Questions tagged [qgis-plugins]

Software plugins that add functionality to the QGIS package

533 questions with no upvoted or accepted answers
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39 views

Generation of documentation for QGIS plugin

I've written rather much docstrings etc. in my QGIS plugin, mostly in order to keep track of the functions for myself, but it would be nice to have some more documentation, like a sphinx page. I ...
2
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2answers
189 views

QGIS plugin development environment variables?

I want to develop a plugin gor QGIS3. I downloaded Osgeo4w network installer 64Bit. I created a bat file as following for set my environment variables; @echo off call "%~dp0\o4w_env.bat" call ...
2
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0answers
118 views

QGIS Export Webmap with QGIS2Web only using Python Console?

I want to automatically export my QGIS map to Webmap using only pyQGIS commands. By now I just know how to run the plugin with commands on python console: import qgis.utils qgis2web = qgis.utils....
2
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0answers
66 views

Redrawing raster layer after file changed in QGIS?

I'm trying to find a way to redraw a raster layer after the original source file has been changed in QGIS 3.2+. However, it redraws only sometimes (~10%), which means there is some deep caching that I ...
2
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0answers
21 views

Sending data between QGIS and other programs in real time

I would like to be able to grab information about QGIS users' interactions and send things like cursor position and button events to a separate program running concurrently in MacOS. With GRASS tools ...
2
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0answers
106 views

Orthophoto land use classification in QGIS

I am using a CIR orthophoto and tried to make a land use classification with the use of Semi-Automatic Classification Plugin in QGIS. I work in QGIS 3.2 but I get errors that my ROI are too small (...
2
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0answers
85 views

Combining different bands

I have downloaded Sentinel 2 and Aster images with the SCP in QGIS. When I try to build a raster or create a bandset using different band combinations, the images turn out black. When I look at the ...
2
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0answers
24 views

How to stick plugin widgets for ever to its own position?

Every time I'm starting Qgis my custom widget disappearing. Is there a way to stick plugin to keep it all the time at the same place in the screen layout ?
2
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0answers
133 views

How to use QGIS plugins functionality in standalone application

I'm new to QGIS 3 Library to develop standalone map application in qt4, C++ language. I was wondering if there is any way that I can use QGIS plugins such as Advanced viewshed analysis, Contour plugin ...
2
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0answers
68 views

qgis: can't find eclipse pydev path using remote debugger in linux enviroment

I'm trying to configure pydev and eclipse with qgis for remote debug. Everything worked fine in eclipse and i can start the debug server. The problem is that Remote debugger plugin requires a pydev ...
2
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0answers
75 views

No attribute table or values in QGIS 3.2 Grass toolbox plugin output files

Using the Grass toolbox within QGIS 3.2 (and previously 3.0) when I import any files and overlay them, then use the "View Output" option (button), the resulting file has the correct polygon areas ...
2
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0answers
63 views

QGIS: ideas on how to show unsupported geometry data type

I am working on a university project and I need to visualize data from PostgreSQL. The data type is new, geometry with a time attached to it, which it is available because of extension in PostgreSQL. ...
2
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0answers
58 views

On-the-fly zonal statistics in QGIS

I would like to know if there is a plugin/method in QGIS to calculate zonal statistics (mean, median, range, max, min etc.) of a raster file, corresponding to a polygon that I draw/highlight in QGIS. ...
2
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0answers
536 views

QGIS 3.0 not able to load processing plugin

I solved issues in the past opening my vector menu options with my processing plugin (in version 2.16), but recently upgraded my computer to a Mac OS 10.13 and my QGIS to version 3.0.1. My vector menu ...
2
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0answers
92 views

Updating repository XML after deploying QGIS plugin

When I deploy my plugin to the qgis repository on my server, I usually do: pb_tool zip scp plugin.zip user@ip:/location ssh user@ip nano repository.xml # and change stuff Last step is what this ...
2
votes
2answers
661 views

QGIS go2streetview Browser display problem

In QGIS the go2streetview Plugin is there ready to go - the icon displays and the window asks you to click on map and drag cursor to display Google Street View. When this is carried out nothing ...
2
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0answers
69 views

Exporting QGIS clipped file to Civil 3D

I have been trying to solve the problem to get a small portion of a larger GIS map into my AutoCAD Civil 3D for a site plan. I currently obtained a large map from the county as a .gdb file and I have ...
2
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0answers
48 views

Enable multiple GDAL threads for qgis2web?

I'm using qgis2web plugin for a project that has a raster base map and many layers. It works well but exporting is slow, taking 16 minutes. gdalwarp.exe seems to use only one thread (the CPU has eight)...
2
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0answers
60 views

Assigning Elevation data from one point shapefile to another point shapefile in QGIS

I am working with QGIS. I have a point shapefile with all my elevation data and a point shapefile with the coordinates for my project. I would like to assign the elevations from the elevation data to ...
2
votes
0answers
333 views

Qgis Profile Tool plugin with wrong units

I am using qgis 2.18. I installed the plugin Profile Tool and i am trying to do a terrain profile from a DEM. I am working in projection WGS 84. The profile i made with that plugin doesn't have the ...
2
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0answers
47 views

Creating multiple users for postgis db created with qgiscloud plugin?

I have created a PostGIS database using qgiscloud plugin. I would like to give access to 3 more users (usernames and associated passwords) in order for them to update 3 specific layers only, without ...
2
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0answers
120 views

Correct, full and unambigous data source of layer in QGIS

I'm currently developing a plugin (python, pyqt4) for QGIS 2.10+. Normal data source which I could use should contain complete path to the loaded layer. For example, my Alaska layer when uploaded ...
2
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0answers
226 views

Google Maps (street, physical, satellite) layers stay fixed on zoom/pan in QGIS

I'm using QGIS 1.8 and Openlayers plugin 1.1.0 to work with Google Maps as basemap (I need to use this old versions for both QGIS and plugin). All was working OK, but from some days Google Maps (...
2
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0answers
102 views

How to get Coordinate axis (x,y) parallel to orientation in QGIS?

I am using QGIS 2.14.11. I have a map with drains as you can see on the map. I would like the coordinate (x,y) of each point but my origin point (at the corner just below in red on the map) will be (0,...
2
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0answers
233 views

Unable to activate GDAL Georeferencer in QGIS

I have installed QGIS 2.14 on my MacBook Air, but am unable to activate the "Georeferencer GDAL" plugin. When I open the "Manage and Install Plugins" dialog, the Georeferencer GDAL plugin is listed ...
2
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0answers
386 views

Move tool feature in digitizing toolbar doesn't work/ not available

I can't move any polygons and the layer is in the edit mode, but the move feature button in the digitizing toolbar doesn't appear to be enabled to click it.
2
votes
0answers
134 views

Finding lowest elevation point over borders of Polygon

I am new to QGIS and I have a polygon shapefile and a raster DEM file. I want to find the lowest elevation point over boundaries of each polygon in QGIS. Can anyone please tell me the way to do this? ...
2
votes
0answers
1k views

plugin installation failed from own repo

I have developed some plugins for use in our company only. And for the purpose of installing them and keeping them up to date, I created a repo and the users who need our plugins just add this repo to ...
2
votes
0answers
104 views

Find percentage overlap (by category) between census tract polygons and circular polygons in QGIS?

Context This is my second attempt to post this question since the answers to my first question were not as useful as I had hoped. The link to my first question is here: first question attempt I am ...
2
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0answers
69 views

effective debugging my QGIS c++ plugin

For debugging my QGIS-plugins in Visual Studio 2008 I have to start QGIS and attach the process (with Ctrl-P) to my debugger in VS. This is because the plugin is a dll and has to be loaded during QGIS ...
2
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0answers
121 views

Error While Fetching Data From Postgres In Qgis Plugin

i am trying to fetch data from postgres in qgis and the connection code is working fine in python console but it gives error when i apply that code to my plugin like.. AttributeError: 'NoneType' ...
2
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0answers
226 views

QGIS Profile Tool dependencies

I'm trying to install the Profile Tool on QGIS 2.14 (newest version present in ubuntugis ppa) and i get this error:'No module named PyQt.QtCore' I have installed the following packages:python3-pyqt4,...
2
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0answers
502 views

Profiletool export error “global name 'os' is not defined”

I am using QGIS 2.18.5 and the Profiletool 4.0.2. plugin I tried to save my profile to an .png file and this resulted with an error: Traceback (most recent call last): File "C:/Users/b/.qgis2/python/...
2
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0answers
110 views

What causes 'syntax error, unexpect $end' on iface.showAttributeTable?

I have a plugin that loads some tables on another dockwidget. On QGIS 2.8 that's all ok, but on QGIS 2.14 the tables is loaded as layer correctly on a new dockwidget but when I request to open the ...
2
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0answers
226 views

How to close/remove QGIS welcome page (recent projects) for plugins?

I have a python plugin that completely overwrites the GUI in QGIS. Now I'm trying to upgrade from the previous LTS version to 2.14, but the new feature (Recent Projects) shines through as displayed in ...
2
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0answers
197 views

How to properly clean up when unloading plugin

I'm developing a custom plugin. I'm having issues while debugging using the Plugin Reloader, but the problem is the same when loading and unloading my plugin. The issue is that scripts seem to keep ...
2
votes
0answers
697 views

QGIS version 2.18.1 "Python error: Couldn't load plugin 'processing'

I am running QGIS version 2.18.1 (overnight build) on a Windows 7 64-bit OS. There appears to be an issue loading my processing plugins, which is obviously an issue when working with GIS. I have ...
2
votes
0answers
243 views

Automate print composition in QGIS

My goal is it to write a plugin, that automates the print composition. The idea is that you choose the scale and the paper size and based on that a map with legend, north arrow and block title is ...
2
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0answers
245 views

QGIS Multi-Basin Delineation (Pour-Point) Hydrology

I'm working on a QGIS plugin and struggling to find some existing QGIS processing functionally I could leverage. I need to replicate multi-basin delineation using pre-defined pour points. Specifically,...
2
votes
0answers
109 views

Twitter2QGIS plugin error “EOF occurred in violation of protocol”

I installed twitter2qgis plugin and also tweepy through pip manually and then, I put access token etc value from my developer twitter account and when I apply I get this error: And this is written in ...
2
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0answers
266 views

QGIS crashes when updating / deleting / starting the Semi-Automatic Classification Plugin

My QGIS (2.18) crashes when updating / deleting / starting / activating / deactivating the Semi-Automatic Classification Plug-in without any log-massage. QGIS startup massage is: Semi-Automatic ...
2
votes
0answers
139 views

Importing multiple raster images in PostGIS

I have several raster images for one area and I am trying to import these multiple raster images in PostGIS. Is there a efficient way to import these raster images at once?
2
votes
0answers
55 views

Directed Sampling in QGIS

I am trying to determine if anyone has attempted/done directed sampling in any field. I am having a hard time trying to determine the best way to do this, but I'll try to explain. Given a yield map ...
2
votes
0answers
551 views

Error installing resource from QGIS Resource Sharing Plugin

I have installed the QGIS Resource Sharing plugin in QGIS. When I try to install the Mapbox's Maki Icons resource or OpenStreetMap style resource I get the following error message: Error: urlopen ...
2
votes
0answers
96 views

Combining multiple custom QGIS plugins into one plugin?

I have built multiple individual QGIS plugins for my team using the QGIS Python plugin builder. Actually, my plugins are hosted on a private repository I made and the users can install them ...
2
votes
0answers
684 views

qgis crash using QThread in a plugin script

I recently wrote a python script that works with raster data and makes some time-consuming operations. My script uses QThread to update a QList and a QProgressBar and everithing works fine if I run ...
2
votes
0answers
191 views

Heatmap plugin crashing/ No longer available for QGIS 2.16?

I am a Windows user, quite new to QGIS, and I just updated my QGIS to 2.16 (from 2.12 Lyon). I was previously able to create a heatmap overtop a basemap, but my heatmap plugin now crashes the program ...
2
votes
0answers
710 views

Click to copy coordinates From QGIS

I have a created some point data using CRS ESPG:4326 and added Google base map from OpenLayers plugin. While adding the Google Maps imagery I have changed CRS to ESPG:3857 in project properties. ...
2
votes
0answers
408 views

Why PyQt http request works in QGIS console, but not in a plugin?

I want to send http request in a QGIS plugin using PyQt. I found in this post working syntaxes to do so, but something odd occurs. The script given in the question works both in the console and in my ...
2
votes
0answers
174 views

Load a specific spatial data from a postGIS table

A single postGIS table contains multiple type of spatial data(example: Linestring,Polygon,etc.,). How to load a specific spatial data from PostGIS table into QGIS by using pyqgis? Sample code snippet ...