Software plugins that add functionality to the QGIS package

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1answer
82 views

Pyqgis 2.2 : How to allow editing on layer and features

I'm writing a pyqgis plugin with qgis 2.2 I succeeded in accessing and displaying vector data (geometries & attributes). Now I would like to allow editing for all my layers and all features ...
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33 views

Pyqgis :2.2 : link between a signal and an event

I'm writing a pyqgis 2.2 plugin with qgis 2.2 I succeeded in accessing and displaying vector data (geometries & attributes). I succeed also to create a 'beforecomitechanges' signal ( emitted, ...
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2answers
205 views

How to get the file paths of the loaded layers in a QGIS plugin?

I am very new to GIS, QGIS and Python so please bear with me. I am using QGIS 2.0 and I would like to develop a QGIS plugin that would display the raster layers of the main window in order to allow ...
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0answers
49 views

Modifying properties of Attributes Table in QGIS?

In my QGIS project I'm using vector layers that require a lot of data inputting/editing. The problem is that some of the data I'm inputting varies greatly in matter of length and structure (various ...
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43 views

Are there reference manual pages anywhere for QGIS built-in “buffer” and plugin “points2one”?

Perhaps I am missing some quick pop-up help mechanism, but as a relative newcomer to QGIS (having cut my teeth on ArcGIS 10.1), I am struggling to find reference manuals (i.e. explanations of all ...
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16 views

change symbology of an graduated renderer in qgis

In my plugin(c++) I add a vectorlayer to map, then I change the symbology of the QgsGraduatedSymbolRendererV2 of this layer. After this I refresh the map with ...
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2answers
243 views

How to copy attribute values of fields in selected features of one layer to another Qgis programmatically?

I am trying to get the values of attributes of the selected features of a layer field by field and copy to another layer that I created in qgis with pyqgis. Is here a example for this. Every example ...
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2answers
60 views

How can I project a power line net in QGIS?

I am working with power lines net using the software QGIS. I would like to know which plugins or tools do I need to be able drawing (projecting) them.
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34 views

Points generated using mmqgis are invalid

I used mmqgis plugin to geocode some addresses, he pointed to have found them all. But the screen shows only a point when there are more than 100, in the attribute table all appear. I loaded this ...
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39 views

MMqgis geocode addresses as intersections

I'm using the plugin mmqgis to geocode some addresses. But in my database has some registered addresses as intersections, eg Av Av Test 1 & Test 2 Tested directly in Google Maps and did not ...
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1answer
46 views

What causes this error when loading plugin

After installing pyspatialite on my Mac two plugins fail to load with this error:: This plugin is broken invalid literal for int() with base 10: '2-spatialite' I am fairly sure that the offending ...
4
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1answer
170 views

Can I add entries to the layerlist context menu?

I am implementing a python based plugin for use with QGIS 1.8. Most of it's user interface is contained within a QDockWidget but there are some layer specific controls I would like to append to the ...
3
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1answer
78 views

Can QGIS table editor achieve similar results to Pivot tables in Excel?

Is it possible to achieve similar results to Pivot Tables in QGIS table editor so as to use just QGIS instead of several software solutions? Or are there maybe some plugins capable of achieving those ...
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1answer
58 views

How to split Polygons by line grid?

I want to split a polygon by a intersecting line into different parts, exactly like in this post(Qgis - Is there a way to split a polygon layer with a line layer?). I have a vector grid to cut the ...
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0answers
52 views

How to write a custom map canvas item by subclassing QObject and QgsMapCanvasItem?

I'm writing a QGIS python plugin where I place some QgsVertexMarkers on the canvas like this: marker = QgsVertexMarker(self.canvas) marker.setCenter(QgsPoint(point[0],point[1])) Now i would like ...
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0answers
20 views

plugin list not appear

I use QGis 2.4 over linux ubuntu 12.04 (a very standard situation :D) Why does the list of installed plugins not appear in the program?
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35 views

compile QGIS-plugin for Windows: problem with gdal_i.lib version

While compiling my plugin for QGIS 2.2 there are no errors, but it ist still not loading in QGIS because of an dll error. (function not found) I think the problem is at the gdal version. The ...
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0answers
243 views

Connecting ArcSDE to Quantum GIS for dummies?

I really have a need to be able to connect to and edit ArcSDE data in Quantum GIS. This question has been asked before and apparently is possible, but the instructions are just not specific enough ...
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1answer
119 views

QGIS QgsPluginLayer broken on 2.0.1?

Is there a generic issue with the QgsPluginLayer class in QGIS 2.0.1? When I take the basic Watermark sample from here: https://github.com/sourcepole/qgis-watermark-plugin and make a couple of mods ...
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4answers
682 views

Unable to load GRASS plugin

I upgraded from QGIS 1.7.0 to 1.8.0, including updating GRASS to version 6.4.3. Since then, GRASS isn't any longer listed in the Fetch Python plugins. I uninstalled and re-installed the whole package ...
4
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1answer
173 views

MMqgis (hub distance) error in distance

So I am trying to calculate the distance of several points to a coastline, using hub distance (mmqgis plugin) in Qgis Dufour 2.01. I am using the default coordinate system (WGS84) and I, already, ...
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0answers
79 views

offline editing not working on qgis mobile

I would like to work with offline editing using Qgis desktop and Qgis Mobile, in the first essay i tried to use Qgis 2.2 and its offline editing plugin , it has worked fine then i moved the qgis ...
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1answer
178 views

QGIS 2.4 (and 2.0.1): How to uninstall/reinstall a plugin where uninstall is disabled?

Plugin Raster->TerrainAnalysis->slope which had initially worked, started showing what another questioner referred to as a "crazy histogram": qgis2 slope analysis from NED data gives crazy histogram ...
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38 views

View tiled shapefiles in QGIS 2.0 or greater as one layer?

I have tiled vector data in shapefile format. I need to view them in QGIs 2.0 or greater. I was not able to find any usable solution (merging is not the way). I have tile indexes, which I use for ...
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18 views

Problem with Gpstools Plugin

I installed QGis 2.4 either with the standalone and Osgeo installers on a win7 Pro 64 laptop with 4 gb of RAM and I have the following problem When I invoke GpsTool either by the icon or the vector ...
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1answer
115 views

Possible to run “Merge shapefiles to one” algorithm from Python script?

Developing a python script in QGIS 2.2, I can run algorithms from the Processing plugin fine such as those from QGIS geoalgorithms and SAGA. Can you do the same for the algorithm "Merge shapefiles to ...
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38 views

How to programmatically add a new plugin repository in QGIS?

How can I add the name of a repository and URL to the third-party plugin repository using python in QGIS 2.01?
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3answers
1k views

How to connect the selectionChanged signal with pyqt?

Hi I am developing a plugin for Qgis in python, I need to connect the sselectionChanged signal emitted when a feature of the layer is selected, I could not find any examples on internet, here is what ...
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1answer
87 views

How to interact with other layers in a QGis Python init function?

I am using QGis and making a Python script that sets the Python Init function to a custom UI file. I have a function with the following signature: def formOpen(dialog, layer, feature): ... I ...
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3answers
379 views

Calculating MCP in QGIS

QGIS 1.8.0. Scipy installed. Statsmodels installed. Using Sextante to try to calculate MCP. When I run the MCP calculation from the Toolbox, a layer is added to the file, but the layer doesn't ...
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1answer
37 views

Count points in a polygon that changes form (“on the fly calculation”)

I have tried to find a plugin for this, with no luck. Perhaps someone knows of a plugin that can do the following: In this project I create a lot of polygons that contain points, and the size of the ...
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56 views

gdal_translate from within pyqgis [duplicate]

I want to use gdal_translate from within a python script in my plugin qgis2leaf. I've tried with ...
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1answer
103 views

How to use the MMQGIS plugin through the Python console?

I know how to make Hub Lines using the GUI, I want to know how to do the same using the Python Console, a tutorial would be great. Thank you
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0answers
7k views

Open Layers Plugin and QGis 2.4 [closed]

I have installed Qgis 2.4 with the stand alone installer and the OSgeo4w too on three different computers. Two have win7 64 and one vista 64. It seems that the Open Layers plugin does not work ...
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83 views

How to extend lines from “station line” plugin in QGIS

I'm trying to create cross sections using the station line plugin (and then import them to HEC RAS). But I can't seem to create lines longer than 99.99 meters from each side of my river line. Is this ...
2
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1answer
98 views

QGIS contour plugin exception struck help

I am a fisheries biologist and I am just getting started with QGIS. I took a few GIS classes in college so my GIS knowledge is not extremely high. On to my question. I am trying to make a depth map ...
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0answers
129 views

how to add wms to QGis via cpp-plugin

I try to add a wms-Layer to QGIS Desktop from my plugin(c++) QString uri= ...
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13 views

Create shapes using google streets layer of openlayers plugin [duplicate]

I am using openlayers plugin to use as the base layer of streets google. I have attached the picture that you can see that the more I give to zoom overlay layer moves. When I used another shape as I ...
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0answers
35 views

QGis road graph plugin can't be configured

I am using QGIS 2.2.0 Valimera on a Windows 7 ultimate 64 bit version. I want to calculate the shortest path on a line layer (OSM street layer) with the road graph plugin. The settings option to ...
2
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1answer
421 views

Python Script that calls the Voronoi Polygons Function?

I've been looking to see if there was a way to call Voronoi Polygons function found in Vector/Geometry Tools, directly from the code but I have not found one. Does this currently exist? Is there a way ...
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55 views

How to display image on the Graphics View widget in QGIS

The idea is to create a plugin in QGIS in which on mouse clicking of the layer show up a popup with Graphics View widget on it. I found this pure code: self.scene = QtGui.QGraphicsScene() ...
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35 views

take record from ms-access using python and show it in Qt

I have a ms-access database and i try to make QGIS plugin that take record from table and show it in Qt, database have format like this : NO Skala 1 Skala2 Rekomendasi ...
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41 views

Couldn't load PyQGIS in QGIS 2.2 on Ubuntu 14.04 [duplicate]

This issue appears to be occurring with some frequency to folks in some shape or form. I upgraded from ubuntu 12.04 to 14.04, with loss of python functionality. My QGIS version is 2.2 from the ...
0
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1answer
36 views

QGIS API documentation in French?

I am looking for a document which explains what the API of QGIS is, with examples of this API but in French.
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2answers
52 views

Is there a way to run spatial join within tolerance?

I have some data that should be spatially joined, but from small precision differences (less than 1 in) they aren't joined. I've found no way to add tolerance to qgis spatial join operation. Is there ...
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0answers
31 views

Is it possible to customize openFeatureForm of pyqgis?

I am a beginner in PyQgis. I am trying create a plugin, which will be used to AddFeatue,Delete Feature, and Edit the Feature. It is more customized than which is provided by Qgis (2.2). I am capturing ...
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1answer
578 views

Is the use of Google Earth imagery via the OpenLayers Plugin in QGIS legal?

I understand the terms and conditions WRT use of Google Earth imagery in external applications are strict. Years ago ArcBruTile offered such service in ArcGIS the legallity of which was ...
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1answer
19 views

QGIS Plugin for creating Quality information

I am planning to create a plugin to create quality information. The plugin should do following actions: 1) To add Dataset for which the quality information is to be added. 2) View the quality info ...
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1answer
46 views

How to display information when a certain dataset is loaded into QGIS?

I need to show the quality information of a dataset that was manually created by me, that is saved as a text file. The text file will "pop up" when the dataset is added into QGIS. I have no experience ...
1
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1answer
138 views

Plugin of Multiple buffers in QGIS

I hope to create a plugin to do multiple buffers in QGIS. This is my script: """/*************************************************************************** izisse_test ...