Software plugins that add functionality to the QGIS package

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2
votes
2answers
195 views

With QGIS Plugins/PluginBuilder, how to prevent 2nd instance of Plugin from starting

I am using QGIS 2.6.0, with PluginBuilder 2.0.3 [checking the version, I just noticed that the 2.1.0 update is available] I am writing a plugin; it installs and runs. While running, I am able to ...
-1
votes
1answer
62 views

The reason why dataset does not create layer

I have a plugin written in Python, and two versions of the QGIS, assembly there are differences, but the main suspect, that the version of GDAL==2.0.0dev (1) another 1.11.3 (2) for first ...
0
votes
0answers
37 views

How to export training area information?

I did a supervised classification of a whole Landsat 8 image with 700 Rois (training areas) with the Semi Automatic Classification Plugin. I want to export the class names, the coordinates and the ...
1
vote
0answers
27 views

Plugin for automatic refreshing of vector layers in QGIS [closed]

I am trying to develop a plugin for QGIS which can automatically refresh all vector layers at a given interval of time. Prior to QGIS version 2.06 I was using self.iface.mapCanvas().refresh) along ...
0
votes
0answers
74 views

Using external IDE eclipse to develop python plugin for QGIS?

I am new to QGIS and coding for QGIS, but I have experience with C++ and Qt. I am reading the book "Python Programming CookBook" to learn how to develop a plugin to QGIS, however I am facing some ...
2
votes
0answers
125 views

Using Multiprocessing inside a plugin in Qgis

I spent quite a bit of time looking on how to use the multiprocessing package, but couldn't find anything on how to use it inside a plugin in QGIS. I am developing a plugin that does some ...
1
vote
1answer
127 views

Steps to digitize OpenStreetMap in QGIS?

I am new to QGIS. Can someone help me with the steps to digitize OpenStreetMap? Or should I save the particular area I want to digitize into .tiff files and then try to digitize the .tiff file?
2
votes
1answer
155 views

QGIS: what is the difference between heatmaps and interpolation plugins?

I need to generate a raster looking like a « heatmap » based on a points layer. On this layer, each point represents a nest (bird population study). I need to produce a nest density map (raster) from ...
3
votes
3answers
117 views

QGIS credentials storage - security issue?

QGIS is the main GIS application used at my workplace. Access to the plugin repository has recently been removed due to a perceived security risk relating to the way QGIS stores proxy settings, ...
1
vote
1answer
824 views

ReportLab integration into QGIS returns error message “no module named reportlab”

I want to use ReportLab in my own plugin which I have written for QGIS. I have installed ReportLab for the python versions 2.4, 2.5 and 2.6. The package is respectively installed into the ...
2
votes
0answers
16 views

Disappearing labels on large maps' edge - Easy Custom Labeling Plugin - QGIS 2.8.3

I've been using the Easy Custom Labeling plugin to fine-tune placement of labels. However, I have been having some labels disappear when they are on the edge of large maps. For example, I have an A0 ...
5
votes
2answers
99 views

Why can't I multiply values from column named 'length' using field calculator via PyQGIS?

I want part of my plugin to multiple value of length and add it to table.Basing on this question: How to use QGIS field calculator in python? , I made script that works fine for some filed: I can ...
1
vote
1answer
59 views

writing an expression in qgis (2.14.0)

I have (qgis 2.14.0 Essen). I wanted to write an expression using 'select features using an expression' but the page did not show the 'field' part from which I can click on 'load all unique value'. ...
2
votes
2answers
387 views

How to host the results of qgis2leaf on google drive?

I am wondering how to host the results of the plugin qgis2leaf on google drive to create a free hosted webmap? Here is an example: ...
2
votes
1answer
183 views

How to set QGIS 2.14 on OS X to use GRASS 7

My current QGIS installation (2.14) on OS X 10.11 is set up to work with GRASS 6.4.4. I am guessing this is the default GRASS version that comes preinstalled with the QGIS package maintained by ...
3
votes
2answers
125 views

QGIS python error using qgis2leaf and qgis2web

I'm trying to export a project using qgis2leaf and this error appears: An error has occurred while executing Python code: Traceback (most recent call last): File ...
2
votes
1answer
56 views

Copying/pasting feature geometry only

Does anyone know of a way in QGIS to copy a single feature in a layer and to paste it back into the same layer WITHOUT copying over the attributes?
6
votes
1answer
58 views

QGIS crashes when doing a rollback after modifying values of an user-added feature with pyQGIS

I'm developing an addon for QGIS that needs to assign a UUID to any feature as soon as it is added to the layer. I'm using the featureAdded signal to write the UUID in the corresponding field of the ...
2
votes
1answer
109 views

How does QGIS know there is a plugin update?

I've created a plugin and hosting the installation zip and xml file on a local network repository (for company use). Everything works fine but every time a user opens QGIS, it shows that the plugin ...
2
votes
1answer
272 views

QGIS Viewshed Analysis Plugin

Does anyoe have a link to or know of a list of raster formats the above tool can work with? I'm on QGIS 2.8 using the latest version of the plugin. I've tried a couple of different raster types and ...
6
votes
1answer
6k views

What's the proper format for WKT linestrings when importing into QGIS?

I'm trying to run the following test CSV through the Delimited Text plugin as WKT data: oid,Line 1,LINESTRING((45.554194 -122.686101, 45.433001 -122.762632)) 2,LINESTRING((45.432505 -122.598327, ...
0
votes
1answer
21 views

How to access pgRouting Layers via script

I would like to provide input to the pgRouting Layers through a script. The scenario is as follows: I have a bunch of points whereof every point is representing a starting point and I have another ...
2
votes
1answer
76 views

QGIS corrupted processing tool

I've been dealing with various problems after re-installing QGIS and other GIS-related software (see QGIS corrupted plugins upon reinstallation). The solution worked for a bout a day and now I lost ...
0
votes
0answers
20 views

QGIS OSM display issue

I discovered that Open Street Map in QGIS would not print properly because the street names were illegible. I looked through some questions that others had posted and saw that I needed to install the ...
2
votes
1answer
22 views

Return several layers from listwidget

I am new to python and I am writing my first plugin that add selected layers from a listwidget to QGIS. So good so far, but it does not allow me to select several layers at once. Am I missing ...
2
votes
0answers
32 views

How to run QGIS plugin from python script

I would like to access external QGIS plugins through a python script. I have been able to access the built in QGIS processing and vector toolbox, but have been unsuccessful with external plugins such ...
4
votes
2answers
63 views

Qgis2threejs plugin results images with bleeding edges and wider background canvas

I have started using 3D Qgis2threejs plugin in an attempt to make some beautiful 3D images of LiDAR analysis I am currently working. I have two questions regarding that: I am getting that bleeding ...
1
vote
0answers
60 views

Designing User Interface in QT designer and connecting with QGIS [closed]

I am trying to input a excel file into QGIS from the QT designer User Interface. I want to select the attribute list from the UI and display the thematic maps from the selected attribute list to the ...
2
votes
1answer
220 views

Measure distance between vertices of polylines in QGIS for Desktop

I have this dataset of coordinates of electric lines in the form of vector polylines as shown in the image below, and I need to measure the distance between the first and last vertex of each line and ...
1
vote
1answer
338 views

MMQgis Plugin error in Qgis

I am using Qgis 1.9 . I have downloaded a plugin "mm qgis", however When I run this plugin I am getting following error: An error has occured while executing Python code: Traceback (most recent ...
3
votes
1answer
73 views

SAGA Watershed Segmentation in QGIS: Error 1

I am trying to run a watershed segmentation using the SAGA plugin in QGIS. Unfortunately, every time I have tried to run this on a specific file QGIS freezes. The log output reports the following: ...
1
vote
2answers
51 views

How to insert attribute in a selected feature from active layer (PyQGIS)

I want to update some fields from a selected feature in an edit session with some values provided by a form made in QtDesigner. The fields have indexes 0 and 2. Tried so far: from edit_Form import ...
7
votes
1answer
3k 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 ...
2
votes
0answers
35 views

Apply QChainage based on field value

I'm quite new to QGIS and found the great plugin QChainage. Simply put, it allows to create points along lines. There are different modes available. Create points every X meters or Divide the line i ...
4
votes
0answers
53 views

How do I implement PyQGIS multithreading to update a progress bar

I am developing a PyQGIS plugin using python. I facing a problem during the implementation of threading in my plugin. I have written a python script which contains a class wrapping all geo-processing ...
9
votes
1answer
7k 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 ...
2
votes
1answer
144 views

Installing python xlw and xlrd libraries for QGIS on Mac OSX with Python 2.6

I am trying to use the XYtools plugin for QGIS (because copy-paste is not working with just one of my files?!), and I'm concerned that I actually just need to update my Python but not sure if doing so ...
2
votes
0answers
50 views

module object has no attribute classFactory

I asked this question several days ago on the QGIS developer list but didn't get any love. I'm hoping someone can help me resolve this error. I have a custom repo and a custom plugin that I'm ...
3
votes
2answers
184 views

Measure distances between specific features in QGIS for Desktop

I'm completely new using PyQGIS and developing plugins. Currently I have a layer with the X and Y coordinates of electric distribution poles, where each pole is a feature. What I need to do is ...
1
vote
0answers
70 views

minidump Error Message when closing QGIS

When closing QGIS 2.8.6, I get the following error: 'minidump written to C:\users\username\appdata\local\temp\qgis-20160219-123421-84444-9032-e7e2ab.dmp' It only appears to happen if i have used the ...
1
vote
0answers
41 views

QGIS plugin saving layerstyle

I tried to use: Error = "" vLayer.saveStyleToDatabase ("styleName", "description", True, "", Error) in a python-plugin for QGIS 2.6 to save the data but no success. No error is written. First of ...
0
votes
0answers
49 views

GIS route creation from street names

I have a list of streets comprising 300+ routes. Each route (in text) lists 4-5 street names where the route should take place. I would like to create each route, that is, plot the street names and ...
3
votes
1answer
65 views

Retrieve Google Maps API friendly latitudes and longitudes from shape file polygon

I have a shape file with a polygon in it, and I am trying to the latitudes and longitudes associated with it so I can use them with the Google Maps API. So far I have been working with QGIS Lyon and ...
1
vote
1answer
74 views

How to define a point by coordinates in QGIS (Plugin)

I am developing a QGIS plugin and got currently stuck at setting the geometry of a feature based on coordinates. I retrieve coordinates through an SQL query, create a feature and try to set the ...
0
votes
0answers
38 views

Work values of a table in QGIS!

I have a table associated to a shapefile with the number of people who live in different villages and the corresponding city. I want to define a new shapefile with points located in the centroide of ...
2
votes
0answers
133 views

QGIS-Python Need to check if layer is in current extent and make it active

I'm putting together a plugin for QGIS. The user inputs a county and a coordinate pair. The plugin then adds in the county data and zooms to the given coordinates. The problem is that there are ...
1
vote
1answer
480 views

Openlayer plugin in QGIS, error in projection 3857 Pseudomercator

I'm using QGIS plugin Openlayer to set the background of Google satellite under my vector layer. However, even if I project my layers as EPSG 3857 (the default and only possible projection for ...
2
votes
0answers
128 views

Is the postgis layer option in qgis 2.12 Lyon two way? Was the spit plugin built in?

I am trying to install Postgresql with Postgis on a remotely accessed terminal only installation of Ubuntu 14.04 that I want to use to connect to QGIS 2.12 and hopefully have a two way transfer ...
2
votes
2answers
60 views

Icon for plugins in own repository

Does anyone know if there is an opportunity to add icons for your own plug-in in its own repository? like this not like this with green puzzle other illustration I spied on how to implement ...
2
votes
2answers
52 views

PyGIS remove QgisVertexMarker from scene

I am writing a plugin that includes interaction with the map. Therefore I use a QgsMapTool. It is possible for a user to mark a point on the map. When the user clicks a red X is drawn on the mapCanvas ...