Re: [Qgis-developer] How to get feat.geometry() from SpatiaLite in pyQGis ?
Il giorno Thu, 5 Dec 2013 11:10:03 +0100 Geo DrinX geodr...@gmail.com ha scritto: Hello all, Hi Roberto (sorry for my bad english :-) as in object, within pyQGis I need to read the geometry of a SpatiaLite vector layer. This is my source code: layer = iface.mapCanvas().currentLayer() iter = layer.getFeatures() for feat in iter: geom = feat.geometry() elem = geom.asPolyline() print(ELEM %s\n) %(elem) for p1 in elem: x1,y1 = p1.x(),p1.y() print(XY= %lf %lf\n) %(x1, y1) But... it returns only: ELEM [] ELEM [] ELEM [] ELEM [] . Somebody can help me to understand how to get geometry from SpatiaLite ? I tried in python console on a Spatialite linestring layer: cLayer=iface.activeLayer() iter=cLayer.getFeatures() feat=iter.next() geom=feat.geometry() ln=geom.asPolyline() pnt=ln[0] print pnt.x(),pnt.y() with the correct answer: 1511590.31375 5099925.78455 (but I'm on a old 1.9.0-Master) Thank you in advance Roberto bye, giuliano ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] How to get feat.geometry() from SpatiaLite in pyQGis ?
Hi Christos (!), sorry but your code works only in QGis 1.8 version. I am using the 2.0.1 version and pyQGis methods are changed: http://hub.qgis.org/wiki/quantum-gis/Python_plugin_API_changes_from_18_to_20 BTW, my problem is: - using a SHP file layer, elements are returned - using SpatiaLite layer, elements are returned, but each is empty. It 'a known issue? Someone in the list has tried it? Roberto 2013/12/6 mmekuria sail...@yahoo.com Hi, Roberto: I think the query from layer.getFeatures() returns an iterator and that means you use the nextFeature(feat) to get the next feature until it fails to return a feature, then it means you have reached the end of the iterator list. iter = layer.getFeatures() while iter.nextFeature(feat): geom = feat.geometry() elem = geom.asPolyline() print(ELEM %s\n) %(elem) for p1 in elem: x1,y1 = p1.x(),p1.y() print(XY= %lf %lf\n) %(x1, y1) Should work for you, - Maaza Christos, PhD www.Axumcorp.com -- View this message in context: http://osgeo-org.1560.x6.nabble.com/How-to-get-feat-geometry-from-SpatiaLite-in-pyQGis-tp5092891p5093041.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 ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] W*S obtain only the server url
Hi everybody, I have a WFS layer and I would like to obtain the server url using pyqgis. Now I'm using layer.source(), but it return the entire url with all the parameters. Is there a way to abtain only the server url? When QGIS create the string for the request it append every time REQUEST parameter for first? Could I split the string using it? Thanks -- ciao Luca http://gis.cri.fmach.it/delucchi/ www.lucadelu.org ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] [Qgis-user] GarminCustomMap-plugin version update to 1.0
Hi Good to hear that the plugin is of use. I am not sure if I understood what you want to achieve. In general it should be possible to remove the lower limit of the zoom-factor. However, zooming out and then exporting the Garmin Custom Map / KMZ would give the same result. Btw, the zoom-factor does not affect the possibility to zoom on your Garmin unit. Or did you mean something else? Cheers Stefan From: Harish [mailto:harry.om2...@gmail.com] Sent: 6. desember 2013 14:21 To: Blumentrath, Stefan Cc: rich...@duif.net; qgis-developer@lists.osgeo.org; qgis-u...@lists.osgeo.org Subject: Re: [Qgis-user] GarminCustomMap-plugin version update to 1.0 Great plugin! thanks! Can the Zoom factor be less than 1.0 so that the map can be viewed on lesser scales also? Regards Harish ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Video Uav Tracker
Hi to all, i already developed a plugin for qgis, on 64 bit (linux and windows) it runs smoothly. on 32 bit windows it crash qgis at startup. it is possible to update it on the repository only for 64 bit? if you want to test it you can find it at https://sourceforge.net/projects/videouavtrackerqgisplugin/ . if you want some data to test it for real, ask to me and i will send it to you. sag...@katamail.com ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Shortcut changes in QGIS; call for opinions
Fixing Feature #9094 (http://hub.qgis.org/issues/9094) we have implemented several shortcut changes in QGIS desktop application in order to make more agile editing geometries: QgisApp / MapCanvas: + By default, 'Delete' and 'Backspace' keys are used to delete the current selected features. Now, no message for confirmation is showed (It is an undoable action), but a new status message shows the number of deleted features. 'Delete' key does the same in attribute table dialog, as heretofore. To avoid key conflicts, we have implemented that active MapTool can override the default behavior of shortcut keys. + 'Ctrl+D' removes seleted layer[s] in legend. Now, it ask for confirmation because of it is not an undoable action. Node tool: + 'Delete' and 'Backspace' keys delete the selected node[s]. This tool, as 'capture tool', ... override the default behavior of these keys. Also, it is automatically selected the adjacent node to last removed node. + '' key activates the next node to current selected node. + '' key activates the previous node to current selected node. PR 1010 (https://github.com/qgis/QGIS/pull/1010) contains these changes. Thank your very much! Best regards___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
