Questions tagged [qgis-plugins]

Software plugins that add functionality to the QGIS package

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Error on deleting vector file written by QgsVectorFileWriter on Windows

I wrote a QGIS plugin which writes vector layers to vector files using PyQGIS method QgsVectorFileWriter.writeAsVectorFormatV3(). I then use different processing methods to clean geometries, etc. and ...
geraldo's user avatar
  • 960
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42 views

PyQGIS calculate the actual map dimensions on a dynamic layout

I'm writing a plugin to more easily create atlas coverage rectangles, which are to scale and can dynamically rotate from portrait to landscape orientation. I've also written in some code which can ...
Elfry's user avatar
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-1 votes
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32 views

QField plugin error

I'm using QGIS 3.32.1-Lima I've been prompted to upgrade plugins but now get this message : Couldn't load plugin 'qfieldsync' due to an error when calling its classFactory() method How can I fix ...
Madeleine Scott's user avatar
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13 views

Fixing IndexError from QGIS Weights of Evidence (WofE) plugin

I am using the QGIS plugin Weights of Evidence (WofE) plugin (https://github.com/chudasama-bijal/QGIS-Plugin-Weights-of-Evidence-Model). When I perform the 'Calculate Weights' step using the Evidence ...
JSAV's user avatar
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QWater Model - Analysis Interpretation

I want to ask about QWater plugin function in QGIS output, how can I understand on what the p and H stands for? Also what does the negative and positive value indicates to? Currently I just create ...
Hazim's user avatar
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12 views

Is it possible to export each separate soil layer from a stratigraphical 3d-model, using Midvatten and Qgis2threejs plugins?

I would like to create a 3d-stratigraphical modell in QGIS and thereafter separate each soil layer to stand alone shp-files. I believe that my best shot to do this is with the plugins Midvatten and ...
Niklas's user avatar
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-1 votes
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27 views

Error in QGIS with plugin Fast density analysis

Couldn't load plugin 'fast density analysis' due to an error when calling its classFactory(). I have read that several people had the same ploblem. I have done many of the answer on this website but ...
david 007's user avatar
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How to automate the code to synchronization postgis live layer on pyqgis?

I possess a dataset stored on a PostGIS server and aim to establish a fundamental synchronization mechanism through code. Although I've implemented the provided code for this purpose, when utilizing ...
Nihar Sahoo's user avatar
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52 views

QGIS Plugin development : Error when running the plugin code in the QGIS Python code editor

When running my main dowload_boku.py code in the Python QGIS code editor I get an error. While the plugin itself is working in QGIS. Anybody an idea? The error occurs without any adjustments to the ...
Daniel_Boku's user avatar
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The search bar of the Globe Buildir plugin gives no result?

As in the photo I'm clicking on the search button but nothing happens. The other globe centering selections are working well except "Geocoding". What might be the problem ? QGIS 3.28.15
BubuMonde's user avatar
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52 views

Missing Vector in QGIS toolbar

I have a laptop (TurboX flame u7 475) and I am using Endeavour OS. I am using the Software QGIS and I want to use the 'select by location' option in Vector but I cant find it. Is there any plugin I ...
Στάθης Κανετάκης's user avatar
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43 views

Least cost path plugin

For my Bachelor's thesis I try to calculate the least cost path inside a polygon. The Least cost path plugin is good for it https://plugins.qgis.org/plugins/leastcostpath/#plugin-versions. But I need ...
redhat's user avatar
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45 views

Python problem in QGIS

I'm trying to use climate data provided by "WordClim" for specific points in a shapefile. However, this error appears after the data has been run through the "Point Sampling Tool" ...
Gerson Rodrigues's user avatar
1 vote
0 answers
61 views

How to display Arabic names properly in QGIS 3.34?

I'm new to QGIS, I've downloaded some places names from QuickOSM plugin and everything was working fine. Also I have my encoding set as it should be. However, the text is not displaying correctly! It ...
Dreamer64's user avatar
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45 views

Problem joining two python scripts + QMessageBox + Chi-square + vector tools

I created a model that combines two vector layers and outputs a single layer with aggregated data, after that, is calculated chi-square test. I tried join both, but I can´t. Now, when it´s executed, ...
Tony Sampaio's user avatar
1 vote
3 answers
66 views

Create points based on field value from joined table QGIS

I am trying to create a point layer based on values from a field in a joined table. I have an Excel table (shown below) that contain individual rows of information but no x,y information, only the ...
Lon's user avatar
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2 votes
0 answers
59 views

QGIS plugin testing

I have written a few QGIS plugins and would like to set up some test suites. I have one plugin that has no UI and standard unittest works. But on my plugins with UI, initiated using the plugin builder ...
MortenSickel's user avatar
  • 3,686
1 vote
0 answers
37 views

how to add toolbar menu on pyqgis using custom class with current QgsInterface?

currently i want to add a qgis toolbar icon, which needs to be populated on the qgis window after certain process using custom class by overriding the current qgisinterface. But while running the code ...
Nihar Sahoo's user avatar
0 votes
1 answer
50 views

Lizmap "Configuration cannot be used"

I have set up Lizmap and QGIS Server on a Raspberry Pi 4 with Lizmap Web Client running on NGINX and QGIS Server on apache2 via NGINX reverse proxy. In the Lizmap Desktop Plugin GUI, I get "The ...
MoritzMoreira's user avatar
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35 views

QGIS2WEB Zoom to Selection

I'm working on a project and think that having a function that works similarly to how the 'Zoom to search address' function. That is, when using qgis2web Leaflet with the "Add address search"...
gissaga's user avatar
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24 views

How to add QGIS RasterToolbar function to PyQgis Plugin

I want to be able to use these following Raster Toolbarfunctions in my pyqgis plugin. The plugin has a separate QMainWindow. Let's say my window is w and raster layer is called layer. I want to be ...
Pritesh Jain's user avatar
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0 answers
27 views

Python Error with Co-registration Plugin

When using the Co-registration plugin in QGIS 3.22.3, I get the following error about phython when trying to use both the Automated local and global co-registration tools. Here is the error: "...
Nangy03's user avatar
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23 views

Log Execution Failed Viewshed (line 266,351,888,163)

I found difficulties when doing viewsheed and network intervisibility. The steps I have taken are: Download DEM from opentopograhy SRTM 30 Wrap projection DEM rasterized to UTM 84 The collection of ...
Reko's user avatar
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51 views

QGIS Plugin - How to import external libraries

I'm developing a plugin for QGIS that uses external libraries such as OSMnx, Shapely, and Scikit-learn. In particular, the last one is an optional dependency of OSMnx. At first I created a lib folder ...
Gianmarco's user avatar
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49 views

Google Maps analogue of QuickOSM / Overpass?

Is there a Google Maps analogue of QGIS's QuickOSM plugin? I would like to download data from Google Maps, similarly to how Overpass gets data from OSM, using a Google Maps API key.
Geremia's user avatar
  • 183
3 votes
0 answers
37 views

Can't get QGIS to keep my user-defined toolbar setup

I am working for an organization where we are trying to set up QGIS for all the employees so that it is as user-friendly as possible. I am trying to set up the toolbars and panels to show only the ...
Bah's user avatar
  • 31
1 vote
0 answers
50 views

is there any plugin in QGIS that show the train/plane route

I am currently working on QGIS for a project, and I want to map the route between two stadiums. I managed to create a route for the bus using the orstools plugin, but I can't manage to create a route ...
Leo_Miche's user avatar
1 vote
1 answer
70 views

Enable dragging for custom QgsAttributeTableView class PyQGIS

I have this custom class for adding an attribute table to my plugin: class CustomAttributeTableWidget(QWidget): def __init__(self, frame, layer, canvas): super().__init__(frame) # first clear ...
tbob's user avatar
  • 594
1 vote
0 answers
26 views

Error while importing PyQGIS plugin from ZIP on Ubuntu and MacOS: KeyError: 'use_stable_version'

I have encountered an error while trying to import a pyQGIS plugin that I developed on Ubuntu and MacOS that didn't affect on Windows. The error follows like this: An error occurred during execution ...
marc's user avatar
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42 views

Installing QGIS plugin from zipfile to custom menu not default menu location

How do I install the QGIS plugins from a zip file into the custom menu instead of into the default menu provided in the zip?
Jayant Grover's user avatar
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0 answers
24 views

Error when running LecoS Plugin in QGIS (Query raster values- Point): NameError: name 'QMessageBox' is not defined

This error message comes up when I try to run the LecoS Plugin in QGIS for querying landcover raster values at coordinate points of Bluetit birds on my map: QGIS version: 3.32.3-Lima QGIS code ...
Maria Chiara Horne's user avatar
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0 answers
43 views

QGIS SCP Error When Classifying Landsat 5

Good day! I am trying to classify a landsat 5 collection 2 level 2 image of my study area, but when I start the classification process after selecting the ROIs an error occurs. UnboundLocalError: ...
ccquinon's user avatar
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0 answers
30 views

Breakline for contour

I am trying to generate a break line for generating contour. I have surveyed point data. I am using the river banks/HFl points as breakines. I created a new shape file and drew line along the HFl ...
Usha's user avatar
  • 137
1 vote
1 answer
60 views

Model Designer - Available Algorithms

Is it possible to add an algorithm from the Processing Toolbox to the list of available algorithms in the Model Designer? Looking at the question HERE, I see that they are in the designer and are ...
user231744's user avatar
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0 answers
56 views

Chainage points along 3D polyline preserving elevation

How can I extract chainage points along 3D polylines doing a full 3D interpolation of the point along the line? For example, returning a pointZ shapefile where the elevation of each point along the ...
jberrio's user avatar
  • 796
1 vote
1 answer
78 views

Showing feature count when exporting map with qgis2web Plugin

I am trying to include the feature count when using the qgis2web PLugin. I have a point layer and I simply want to show the number of features for each specific field. This is what I see in the layer ...
Bill Sostrich's user avatar
0 votes
0 answers
22 views

CrossTabManagerError appears in creating changes map while using MOLUSCE Plugin in QGIS

I'm using QGIS 2.16.0 Wein and the Plugin MOLUSCE(ver. 3. 0. 13). Now I'm trying to create a change map, but get the following error. Traceback (most recent call last): File "C:/...
Diego Montesclaros's user avatar
2 votes
0 answers
78 views

Change layers names in existing layout legend only

I am currently working on a QGIS plugin with QGIS version 3.34.0-Prizren and Python version 3.9.5. I have a QGIS project containing several layers (the sources are tables from a Postgre database) ...
theonewhodidnotknow's user avatar
0 votes
0 answers
44 views

Empty output when creating QTiles in QGIS

I am trying to follow the directions to create a base map with QTiles in QGIS. Here is the link with instructions for reference: https://astuntechnology.github.io/qgis-tutorials/html/en/docs/...
datatitanic's user avatar
0 votes
0 answers
22 views

Remove network "GET http" requests warning message from QGIS

I would like to remove the source of this "GET http" request that I am seeing in QGIS that's throwing an HTTP fetch error but I don't know much about the source of these types of requests. ...
Jay's user avatar
  • 43
0 votes
0 answers
29 views

Problem Polygon Line Intersection - SAGA QGIS

I have a ShapeFile with a series of polygons (ex: the yellow line is the common boundary between 2 polygons). I have another ShapeFile that contains a line (Pink) which crosses the limit line of these ...
Macnamara's user avatar
2 votes
1 answer
57 views

Self-made attribute mask in QGIS and current_value() function

I'm working on a QGIS-Project and I tried to design my own formmask/attributemask with QT Designer. I use QGIS 3.28.12 Most of the Mask works perfectly fine, except for two things. The second of which ...
geofreak's user avatar
  • 121
1 vote
1 answer
96 views

Setting dropdown on feature attribute form using plugin

I have built a plugin (PyQGIS) where once user login, it will display the map with layer retrieved from database. Let say, layer named lot_k is enabled for editing then new polygon is added for this ...
AJ 88's user avatar
  • 13
2 votes
1 answer
66 views

Implementing self-made attribute mask doubles combo boxes in QGIS

I'm working on a QGIS-Project and I tried to design my own formmask/attributemask with QT Designer. I use QGIS 3.28.12 Most of the Mask works perfectly fine, except for two things. One of which I'm ...
geofreak's user avatar
  • 121
1 vote
0 answers
42 views

Reuse Extent menu from processing tools

Actually I'm using QgsExtentGroupBox in my plugin and it works fine. Now I want to make the GUI more compact and therefor I want to implement the extent menu a lot of processing tools are using: I ...
geraldo's user avatar
  • 960
0 votes
0 answers
57 views

Lizmap very very slow loading data

Can someone tell me what is wrong when lizmap is loading data. To load the data it takes about 150 seconds to load. I found where it takes a long time... Or it does not load at all. If it not loads ...
NvBgm's user avatar
  • 131
5 votes
1 answer
133 views

Distribute a function for QGIS

I have written an expression to use in the field calculator that is to be used by a number of other users. In Providing QGIS expression within a plugin I was told how to distribute an expression (or a ...
MortenSickel's user avatar
  • 3,686
1 vote
0 answers
273 views

Semi-Automatic Classification Plugin Problem - No band encountered

I am new to the Semi-Automatic Classification Plugin. I am currently trying to produce Land Surface Temperature maps using satellite images (Landsat8) from Earth Explorer. I have downloaded the B10, ...
Izzy's user avatar
  • 11
1 vote
0 answers
47 views

go2streetview error

I believe I have done something wrong on my PC - be it deleting the file or putting it in another folder, because since the middle of last week I have been trying to use the go2streetview plugin on ...
rebecca rodrigues's user avatar
0 votes
0 answers
143 views

Semi-Automatic Classification Plugin Error 6 Bands Missing

Whilst getting other people to run an unsupervised (ISODATA) classification in QGIS using the SCP (semi-automatic classification) plugin, several people obtained an error message labeled 'error 6: ...
Sharon Mandipe's user avatar

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