Questions tagged [qgis-plugins]

Software plugins that add functionality to the QGIS package

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15 views

PyQGIS-Code in Plugin doesn't store features completely in memory layer

Within a QGIS plugin I download data which is then converted into a list of QgsFeatures. My way of storing for a long time was to use addFeatures on the provider object, but now in QGIS 3.16 LTR, not ...
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14 views

QGIS Offline Editing Plugin scrambles layer structure on synchronization

at work our QGis database is stored in a shared location. I tried using the Offline Editing Plugin in QGis to store a copy on my local hard drive. When I tried to synchronize the offline project with ...
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1answer
42 views

QGIS: Plugin, that can import a textfile, to open a QGIS-project

Is there a plugin for QGIS that is able to do the following steps?? QGIS imports an external text-file, opens the project and zooms to the (only) polygon that contains „xyz“ in „field1“. the external ...
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2answers
23 views

How to transform .qml/.sld in .xml with QGIS

I have a bunch of .qml and .sld files. I want to convert them to .xml, but I still havent found a proper way to do it. Does anyone know any plugin or website that I can do this conversion?
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1answer
78 views
+50

Open plugin with another plugin

I would like to open a plugin with the help of another plugin. Is it possible, if I want to switch the workflow of different plugins one after the other, that when I click the submit button of one ...
2
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0answers
49 views

Using ctypes for QGIS Python plugin to bind DLL

I'm trying to build a Python plugin in QGIS which does some raster image processing. The processing itself is done via a .dll. Hence, I'd like to bind it with ctypes. First of all: is it possible to ...
4
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1answer
52 views

QGIS - Python Action Error

I am using QGIS 3.18.1-Zürich and I am trying to create a Python action. Although I have installed the required packages, I get an error as shown below. Traceback (most recent call last):   File "...
2
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1answer
23 views

Get size of a QgsLayoutItemPage in PyQGIS

I work on QGIS plugin in python, in my plugin I load several print layout in a project print layout manager. These print layouts are either A4 or A3. I would like to get the size value (A4 or A3) of ...
2
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1answer
42 views

Adding a raster layer on map canvas in PyQGIS

canvas = QgsMapCanvas() canvas.show() canvas.setCanvasColor(Qt.white) canvas.enableAntiAliasing(True) vlayer = QgsVectorLayer('testdata/airports.shp', "Airports layer", "ogr") ...
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0answers
35 views

Taking picture from QGIS Plugin using PyQt [closed]

I have a button in a Plugin to take a photo and relate it with a feature of a layer in QGIS. My aim is to select a feature, open a camera view (viewfinder), take a photo and save it with the feature ...
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0answers
36 views

QGIS: Python numpy error when installing plugin

I want to install the plugin "UMEP", but it results in this error: An error has occurred while executing Python code: RuntimeError: module compiled against API version 0xe but this version ...
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0answers
16 views

QGIS clipping OpenStreetMap but still being able to run functions such as ORS Tools on the layer [duplicate]

I have struggled to find a solution to be able to clip an OpenStreetMap (OSM) raster layer but still run functions using plugins such as ORS Tools. I would like to clip OSM with an overlaying vector ...
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0answers
14 views

Remove a legend entry if the layer is not in the composer map PyQGIS [duplicate]

I am working on a QGIS plugin in python. In this plugin I load two layers. These layers are polygons which represent administrative boundaries. My plugin load also several print layout in a Qgis ...
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2answers
47 views

Remove a legend entry if the layer is not in the composer map

I am working on a QGIS plugin in python. In this plugin I load two layers. These layers are polygons which represent administrative boundaries. My plugin load also several print layout in a Qgis ...
0
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1answer
52 views

Finding point coordinate using Python in QGIS [closed]

How can I find point coordinate in Python vector layer in QGIS? I need to define xy to a variable.
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2answers
94 views

Looking for a way to create dynamically updating point layers in QGIS (linked to spreadsheet)

I'm looking for a way to create a dynamic link between a QGIS point layer and a spreadsheet that contains point coordinates. For example, I have a spreadsheet of location points for a species of ...
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0answers
26 views

Appending data to SQL table in QGIS by matching field names

In QGIS 3+, is there a plugin that allows you append data from one feature into another without needing to move columns around, and map columns automatically based on field name? I want to merge ...
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0answers
7 views

MOLUSCE plugin issue- getting same LULC raster for all simulation

I'm using MOLUSCE plugin in QGIS to predict Land Use Land Cover (LULC) for future. LULC data for 2005 and 2010 is given as initial and final raster along with spatial variables DEM, distance from road,...
2
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1answer
22 views

QGIS Viewshed plugin not in any menu

Running QGIS 3.18.2-Zürich on Linux Mint 20.1 Ulyssa. Just tried to add the Viewshed/Visibility Analysis plugin and the Plugin Manager shows it as installed, but it's not in the plugin menu (or any ...
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26 views

What geospatial table and indexing functions are suitable for a borehole database design for large volume of serialised constant increment data?

Pretty common use case I suspect, but want to make sure I optimise from the get go. PostGIS I'm suspecting is the weapon of choice, and one way I'll be interrogating data is QGIS. Large part of data ...
2
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1answer
38 views

Is there a way to share a QGIS plugin for some users, not every QGIS users?

I need to make a PyQGIS plugin for a client, but we have some specific connection to a database. I did a plugin before only for me so I used QGIS plugin reloader. Now I need it to be on other desktop. ...
2
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1answer
62 views

Adding dropdown menu for QGIS Plugin to the toolbar

I have set some actions for my plugin and now I want to group all of them in a dropdown menu as one of the image, which is from another plugin. I've been struggling but I can't find a way to do it ...
2
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2answers
42 views

Remove LayoutItemLegend entry PyQGIS

I work on QGIS Plugin in python. This plugin load several Print layout in a QGIS project. These print layout contain a legend. I would like to be able to remove a layer from the composer legend ...
1
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1answer
19 views

Seeking plugin like NetCDF Browser for QGIS 3.0 and above

Is there a plugin that fulfills the same function as NetCDF Browser (i.e. to browse multi-variable and multi-dimensional NetCDF files) but is available for QGIS versions 3.0 and above?
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0answers
47 views

Semi-Automatic Classification Plugin error

I recently installed QGIS 3.18 in my Windows system. But when I installed "Semi-Automatic Classification Plugin", this error occured: Semi-Automatic Classification Plugin: Error. Check ...
1
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1answer
37 views

Set extent of Layout Item Map

I work on a QGIS Plugin in python. This plugin import in QGIS project several print layout (A4/A3/Landscape/Portait format) from a directoty of my laptop to the layout manager. The plugin add also a ...
1
vote
1answer
44 views

Modifying SpreadsheetLayers Plugin

I'm trying to make a small change in this QGIS plugin (https://github.com/camptocamp/QGIS-SpreadSheetLayers), but I did not succeed. I have an ods spreadsheet in which the coordinates can come in ...
2
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1answer
88 views

How to Update Plugin Installed Manually (Zip File)

I've created a QGIS plugin (written in Python) that users install it by its zip file. But I have problem with the updating system. Whenever I release a new version I have to create a new zip file and ...
4
votes
1answer
67 views

Getting X,Y coordinate with mouse click on vertex of line feature using PyQGIS

How do I get X,Y coordinate with mouse click with enabling snapping so that only line's vertex point coordinates will be selected? By using following code I can get latitude longitude of clicked ...
0
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1answer
26 views

Why is the asc file associated with Fusion CanopyModel different from the GeoTiff I create?

I'm working in Python (using PyQGIS) to create a digital surface model from .las data. When I use fusion:canopymodel it creates a .dtm file, and a .asc file. I then convert the .dtm file to .tiff ...
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0answers
26 views

Installing plugin for Time Manage Error Manage

I've tried installing different versions and have now reinstalled both Python and QGIS to see if that made a difference however, I still can't resolve the problem. This is the error message I still ...
0
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0answers
24 views

Importing points within a series of non-geolocated pdf maps and Excel data

I have a series of maps that have been drawn on by hand (points and areas) that have been given to me as PDFs, along with a series of interview PDFs explaining what those points and areas are (there ...
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0answers
35 views

QGIS 3.16 and newer not commiting merge when string exceeds 255

I have been developing a QGIS plugin with PyQt5 in QGIS 3.10 for a while now. The plugin gets layers from an api, displaying features of POINT, LINESTRING or POLYGON (wtk) in layers. When the wtk-...
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0answers
12 views

Using dropdowns in Openoise plugin

I've been using the Openoise plugin successfully for several years. I haven't used it for the past 3-4 months, but when I used it this week the dropdown combo boxes in the "Calculate noise levels&...
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0answers
63 views

Problem with the alexbruy repository with plugins for QGIS

I have tried to install some of the QGIS plugins in the alexbruy repository https://plugins.bruy.me/plugins/plugins.xml, but for each plugin get the following message: Plugin installation failed: ...
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0answers
31 views

QGIS find steepest path on a DEM [Path of a drop of water]

Is there an algorithm or plugin in QGIS to find the steepest path on a DEM given a point (the path followed by a drop of water)?
3
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0answers
45 views

Plugin development for QGIS 3.16 (Windows): how to handle dependencies on external packages?

I've been working on a plugin for use with QGIS 3.16. I have developed it locally and I want to now deploy it so others can use it. The problem or rather question I'm having is: How do I deal with ...
7
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1answer
85 views

Advanced search terms in the Semi-automatic Classification plugin

Background: At QGIS 3.18.1, I can successfully download Sentinel Level-1C imagery by entering the granule that covers my area of interest (10UGU) in the Advanced search box. Now I would like to ...
0
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1answer
37 views

Python Error at QGIS startup

I am unable to solve the following python error in the General tab of the Log Messages when I startup QGIS: 2021-03-29T09:19:03 WARNING Traceback (most recent call last): File "C:/PROGRA~1/...
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0answers
10 views

Swath profile plugin

im trying to install the toolbox Swath profile, but the program send me an error "NameError: name 'Line_shapefile' is not defined". How can i install it?
2
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2answers
108 views

Zoom in layer with PyQGIS

I am working on creating a plugin on QGIS 3.10. This plugin loads two layers in my QGIS project. I would like to zoom in the layer extent of AEE_layer. Unfortunately despite the code that specifies to ...
3
votes
1answer
61 views

PyQGIS `iface` object for layer event handling in QGIS plugin testing

I'm writing a functional test for the QGIS plugin I'm developing. There's a button in the plugin that is enabled only if there is a valid vector layer present. The thing I'm bumping into is the layer ...
1
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1answer
28 views

How can I calculate the distance between multiple points in a network?

I have multiple points on multiple lines in a network and I need to know the length between these points along the network. I need an OD matrix, like the QNEAT3 distance matrices but for the distance ...
2
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1answer
51 views

QgsTask.fromFunction not running on_finished method unless an exception is raised in the task

I'm trying to create a task to process some geometry intersections in a QGIS plugin I've created. I'm following 15.2.2 Task from function from the PyQgis Developer cook book exactly as its shown. I ...
4
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2answers
71 views

Getting directory path from QgsFileWidget using PyQGIS

I use Plugin Builder and Qt Designer to create a plugin on QGIS. I would like to export a PDF file with results of processing. I try to use QgsFileWidget, to get the directory, but I cannot connect ...
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0answers
35 views

RS & GIS (QGIS Plugin) not producing Land Surface Temperature Layer

Recently I downloaded this plugin as it has demonstrated capability to produce Land Surface Temperature Calculated layer. I tested this plugin using the Landsat 8 contents straight from USGS Earth ...
0
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0answers
28 views

QgsExtentGroupBox draw on canvas causing odd behaviour

I am trying to make the most of the QgsExtentGroupBox from the Qt designer QGIS widgets in a plugin I'm building (using pluginbuilder 3.2.1, and QGIS 3.16 builtin Python 3.7 and Qt Designer). ...
2
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1answer
17 views

Quickmapservices plugin not showing Google or Bing layers

Ive installed QGIS 3.10.14 on a new windows machine and then the Quickmapservices plugin. However, when I go to the menu, it doesn't show google or bing options. Were they discontinued along the way? ...
0
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0answers
22 views

Is it possible to add an export button to Qgis2Web web interface after filtering certain layers?

I created a webmap with pointdata using Qgis2Web. There are a few filters available, and I would like to give users the opportunity to export the filtered points to for example a CSV or XLSX. Is that ...
0
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1answer
35 views

Install qgis-server-font-loader Plugin on QGIS 3.4.8 (Windows Server 2016)

I'm trying to install this plugin: https://github.com/avinet/qgis-server-font-loader. First I copied the Zip-folder in C:\OSGeo4W64\apps\qgis-ltr\plugins then I opened QGIS and installed the plugin ...

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