Questions tagged [qgis-plugins]

Software plugins that add functionality to the QGIS package

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14 views

Cloud Masking plugin crashing QGIS

When trying the fmask algorithm, QGIS crashes. This does not happen when using the blue band algorithm. I have used some versions but the result is the same. I do not know if the problem is due to a ...
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0answers
15 views

Using “Crtl + C” to copy an item from QTableWidget in QGIS, but get all attributes from a feature

I am using PyQGIS to develop a table as a QGIS 3.4 plugin. The table is created by QTableWidget and looks good. The weird thing is when I try to copy (Ctrl+C keyboard shortcut) an item in the table, ...
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11 views

Can we use QGIS for Image Annotation?

Can we use QGIS for Image Annotation? Box or Polygon Labelling? Can someone suggest any tool for the same? The file format is tiff. I aim to find out copper sites in multiband tiff images. I have used ...
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1answer
33 views

How to Group Parameters in PyQGIS Processing Plugin

The PyQGIS Processing Plugin I'm writing has a lot of parameters, most of which are advanced and won't be necessary for most users. I'm concerned that a user will be confused if they see all these ...
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26 views

Is a newer version of FlowMapper available? [closed]

I'm trying to use FlowMapper for QGIS. However, upon installing the plugin I get the following error message: My version of QGIS is 3.10.9, and this version of FlowMapper is apparently designed for ...
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1answer
37 views

Selecting a point and auto selecting a polygon in another layer in QGIS 3.14

I'm using QGIS 3.14 Pi and here's my scenario. I have a layer of points and each points contain a numerical value code, let's say it's 123. There may be multiple points with the same code value. In ...
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0answers
13 views

Filter Feature Service layer by current extent [closed]

I'm trying to build a plugin to quickly add two feature server layers to QGIS. These are soil maps that are built up from a crapton of polygons. I'd like to be able add the layers from a python plugin ...
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1answer
31 views

Splitting feature into layers which are overlapped in same layer in QGIS

My script needs to select each feature in layer. While selecting features I found some of feature are overlapped. Feature can be selected but cannot highlight in map canvas. Is there any plugin or ...
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26 views

Error while exporting data through Mappia Publisher in QGIS 3.14

I installed Mappia Publisher in QGIS 3.14 and try to share some data. It works until almost the end. It gives me a Python error. I do not know why. Also, it takes me almost two hours to run. Finished ...
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1answer
31 views

Re-ordering bar chart from Data Plotly in QGIS 3.14.16

I have successfully created a bar chart using Data Plotly within QGIS 3.14.16. The x axis consists of 17 place names (NAME) and the Y axis shows the value (VALUE IN £P) of one particular lease at each ...
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1answer
38 views

Detect yellow spots on an image [closed]

I have a big raster image (12 GB) and I would like to detect yellow stains on it. I did try the Zonal Statistics but it is almost impossible to find the right parameters in order to detect the stain. ...
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26 views

Exporting with QPackage or QConsolidate

I know there is a similar question, but it might be dated, and didn't completely answer my question. I know of two plugins to export your QGis project, QPackage and QConsolidate. I'm not very familiar ...
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10 views

Population data at OpenRouteService QGIS Plugin

Does anyone have any experience of how reliable the accessibility analysis and the number of inhabitants in the catchment areas are for German cities?
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0answers
22 views

How do you update files from OSMDownloader?

After adding the .osm file to your project using the OSMDownloader plugin can the labels or shapes be updated? In other words, when an edit is made in OpenStreetMap and the edit happens to be in your ...
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24 views

Couldn't open Manage and Install plugin for QGIS 3.14.16 Pi

This might be quite straightforward to resolve but as a beginner, I am unable to figure out what to do. Opening Manage and Install Plugins... or most other plugins such as Mergin returns an error ...
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1answer
45 views

Security of data when using the qgis2web plugin

While using Qgis2Web Plugin data will be save in any of cloud platform or Qgis Server ? In short usage of this plugin is safe or not ?
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1answer
142 views

Is there an alternative to qgis2web? [closed]

My qgis2web Plugin is not working, as I receive the error as you see below: Basically, it's able to display layers in Leaflet, but not correctly enough. The problem is similar to these: QGIS2Web won&...
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22 views

What is the best geocoding Plugin to use in QGIS? [closed]

I have to transfer around 1200 points into my GIS project. Therefore I have given a .csv-file with city names (partly missspelled or unidentifiable). All of the locations are in Germany (as I read ...
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1answer
33 views

QGIS 2.6.1 plugin repository, is it broken?

In QGIS 2.6.1 the plugin repository is unavailable. The URL is: http://plugins.qgis.org/plugins/plugins.xml Is there an alternative plugin repository, or a way to resolve it? Have tried two different ...
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11 views

QGIS plugin development setup for MacOS

I have seen that QGIS upgraded its MacOS packaging in 2019. I am trying to setup an environment for QGIS plugin development and haven't seen any resources since then (and very little since QGIS 3 was ...
2
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0answers
40 views

How to detect snapping event while editing layer in QGIS? (For custom topological control)

QGIS 3.14 - plugin. I have a requirement to draw lines which must start and end snapped to point geometries of another layer. I need to be able to detect a vertex snap event while drawing linear ...
1
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1answer
54 views

Authentification failed when using SentinelHub Plugin in QGIS

I downloaded SentinelHub v2 plugin into QGIS 3.14. When I want to log in with my ID (from SentinelHub / Configuration Utility / ID) it says "Authentification failed, check your credentials"....
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2answers
34 views

Auto Trace Installation Error in QGIS 3.8

My QGIS 3.8 doesn't support Auto Trace 1.0.6 or 1.0.7. My pc has a 64bit Windows 10. How can I solve it?
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0answers
247 views

Remove reference to raster layer object PyQGIS

I am developing a plugin to load a set of raster files on QGIS. When there are a large number of files to be loaded, the main UI is freeze. So I use QgsTask to move the creation of raster layers to a ...
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4answers
774 views

Quickly review one by one all the features in a dataset in QGIS

I have about 400 features in a point dataset. I would like to (quickly) visually check their locations one by one on the map. For now, I open the attribute table alongside the map. I select the first ...
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1answer
32 views

Saving each feature in PNG format along with map canvas in certain scale using PyQGIS

I want to export each feature by zooming to certain scale (eg 1:25000 where feature will be inside map canvas) and save into PNG format. I know function iface.mapCanvas().saveAsImage("image_path&...
3
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1answer
43 views

Which buildings have access to nature where more than 50% of the nature area is closer than 3km?

I have 1) a file with all the residential buildings in a small municipality and 2) a file with all the surrounding green areas. I'm having a hard time solving this because the residential buildings ...
2
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1answer
29 views

Writing Custom Map Tools using RectangleMapTool

I am creating a plugin with a preview window where the user must select a rectangle to define the study zone. I see in this https://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/canvas.html ...
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20 views

qgis2web display only from a certain scale

I'm using QGIS 3.4 and the latest qgis2web plugin. I have a problem to display features at on some scales. Openstreetmap is displayed good but the polygons of a layer are only shown when I zoom in to ...
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0answers
41 views

Translating local coordinate system to world system

In QGIS we needed to measure an area with a total station but that time without a calibrated world coordinate system (no calibration points available). The North was only roughly oriented by compass. ...
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1answer
28 views

Raster dialogues missing

I would like to polygonize a raster layer. I searched on the internet and came across the follwing training manual chapter: https://docs.qgis.org/2.8/en/docs/training_manual/complete_analysis/...
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25 views

Georeferencer GDAL Plugin Not Present in Manage/Install Plugins

I have a student who has installed QGIS 3.x on her Mac OS and cannot locate the Georeferencer GDAL plugin. It does not appear in "installed" (as it should) nor via search in the plugins ...
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0answers
45 views

Conditional value maps in a comboBox using QGIS

I'm using a layer which has some attributes. The first attribute (lets say "Country", for example) has a comboBox and the user can freely choose which value he wants (For example, any ...
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0answers
72 views

PyQt5: Wipe XYZ Connections

I am trying to remove all the xyz connections in a QGIS3 project via PyQt5. I am hitting the following error for the code bellow: for group in getGroupXYZ(self): NameError: name 'getGroupXYZ' is not ...
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0answers
35 views

Running GeoPackage with QGIS Server

I'm trying to run GeoPackage on QGIS Server and query the information. I created a file through GeoPackage's QGIS Desktop. To do the queries I used the following tutorial: https://docs.qgis.org/3.4/en/...
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29 views

Is there a QGIS plugin to drop pins on a repeating pattern in a raster?

I'm looking for a QGIS plugin that drops pins on a repeating pattern in an imperfect raster grid, for example a satellite image. Ideally, one would select a polygon to drop within, a raster, give it ...
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1answer
43 views

Writing Python-based QGIS Plugin for technical potential assessment [closed]

I would like to write a QGIS Plugin/Script (Python?) with which I could easily perform Technical Potential Analyses repeatedly. This is what I mean: For example, I have an area of land and I would ...
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2answers
53 views

Creating Network Flow Diagram using QGIS

I have a Telecom cable network in Geopackage format. How do I create a Network flow diagram from which to represent the relationship between Fiber distribution hub to Network access point?
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1answer
44 views

Implementation of a multi tab plugin

I have successfully built my multi tab gui in Qt Creator but I don't know how do I implement it in the code. I already have my plugin files. I generated them using Plugin Builder. So how do I ...
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0answers
46 views

Handling Data with UI, QGIS 3.12

I have tables/layers with hierarchical data in it with and without geo-positions. Example without: fid, projectnames <table1> -> fk_table1_fid, projectpart, display ... <table2> ...
5
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1answer
71 views

Grouping country polygons into a region without dissolving borders

PowerBI allows for the import of a shapefile via JSON to create a map for data visualization. In PowerBI, I want my users to be able to select either a single country or a region that contains that ...
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0answers
44 views

Problems while Text Label Rotation (angle field) in QGIS 3.8

I encountered a problem when exporting webmap using qgis2web. It turned out not rendering the angle field set in the shapefile for those specific text labels (as Points). I used OpenLayers to export ...
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0answers
32 views

QGIS Versioning plugin

I have created a database from QGIS Cloud free account. I have added a Post GIS layer into QGIS desktop. i have installed versioning plugin and added a group. After Selecting a Group when Hostorize ...
0
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1answer
28 views

OTB plugin was not found [closed]

How can I do segmentation using OTB plugin? I searched it in the Plugin section but was not able to find it out.
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0answers
16 views

Is there a plugin for batch conversion of raster data to vector on QGIS?

I know there is Polygonize but it's just not practical for me because it fails for batch process and there a lot of files that I want to convert in one go. I'm dealing with temperature data stored in ...
2
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3answers
54 views

Contour lines and grid intersection points in QGIS

I'm looking for a way to get a list of altitude for de point in a grid and I think that is possible using intersection points between contour lines and the grid, in a similar way that the tool ...
2
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0answers
22 views

Is there a plugin for autocreating code from actions like in SPSS?

I want to be able to change an edit I did 4 steps ago without having to redo all those 4 steps. Is this possible in a more accessible format than PyQGIS maybe through a plugin?
2
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2answers
59 views

Creating QGIS Plugin starting from Graphical Modeler

I'd like to know how can I create a QGIS Plugin starting from a model built with the graphical modeler. Is it possible or i have to use necessarily scripts python made in the console of QGIS? Any ...
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0answers
20 views

Checking population data for plausibility in OpenRouteService QGIS Plugin

Does anyone have any experience how reliable/plausible the reachability analysis for German cities are? Can anyone report whether the population data, which are supposed to come from the "Global ...
1
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1answer
57 views

QAD Plugin QGIS

Is QAD compatible with QGIS 3.14 "Pi"? I've several issues with it. Only with the points, the rotation and simetry does not work. Polygons and lines work perfectly. Rotate, simetry, etc, ...

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