Software plugins that add functionality to the QGIS package

learn more… | top users | synonyms

3
votes
2answers
115 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 ...
6
votes
1answer
48 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 ...
0
votes
1answer
77 views

How to merge layers by name in QGIS?

This is the scenario: I have thousands of shapefiles organized in different folders. My purpose is to merge all the shapefiles with the same name into a new single shapefile. I know I can import all ...
0
votes
1answer
20 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 ...
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
66 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 ...
2
votes
1answer
19 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
29 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 ...
18
votes
1answer
221 views

Displaying numbers of single band raster layer in QGIS without additional vector layer?

I wonder if there is a raster symbolizer in QGIS with a label option, that renders the cell values as labels of single band raster layer, a scalar field. The standard raster symbolizer dialog in ...
1
vote
0answers
53 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 ...
4
votes
2answers
60 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 ...
2
votes
0answers
31 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 ...
3
votes
1answer
68 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: ...
4
votes
0answers
39 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 ...
2
votes
1answer
91 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 ...
1
vote
0answers
57 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
2answers
45 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 ...
1
vote
1answer
66 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
37 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 ...
3
votes
1answer
60 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
67 views

Using Midvatten plugin in QGIS?

After installation of the Midvatten plug in (QGIS 2.12 Lyon), i tried to get confidence with the plugin following the tutorial. When trying to plot stratygraphy data, a QGIS error shows up: "the ...
1
vote
1answer
17 views

Is there a possibility to simply display the next element on a layer?

I have to check all the elements on a layer and I'm looking for an easy way to go through all of them. One option would be to open the attribute table and just always click on the next line and then ...
2
votes
2answers
59 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 ...
1
vote
0answers
23 views

Does SAGA in QGIS processing can support no ascii name?

From Qgis, I am calling through Processing the Saga algs "clipgridwithpolygon" raster_inside_poly = processing.runalg("saga:clipgridwithpolygon", my_raster_temp, ...
1
vote
1answer
29 views

QGIS Plugin 'make' error on Windows

Creating QGIS plugin via PluginBuilder and compiling resources via simple 'make' works straightforward under Linux (SuSe 13.2). Under Windows 'make' (3.81) produces an error: ...
1
vote
1answer
46 views

Can I consider QGIS OpenLayer basemaps as WMSs?

I am writing a manuscript about QGIS, and I categorized the data types into 3 classes according to popularity (raster, vector, web-data). Then I separated web-data to WMS and WFS. Under the heading ...
2
votes
0answers
43 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 ...
0
votes
1answer
36 views

Error with brush style while working with Qgis2leaf

I am getting following error while working with QGIS2leaf. it saying that QgsSimpleLineSymbolLayerV2' object has no attribute 'brushStyle'. I didn't understand why its coming . Full error what i am ...
2
votes
1answer
48 views

forest classification using SCP and QGIS

I am using QGIS 2.8.6 and I want to use SCP for forest classification from Landsat 8 oli. I have already installed the SPP plugin. What else do I need to install for operation of the software?
1
vote
0answers
35 views

Python error in go2streetview plugin

We have the go2streetview plugin installed in QGIS 2.8.6 Wien and when performing a search using this plugin, the following error appeared: An error has occured while executing Python code: ...
1
vote
1answer
32 views

QGIS - does a tool exist to calculate the (PostGIS) polygons containing a given point?

This is the converse of the analysis provided by the fTools plugin "Points in Polygon": Given a single point and a list of vector layer polygons (PostGIS in my specific case), is it possible to list ...
1
vote
0answers
22 views

qgis 2.8.1 date filter gives incorrect selection results

I am running QGIS 2.8.1 on ubuntu 14.04 x64. I applied a date filter to a shapefile using the layer Properties_General "Query Builder" button. So the query was "LOCATION START DATE" >= ...
2
votes
1answer
42 views

pyqgis - Editing a feature - Is it possible to set a listener?

is it possible to set a listener that is fired when a feature is edited? What I imagine is this: A geometry is edited (e.g. cut operation) then a listener is fired. This event gives me back the ...
2
votes
1answer
121 views

Installing Mxd2Qgs plugin in QGis 2.12

My purpose is to use the Mxd2Qgs plugin in order to be able to use mxd files with QGis. I have downloaded the Mxd2Qgs file and unzipped it. I put it in the folder: C:\Program Files\QGis ...
4
votes
0answers
65 views

QGIS Profile Tool shows no profile

I have installed and followed the process to produce an elevation profile from the Route Profile plug-in in QGIS, but for some reason I am getting no profile to appear. The grids are from OS ...
0
votes
0answers
11 views

How to access components on UIFileLayout?

I have followed How to programmatically associate a layer with a custom UI? and added successfully my custom *.ui file to the editing window in QGIS. Now I would like to add an action to my custom ...
1
vote
2answers
64 views

I can't find geotag and import photos plugin (QGIS plugin)

I am doing a project on mapping tourist attractions and would like to attach photos and videos to point locations. I have read about the Geotag and Import Photos plugin but I can't find it in my ...
1
vote
0answers
19 views

Customize QGIS Leaflet webpage [closed]

I created a webpage QGIS map using the Leaflet plugins, how to customize , put mouse over, then features will zoom automatically while you mouse on click on the map features, and also automatically ...
4
votes
1answer
81 views

QGIS Finding valves to turn off for water lines

I am wondering if there is a tool for QGIS that can do what I am about to describe. It might be in network analysis but I am not sure. I have used water gems but it does not do what I want it to do. ...
1
vote
0answers
38 views

QGIS GeoSearch Plugin Issue

We are trying to use the QGIS GeoSearch plugin and intermittently receive issues with it. We know what the cause is and we wondered whether anyone else experienced this issue and had a solution? We ...
2
votes
1answer
79 views

Mapping out 3D points with QGIS2threejs

I have some points I would like to map out in 3D. The points were gotten from a GPS module athat was attached to a Raspberry Pi. This is the settings I used before starting qgis2threejs: This was ...
3
votes
1answer
33 views

Disable QGis Tips Panel when application start

I am trying to disable the QGIS Tips Panel with config files. I use QGIS Lyon. - QGIS2.ini - And a custom file define with the parameter --customizationfile I know the user can click on "I've had ...
1
vote
0answers
53 views

Riparian corridor delineation in QGIS

I am trying to delineate the riparian corridors using GRASS in R. But I am having some issues. So is there a plugin in QGIS using which I can extract riparian corridors using the already available ...
1
vote
0answers
25 views

python handling case in address (lowercase,uppercase) [closed]

I'm working on a python QGIS plugin that takes address info from specific parcels and lists it. The data is in various cases and I'm having a hard time figuring out how to handle it. My data looks ...
1
vote
0answers
64 views

QPyNullVariant not recognized outside of QGIS

So here is a weird one. I'm getting an error about an operation involving a QPyNullVariant: TypeError: unsupported operand type(s) for *: 'QPyNullVariant' and 'float' So I wanted to put a check ...
1
vote
0answers
24 views

Use QgsRasterCalculator inside function

I'm relatively new to PyQGIS and I'm building a plugin to perform some calculations between raster layers. I was seeking to use the QgsRasterCalculator for some operations, however, the function that ...
2
votes
1answer
60 views

PyQGIS: Change attribute value doesn't work, results in NULL

I am writing a QGIS plugin, which at one point attempts to change several attribute values on a layer. However, in the end no changes are made. If I punch similar code into the built-in Python ...
2
votes
0answers
38 views

How to launch a QGIS core plugin from within a python plugin?

In this case I want to launch the Georeferencer core plugin from within a plugin I have written in python. But I don't understand how to interact with the core C++ plugin system from python, if that's ...
1
vote
0answers
21 views

Python error using Vterrain in qgis

Traceback (most recent call last): File "C:/Users/Haimwant/.qgis2/python/plugins\VTerrain\VTerrain.py", line 409, in run os.spawnl(os.P_NOWAIT, directory + "Enviro", ...
1
vote
1answer
55 views

How to use QGIS plugin “Rectangles, ovals digitizing tools”

I installed the Rectangles, ovals digitizing tools-plugin, found it on the toolbar, but it's inactive. I made a layer to which I want to add rectangles, it's visible and editable... The plugin bar is ...