Software plugins that add functionality to the QGIS package

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3
votes
1answer
579 views

Handle add new feature event and/or access feature before commit?

Is it possible with PyQGIS to catch "add new feature" event before commiting changes on the layer? or at least to access new features before commit.
1
vote
1answer
140 views

Get feature while editing

I have created my custom form for features editing, using layer.setEditForm("form.ui") and layer.setEditFormInit("init") properties. init method receives dialog, layerId and featId as arguments. ...
1
vote
0answers
125 views

Are there limitations with gdal virtual raster option?

I am new at Postgis and I'm groping... I pretend to rasterize some weighty vector layers in Postgis, do some map algebra and reclassification with them and visualize intermediate as well as final ...
5
votes
1answer
1k views

Save Visible WMS layer to file

Is there tool to save currently visible WMS layer to file in QGIS, or some place in QGIS where you can get needed xml to fetch it using gdal ?
1
vote
0answers
130 views

How to draw nodes of a graph in Python and link them to a table?

I would like to draw some points with a Python GUI, like a graph, and link those points to a table.
3
votes
1answer
1k views

Qgis OpenStreetMap plugin misbehaviour

I used the plugin successfully. But yesterday, after changing several buildings in JOSM. Import under qgis with the plugin does not work anymore. The buildings are in the layer point! Do you have any ...
0
votes
1answer
309 views

How to properly add a Python Module to a Plugin?

I've been trying to use a module that is installed in my local version of python, but whenever I open the plugin itself, it does not manage to locate said module. The module in this case is Noise ...
1
vote
0answers
109 views

'File is too big' error when uploading QGIS Plugin

I have written a simple QGIS plugin which zooms the map canvas to a user specified UK postcode. I would like to share the plugin but the csv file, which contains stripped down OS Code-Point open data ...
1
vote
1answer
144 views

How to use QgsVertexMarker in a python plugin?

I am trying to display a vertex marker for a QGIS python plugin I am writing. I am getting a the following error... 'NameError: global name 'QgsVertexMarker' is not defined' canv = ...
1
vote
2answers
107 views

Missing GPS Tools button

Following the guidance at, http://docs.qgis.org/html/en/docs/user_manual/working_with_gps/plugins_gps.html I checked my Plugins Manager and verified that GPS Tools is enabled. However, unlike what ...
1
vote
1answer
333 views

Cannot install TimeManager 0.7: no module named six

I was able to extract and copy dateutil to C:\OSGeo4W\apps\qgis\python\dateutil and the error saying that dateutil wasn't found disappeared. But now I am getting the error no module named six. Tried ...
1
vote
1answer
233 views

Qgis - Raster clip Problem

I tried to use the Raster (Extration) tool "clipper" and I always get this error log: What is my problem? Fehler bei der Ausführung von Python-Code: Traceback (most recent call last): File ...
4
votes
1answer
215 views

Where to report QGIS and QGIS-Plugin bugs?

I often find bugs in Qgis and its Plugins. I would like to ask about this on the internet but I do not seem to find the proper place to address this issue. Are there any instructions?
2
votes
1answer
645 views

QGIS “Coordinate capture” plugin - how to turn it on?

I have enabled the Coordinate Capture plugin via the Plugins menu. But I cannot seem to "turn on" or activate the plugin and get it running. How do I do that?
0
votes
2answers
915 views

Digitizing from OpenLayers Plugin in QGIS, or create raster?

Is there an easy method for digitizing from a layer added from the OpenLayers pluggin. As i cannot snap to it or use it as raster so the entire map does not load? two separate issues there.
1
vote
0answers
49 views

Handling save event in QGIS

I have managed to load QgsVectorLayer from PostgreSQL and add it on the map. Is possible to trap save event after editing, do my own saving, call layer refresh and in this way prevent from default ...
0
votes
1answer
109 views

Alternate option for a Data Player plugin for GPS in qgis

I found a plugin for QGIS to play a GPS Track. (Data player plugin).The Problem is I can not read .gpx File with this plugin. Is there another option?
5
votes
1answer
560 views

CAD Like functions in QGIS

Is it possible for a script to be built that will use a reference point and have it draw several polygons based on distance and bearing, then assess the terrain under the polygon for highest obstacles ...
2
votes
0answers
91 views

How to install statist plugin in QGIS / OS X

I am stuck with installing a plugin for QGIS namend "Statist". I get the following message when starting QGIS: "Missing matplotlib Python module". So basically this question relates to all plugins ...
1
vote
1answer
124 views

Raster menu does not have any tools in QGIS

in raster menu in QGIS, only raster calculator is available, how to get other tools, like wrap (reproject) please see the image for help. help me to get this.
6
votes
1answer
315 views

QGis Making Column Value of Attribute table unique

For a shapefile, I have a field named id with the following contents in it: 1 1 2 2 I want to make these values unique such as: 1 2 3 4 Is there any way to achieve this in Quantum GIS (using any ...
1
vote
2answers
179 views

Making Multipart Features to Unique features

I have a layer with two lines crossing over each other. I create intersection point over them and then create a buffer for a specified distance and then using difference tool, I delete the buffer ...
1
vote
0answers
129 views

How do I fix this QGIS sextante error? NameError: name 'sextante' is not defined

A colleague of mine posted this the other day. We haven't got any nibbles yet and I wanted to elaborate on the issue. We are having trouble running the r.mapcalculator function and receive the error ...
1
vote
1answer
421 views

Why do I get 'KeyError: 0' when using Line Intersection tool?

I'm using Quantum GIS version 1.8.0-Lisboa and trying to create intersection point using Intersection tool. (Vector -> Analysis tools -> Line Intersections ) But when I do that for my shapefile, It ...
0
votes
2answers
665 views

Python module “shapely.wkb” missing

I am trying to follow a tutorial from here http://qgistips.spatialthoughts.com/2012/12/find-neighbor-polygons-in-layer-in-qgis.html#more I have downloaded the relevant python script and edited it as ...
1
vote
1answer
101 views

Should a GDAL Plugin be the same version as GDAL aready built into QGIS

Should a GDAL Plugin be the same version as the GDAL that's aready built into the QGIS version installed? Or,can another different version of GDAL be built and it installed as a Plugin for QGIS, ...
3
votes
0answers
65 views

Programatically reorder layers in qgis? [duplicate]

Possible Duplicate: Sort layers in QGIS table of contents? I write a qgis python plugin ,and i try to connect keybord keys to reoder layers in qgis . Are there a method in qgis allows me to ...
4
votes
2answers
125 views

Creating space at intersection of two links

I have a shapefile consisting of two links which are crossing over each other. I want to create an empty space at the point of intersection of the two links. As of now, I have been manually doing ...
4
votes
1answer
61 views

How to deliver an additional Python Library with own Plugin?

For my own plugin I need a special library (pyexiv2) to write a comment into a jpg file (PIL does not do that). When I want to share my plugin in one of the repositories in the future, what would be a ...
1
vote
1answer
172 views

Why won't QGIS let me write to a file?

I am writing a QGIS Python Plugin. I am trying to write data to a file using with open("filename.txt", "w") as f: f.write("file text.") QMessageBox.information(None, "Test", "Written to file.") ...
4
votes
3answers
2k views

How to install QGIS 1.8 plugin Georeferencer?

My question is about qgis 1.8 georeferencer plugin. I installed the new version qgis 1.8 but I don't have the georeferencer plugins, how do I install it? I used the georeferencing plugin with QGIS 1.6 ...
0
votes
1answer
73 views

QSpatiaLite query syntax

Using the QSpatiaLite plugin in QGIS I composed the following query SELECT 'AddressPoint_2'.'buildingNu', 'AddressPoint_2'.'postCode' WHERE 'AddressPoint_2'.'postCode' = 'NR13 3AA' FROM ...
7
votes
3answers
514 views

How to use ZonalStats plugin?

I am using QGIS 1.8.0 on a Windows Home Premium 7 machine. I have a single band TIFF that is 187 MB in size. My vector polygon shapefile represents a regular grid of a 147x112 36kmx36km grid cells. ...
1
vote
1answer
101 views

Python error when running SpatiaLite with OSGB(27700)

I have a project open in QGIS and am trying to import an Ordnance Survey Address Point layer into SpatiaLite. I have recently installed the Qspatialite plugin. I open SpatiaLite in the DB Manager ...
0
votes
0answers
23 views

postgis: no module named psycopg2 [duplicate]

Possible Duplicate: psycopg2 error with QGIS 1.5 When I open DB Manager in QGIS I get what appears to be an error message at the bottom of the window:- postgis: no module named psycopg2 ...
5
votes
1answer
164 views

Is it possible to grow QGIS symbol size over time?

I've got a data set of people movements within my municipality. (between points of places) I've managed it with the plugin for QGIS 'time manager'. Over time people come and go, and based on a count ...
8
votes
1answer
3k views

How do I maintain a resposive GUI using QThread with PyQGIS

I have been developing some batch processing tools as python plugins for QGIS 1.8. I have found that while my tools are running the GUI becomes non-responsive. The general wisdom is that the work ...
8
votes
1answer
2k views

Issues Accessing ESRI File Geodatabase within Quantum GIS Desktop

I am trying to access ESRI file gdb from Quantum GIS. I am on Windows 7, 64-bit. I have found many useful threads on how to set up this functionality within Quantum GIS. The method I went for is ...
2
votes
0answers
130 views

Install Georeferencer Plug-in QGis 1.7.0 OS X

I'm trying to install the Georeferencer plug-in in QGis 1.7.0 on Mac OS X (10.5.8). However the plug-in doesn't show up in the list. I have used "enable 3rd parties directory" and I have checked ...
3
votes
2answers
1k views

How to install shapely for python 2.6 (Mac) NOT 2.7?

I'm trying to use Polygonizer plugin inside QGIS, but it needs Shapely to work. I've installed Shapely (pip install Shapely) but that's for python 2.7. QGIS works with python 2.6 (on Snow Leopard) and ...
9
votes
3answers
3k views

How to programatically check for a mouse click in QGIS

I want to know how to check for a mouse click in QGIS. I am trying to write a python plugin and want to provide functionality similar to the "Select Single Feature" tool that already exists in QGIS. ...
7
votes
1answer
1k views

How to enable GRASS-modules in QGIS?

I have the latest QuantumGIS-1.9.0-master from Github with python-modules support and full GRASS-integration (GRASS-4.6.3-RC2) on Linux. When opening the GRASS-tools plugin, it only displays six ...
6
votes
1answer
1k views

How to transform a selected multipart feature into singlepart features while editing in QGIS?

There are several questions and respective answers for how to make a multipart features Layer into a singlepart features one using QGIS: How to break a single polygon into multiple polys? How to ...
1
vote
3answers
1k views

Where is the QGIS Parallel Line Plugin?

Somehow I believe to recall there does exist some ind of "draw paralel line" plugin for QGIS. Could anyone please point me to - I cant find it :-/
3
votes
3answers
415 views

How to install the QGIS Statist plugin in Mac OS X?

I'm trying to install the Statist plugin. I'm running MacOSX 10.7.5. with Python 2.7.3. and Numpy 1.5.1. I have also installed matplotlib 1.1.0 (for python 2.7). When I try to install the Statist ...
1
vote
2answers
431 views

count lines in polygons

I found the following link to a post saying that a count lines in polygons had been added to ftools for QGIS: http://hub.qgis.org/issues/4712 However I can't find how to access this feature nor any ...
3
votes
1answer
153 views

Button to add a new line in a non-spatial table without opening the table itself using QGIS?

While using QGIS and having loaded a non spatial table (from PostGIS), is it possible to add a new row to its table attributes without having to open the attribute table first as in here Is it ...
1
vote
1answer
158 views

Get the keyPress-Event in QGis-Plugin

I have a QTreeWidget in a QWidget which is the gui of my plugin(cpp). Now i want to get the keyPress-Event of a Node in the TreeView. I try to reimplement the signal of the QWidget. protected: ...
0
votes
1answer
272 views

How to set the cursor to busy mode?

How can I set the cursor to busy-mode/in progress from my qgis plugin (cpp)? I couldn't find anything in the API documentation.
4
votes
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 ...