and libqtwebkit4 with the sid repository, but QGIS continues to crash. Thanks! Best regards, Pedro Venâncio ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Re: Removing old labelling
Nathan Woodrow wrote Any objections for removing the old labelling stuff? Is there anything the old one can do the new one can't? I have several issues with the new labelling engine. - I can only set an angle if I also set x and y coordinates (which I have to artificially add as fields to my data, since they are only in the geometry initially) - the labels aren't placed precisely where they should be - and, finally, as I noted just now, I can't create upside-down labels, as I have described in http://hub.qgis.org/issues/5593 I'd propose the new labelling engine is worked over. I have seen others complain that it doesn't do as they expect. I can't use it for the reasons given above, so I'd have a hard time if the old engine was removed. Kay -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Removing-old-labelling-tp4546541p4974532.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Blocking issues?
Hi devs, I was wondering what is the current status of 1.8 release. I have a number of new features I would like to create pull requests for, but I guess it is better to wait until 1.8 release before that. Etienne On Fri, May 4, 2012 at 8:26 AM, Marco Hugentobler marco.hugentob...@sourcepole.ch wrote: ok, then can we close the ticket? What about also adding a warning when a user on win tries to print a large format? Agreed, it is reasonable to add a warning for win32 (though I need to make a few experiments to figure out the pixel limit that works). Regards, Marco Am 04.05.2012 11:46, schrieb Giovanni Manghi: Hi Marco, I've just tried to print to A0 with QGIS 1.6 on win7 (64bit, but QGIS compiled on WoW 32 bit) and got the crash. For me, it looks like a memory problem, not like a regression. -QGIS on win7 compiled with msvc 64 bit: printing to A0 works -Linux 64bit: printing to A0 works (I remember it worked on 32bit Linux too, probably because gcc is able to use more memory than msvc 32bit). - No problem on Mac 64bit right, this is what it is reported in the tickets. The problem surfaces only on win32. I also made a few tests months ago (see the ticket) but for me as for other users qgis 1.6 seemed to work fine (but maybe it was a matter of the size/weight of the project). So the resolution is to use a 64bit compiled executable on Windows. Since at Sourcepole, we need to have a 64bit win version ready for our clients, we will also provide a public download for 1.8. ok, then can we close the ticket? What about also adding a warning when a user on win tries to print a large format? cheers -- Giovanni -- -- Dr. Marco Hugentobler Sourcepole - Linux Open Source Solutions Weberstrasse 5, CH-8004 Zürich, Switzerland marco.hugentob...@sourcepole.ch http://www.sourcepole.ch Technical Advisor QGIS Project Steering Committee ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: Fw: [Qgis-developer] crash on startup
Il giorno lun, 14/05/2012 alle 10.51 -0700, Pedro Venâncio ha scritto: Hi, Sorry to insist, but still unable to start QGIS on Debian Wheezy. I appreciate any support. Thank you very much! Hi Pedro, probabily depends on the last Qt update in Debina wheezy! Did you try to recompile? -- Salvatore Larosa linkedIn: http://linkedin.com/in/larosasalvatore twitter: @lrssvt skype: s.larosa IRC: lrssvt ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Blocking issues?
Hi Etienne, On Mon, 2012-05-14 at 16:17 -0300, Etienne Tourigny wrote: Hi devs, I was wondering what is the current status of 1.8 release. I have a number of new features I would like to create pull requests for, but I guess it is better to wait until 1.8 release before that. http://hub.qgis.org/projects/quantum-gis/issues?query_id=23 I recently spotted another bug that caused a crash but Alex promptly fixed it. So far then the above 3 tickets are still the confirmed regressions. Other things are surfacing but all stuff also confirmed in 1.7.4. cheers -- Giovanni -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Re: show grid on map canvas (similiar to grid used in composer) - strategy?
Hi Larry and Etienne, Thanks for being brave! On 14 May 2012 18:48, Larry Shaffer lar...@dakotacarto.com wrote: I tried your Grid Overlay plugin and this is what I found. Same error as Etienne reported: Traceback (most recent call last): File /home/tourigny/.qgis/python/ plugins/grid_overlay/gridpluginlayer.py, line 63, in draw self.symbol.renderPolyline(polyline, renderContext) ... That's odd, I'm using 1.7.4 and Python 2.7.2, but I can't imagine the API to have changed. It runs fine on both my Linux and Windows boxes. Looking at the C++ docs, indeed RenderPolyline() takes a QgsFeature as the second parameter, so I'm not sure why it should work for me! it also occurs when I cancel the dialog. The plugin layer is made regardless of cancelling dialog on initial plugin launch. Mea culpa. When I click the 'Set Style...' button I get this error: Traceback (most recent call last): File /Users/larrys/.qgis/python/plugins/grid_overlay/gridpropertiesdialog.py, line 42, in chooseStyle self, False) TypeError: QgsSymbolV2SelectorDialog(QgsSymbolV2, QgsStyleV2, QgsVectorLayer, QWidget parent=None, bool embedded=False): argument 3 has unexpected type 'GridPropertiesDialog' Is that not implemented yet? Another odd one. GridPropertiesDialog, the class in which this function is defined, is inherited from QtGui.QDialog, so should make a valid parent to the symbol selector dialog. I've set it to None on my machine with no ill effects. I noticed in your metadata.txt and __init__.py you assigned the Layers category, but the action doesn't show up there. Does it need to use the following to be added to/removed from the Layer menu? (worked when I edited gridoverlay.py): self.iface.insertAddLayerAction(self.action_newGrid) self.iface.removeAddLayerAction(self.action_newGrid) Ah yes, a copy-and-paste code bug. Ahem... Tested with QGIS 1.8 rev.69ef4de on Mac 10.6.8. Looking forward to using your plugin on the current map I am working with. I'm glad to hear others will be using it, when it works. Regards, John -- One of the advantages of being disorderly is that one is constantly making exciting discoveries. - AA Milne ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Trying to build qgis in Win
Hello, I'm trying to build qgis in my virtualized WinXP (with a little change in a simple marker) and have one question and one problem... The batch with the enviroment that both has the VC++ and the OSGeo4W variables leave in blank PYTHONPATH is correct? And when I run the batch I get : The system can not find the path specified (_path=C:\OSGeo4W\apps\Python27\Scripts)... I change in python.bat the line: set _path=SGEO4W_ROOT%\apps\Python27\Tools\Scripts because this exist but I get the same. Do not know if these steps are OK I continued to cmake-gui, configure and generate and no problem. Then in vc load (from my build) the qgis1.8.0.sln and Build... How I know if this is OK? Then the next step is not clear for my. I must close the proyect and open Install target (which is the file?) and build? ... That's why I like both Debian... any idea... Thanks Anibal ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Re: show grid on map canvas (similiar to grid used in composer) - strategy?
Hi John, On Mon, May 14, 2012 at 1:36 PM, John Donovan mersey.vik...@gmail.comwrote: Hi Larry and Etienne, Thanks for being brave! On 14 May 2012 18:48, Larry Shaffer lar...@dakotacarto.com wrote: I tried your Grid Overlay plugin and this is what I found. Same error as Etienne reported: Traceback (most recent call last): File /home/tourigny/.qgis/python/ plugins/grid_overlay/gridpluginlayer.py, line 63, in draw self.symbol.renderPolyline(polyline, renderContext) ... That's odd, I'm using 1.7.4 and Python 2.7.2, but I can't imagine the API to have changed. It runs fine on both my Linux and Windows boxes. Looking at the C++ docs, indeed RenderPolyline() takes a QgsFeature as the second parameter, so I'm not sure why it should work for me! 1.7.4 method: QgsLineSymbolV2.renderPolyline(QPolygonF, QgsRenderContext, int layer=-1, bool selected=False) 1.8 method: QgsLineSymbolV2.renderPolyline(QPolygonF, QgsFeature, QgsRenderContext, int layer=-1, bool selected=False) When I click the 'Set Style...' button I get this error: Traceback (most recent call last): File /Users/larrys/.qgis/python/plugins/grid_overlay/gridpropertiesdialog.py, line 42, in chooseStyle self, False) TypeError: QgsSymbolV2SelectorDialog(QgsSymbolV2, QgsStyleV2, QgsVectorLayer, QWidget parent=None, bool embedded=False): argument 3 has unexpected type 'GridPropertiesDialog' Is that not implemented yet? Another odd one. GridPropertiesDialog, the class in which this function is defined, is inherited from QtGui.QDialog, so should make a valid parent to the symbol selector dialog. I've set it to None on my machine with no ill effects. 1.7.4 method: QgsSymbolV2SelectorDialog(QgsSymbolV2, QgsStyleV2, QWidget parent=None, bool embedded=False) 1.8 method: QgsSymbolV2SelectorDialog(QgsSymbolV2, QgsStyleV2, QgsVectorLayer, QWidget parent=None, bool embedded=False) I can't even find this method in the current API docs. Just referenced in the error dialog, and last seen in the 1.7.4 API docs. Didn't see these documented in the API changes part of the wiki [0]. Maybe there is a different, or more up-to-date, listing somewhere. I tested your plugin with 1.7.4-4 on Mac 10.6.8 and it works fine. One suggestion: maybe allow the rotation for be about a chosen point, instead of only SE corner? [0] http://hub.qgis.org/wiki/17/API_changes_for_version_20 Regards, Larry Shaffer Dakota Cartography Black Hills, South Dakota ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] new regression on to-be 1.8: crs attribution on newly loaded layer broken
Something's seriously wrong with CRS attribution for newly added layers in qgis-master (soon to be 1.8). I have no idea what is happening, however the steps below will reproduce the issue: 1) Add moeareas.shp (uploaded as attachment in issue 5598: http://hub.qgis.org/issues/5598) to a QGIS project 2) Open the Properties dialog and go to the General tab 3) Take note of the custom CRS applied to the layer The above shapefile's coordinate reference system is EPSG:3148, defined as follow: +proj=utm +zone=48 +a=6377276.345 +b=6356075.41314024 +towgs84=198,881,317,0,0,0,0 +units=m +no_defs The custom CRS created by qgis 1.8 when loading the above shapefile: +proj=utm +zone=48 +a=6377276.345 +b=6356075.41314024 +units=m +no_defs QGIS 1.7.x correctly attributes the newly loaded layer its proper CRS (EPSG:3148); QGIS 1.8 however creates the custom CRS with the exact same projection settings (minus the +towgs84). Something must be wrong in the CRS attribution algorithm / function. This issue leads to misalignment with on-the-fly re-projection projects in which WGS84 layers UTM layers are mixed together. It's a pretty serious regression from 1.7.x and it's present on windows and linux. Issue reported: http://hub.qgis.org/issues/5598. Math ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
