Questions tagged [pyqt5]

Python bindings for Qt5

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25 views

Overlaying points on map in PyQGIS [closed]

I have added google map with PyQt5 and PyQGIS and I want to overlay points and images on map(specifically in python code) but I don't know how to do that. I am using PyQt5 and QGIS3. import sys from ...
1
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1answer
30 views

How to put QgsCheckableComboBox() into standby

I'm trying QgsCheckableComboBox() in my simple python script in QGIS. How to pause code execution while a comboBox-window is open (like a dialog box)? In my example, I want to ensure that the print() ...
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0answers
46 views

Unable to delete .shp and .dbf files from directory when on canvas PyQGIS

I am creating a standalone PyQGIS application and is met with a problem. When a shapefile is shown on my canvas, I am unable to delete the corresponding .shp and .dbf files in my directory. This is ...
1
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0answers
44 views

ProgressBar for a function that has to communicate with QObjects

My Plugin uploads Layers to a WebGIS and the QGIS GUI turns inactive during this process. So that the User knows that the Program hasn't crashed I want to implement a ProgressBar. My first try gave me ...
1
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1answer
32 views

Which PyQGIS class is the layer properties menu?

I have a plugin which I want to add options to either the context menu when right clicking a layer at the Layers panel or the properties menu for that layer. How can I call them from PyQGIS? Can I add ...
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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 ...
4
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1answer
54 views

Opening embedded canvas in new window with all layers

I am creating a standalone custom PyQGIS application and have some questions regarding canvas. I have read the cookbook: https://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/canvas.html ...
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0answers
17 views

Install the 5.11.2 version of PyQt5 using OSGeo4W setup

How can I install the 5.11.2 version of PyQt5 using the OSGeo4W setup in Windows10? The default version of PyQt5 installed from OSGeo4W is 5.11.3 which is different from the QGIS compilation version, ...
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0answers
15 views

QGIS Plugin to show data from Postgres Database using PyQGIS , QT Table Widget

I'm trying to build a plugin in QGIS 3.0 which will load a table from Postgres DB and show the data in QtableWidget using PyQT and PyQGIS. I have created the form in QT designer : In my main plugin ...
0
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1answer
50 views

Setting Date and Time for QDateEdit and QTimeEdit

Working on a QGIS plugin, I am struggling to save/load date and time values. Users can enter dates via QDateEdit widget and times via QTimeEdit widget. Values are then stored the following: s = ...
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0answers
19 views

Open QGIS project from PostgreSQL DB while clicking on the QGIS desktop ICON using PyQGIS and Plugin

I am writing a PyQGIS code to directly open QGIS (loaded with QGIS Project file obtained from PostgreSQL database). Here's the code I have written in my Plugin-open_project.py file QgsProject.instance(...
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0answers
32 views

Qgis Dialog Not showing any Qwidgets Why?

i tried call another dialog form qgis plugin its show the dialog but not showing any Qwidget in that file how to show them (if i call single ui file its showing fine ) Qgis Plugin Code: from qgis.PyQt....
1
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0answers
30 views

Drawing points in real time (or at short intervals) using PyQGIS [closed]

I’m working on a robot that moves in space and transfers its GPS coordinates to the server. I need to create a script in QGIS that will receive coordinates and draw points based on these coordinates ...
4
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0answers
47 views

How to use all QGIS 3 custom widgets in Qt Designer?

For example, QGIS 3.4 has various custom widgets such as QgsFieldValuesLineEdit and QgsColorWheel (and later versions have even more widgets) but they are not listed in the QGIS custom widgets list of ...
1
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0answers
40 views

Display maps from QGIS in my GUI created using PyQt5 [closed]

I wish to create a GUI using PyQt5 for an application that displays a map created using QGIS. How do I integrate QGIS and PyQt so that the map I wish to display can be shown in my app?
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0answers
66 views

I can't load a CSVv file inside a QTableWidget by Python code

I am a beginner of PyQGIS and I'm trying to do a QGIS plugin, with QGIS 3.4.7 and PyCharm 2016.3.6. I already did the "dialog" box on Qt and after I wrote on Pycharm. It is a table only with the ...
0
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0answers
42 views

Get width of vertical QHeaderView

How can I get the actual width of the vertical header in a QHeaderView. In the docs I can only find the function sectionSize(). But the docs says: 'Returns the width (or height for vertical headers) ...
1
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0answers
37 views

How to use nested for loop to iterate over features of a layer?

I have a shapefile having features with duplicate IDs. I want to merge features with same IDs and take average of values of other field which are different. How is it possible in python in QGIS3? ...
1
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1answer
41 views

pyqgis: Get the Click on canvas standalone app

I added a subwindow in a MDI area containing a QgsMapCanvas. Defined the clic tool QgsMapToolEmitPoint. But when I click on the canvas there's no response, al least it should print 'clicked'. ¿¿May ...
1
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0answers
33 views

Connect QgsMapTool to PyQt Application

I am trying to initialise my DrawPolygonMapTool within my application once the DrawPolygonButton is enabled. When the relevant button is pushed, it does run the __init__ function in my ...
5
votes
1answer
174 views

Using a custom UI for a QGIS processing algorithm script

In QGIS 2.x I have a PyQGIS script that utilises a custom form created in Qt Designer. I could simply call the form and connect a button to a function with the following: class MyWidget(QtGui.QWidget)...
1
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1answer
74 views

Disconnect layer.selectionChanged when project is being closed or layer removed

On QgsProject.readProject I add a slot to some layer's selectionChanged. I tried disconnecting these slots in QgsProject.layersWillBeRemoved but here the project seems already closed, so I can't ...
0
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1answer
148 views

PyQGIS in standalone scripts on Mac, import error

Following the PyQGIS Developer Cookbook to use PyQGIS in standalone scripts. Fixed the initial errors by setting the PYTHONPATH and DYLD_PYTHON_PATH to the appropriate folders but am now faced with ...
4
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0answers
52 views

PyQGIS: What objects need to be destroyed in a custom expression

I'm using a custom (PyQGIS) function in expressions to make little detailed minimaps around each feature in a layer, and store it in the layer (gpkg) as a png. My code works but makes QGIS (3.12) ...
2
votes
1answer
97 views

QGIS plugin closing all open PyQt dialogs

In my QGIS3 plugin I need to close all open PyQt5 dialogs. The structure of my plugin is like the following code. To be clear, when I call runCloseDialogs() I want to close both dialogs opened by run()...
0
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1answer
227 views

The plugin 'C:/OSGEO4~1/apps/Qt5/plugins/platforms/qwindowsd.dll' uses incompatible Qt library (Cannot mix debug and release libraries)

I am trying to create a standalone script with QGIS functionality however I continuously run into this error regarding QT platform plugin not loading "windows" not loading. Current error code: qt....
2
votes
2answers
83 views

Hook two horizontal slider each other - PyQt5

In my QGIS Plugin I have this Qt dialog where there are two horizontal sliders. I'm trying to hook one to the other in this way: if the checkBox is checked, I take the difference between them and if ...
0
votes
1answer
251 views

Retrieve data from multiple selected cells in QTableWidget for a QGIS Plugin?

I am creating a plugin which shows the list of location of vector/raster layers. I am using QTableWidget to show the data. When I select one row/cell and click a QPushButton it opens the specific ...
2
votes
2answers
3k views

QComboBox multiple selection - PyQT5

I'm making the gui for my QGIS3 plugin using PyQT5 and QT designer. I have a very long list of items in a QComboBox and I need the user to be able to select one or more items. I know that QComboBox ...
2
votes
1answer
48 views

QGIS Plugins - How to make sure that Vector and Raster layers in a folder are loaded only once?

Plugin Intro: I am creating a plugin for in-house development which lists the location of vector/raster layers of specific projects. Each project has a number of files ranging from 0 to few hundreds. ...
2
votes
1answer
75 views

Using QCompleter with strings composed by different words in QGIS Plugin - PyQT5

I'm using QCompleter in my QGIS plugin. The code below works well, but I'd love to make it more sophisticated. In this example I have some strings that are composed of some words, for example "How to ...
1
vote
1answer
201 views

Using PyQt5 Objects inside QTabWidget and QScrollArea - QGIS Plugin [closed]

I'm using PyQt5 and QT Designer to create the user interface for my QGIS plugin. Now I'm learning to use QTabWidget and QScrollArea. What I don't understand is how to use the objects inside tabs or ...
2
votes
1answer
107 views

TypeError: QgsGeometry.fromMultiPolygonXY(): argument 1 has unexpected type 'list'

When I modify the code (which works) from: vertices = fProject.geometry().asMultiPolygon() for v in vertices: points.append(v) fet.setGeometry(QgsGeometry.fromMultiPolygonXY(points)) to: pt = ...
3
votes
1answer
135 views

Remove parts of QGIS 3 toolbars using PyQGIS

How can I remove specific parts of QGIS toolbar? I know I can remove toolbars using this line of code: iface.fileToolBar().setVisible(False) But what I want is to delete every icon in the ...
5
votes
0answers
184 views

QGIS 3: Set custom project variables with input dialog

I am using QGIS 3.10.0 and Windows 10. I have a project where I want the user to define custom project variables. I want to make this user friendly, I don't want the user to need to open the project ...
3
votes
1answer
115 views

Check if PYQT5 Widget is Visible in QGIS Plugin

I'm trying to check if my widget is alredy open/visible before showing it (or before run this function). I need to check this because in my QGIS plugin it can happen that I call this function many ...
0
votes
0answers
67 views

QtDesigner is not starting for qgis bat file

The qt-designer.bat file did not launch the QtDesigner. I have tried the file available with OSGeo4W64 installation but the qt-designer did not starts.I also try to start the qtdesigner from the ...
2
votes
2answers
126 views

PyQT5 - How to use QCompleter, QGIS Plugin

I'm trying to use QCompleter to get something like in the image. The code seems pretty simple, but in my dialog nothing happens. Is there some problem in this code? The dialog is created using Qt ...
1
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0answers
66 views

how to access Canvas mouse point on action of button from another window Pyqt5

I am PyQt5 and PyQgis novice. Below code snippet is my main window application. Below code throw a main Window with QGsMapCanvas as central widget as canvas, which displays maps. On menu action and i ...
1
vote
0answers
108 views

How to fill a field with comboBox.currentText()

Basically, I want to create a widget plugin (QGIS 3.x) in which any user can choose a standard text from a combo box and, after press a ok button, enable a layer for editing and calls the add feature ...
2
votes
1answer
33 views

QGIS and PYQT5: Getting QgsAttributeForm.modeChanged signal

I wonder how I can catch the signal, that attributes in a form are editable? E.G. I open a form to see the values of the attributes of my geodata. Then I click on the "pencil" in QGIS (to make data ...
1
vote
0answers
23 views

Getting HTML-Values in a QGIS-form by pyQT5

I have created a form for point-objects, that is delivering some values (getting by a database-connection) in the "html-area" in the form. So far the form works well and I´m getting the values that I ...
1
vote
1answer
84 views

QGIS ordered set from layer.getFeatures()

I need a list of all values of a certain field in a QGIS dataset. To get this, I am using for festure in layer.getFeatures(): value=feature[fieldname] This is kind of working, but I have two ...
2
votes
2answers
109 views

Ok Button disabled until every input has been filled

I'm developping a QGIS Plugin where the User clicks on the map, my plugin make a buffer and propose a street name, a street side and a disctrict, then the user selects which administration he's from ...
1
vote
1answer
176 views

QGIS plugin mouseClickEvent

I am writing a plugin which shows a graph in a qGraphicsView based on some selected points. I want to be able to read out points clicking in the graph, so I've written a mosePressEvent eventhandler ...
1
vote
1answer
185 views

Show Leaflet markers that falls inside mapbounds, based on geocode location entered from database

I have a GUI application where data from my database are displayed on a table and also displayed as markers on Leaflet map. I have added the Geocode (L.Control.geocoder()) function into my application,...
1
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0answers
158 views

Can't install the PyQt5 - UI to py conversion issues because of multiple python versions [closed]

I have both Python 2.7 (which comes with ArcGIS) and 3.7 (which comes QGIS 3.4) - in normal command prompt its showing Python 3.7.0 and path from qgis 3.4. I confirmed version and path running ...
0
votes
1answer
72 views

Closing composer using PyQt5 [closed]

Migrating from 2.8 to 3.4 i stumble on what seems a simple task: closing programmaticaly an opened composer. To open it is no trouble with the layout manager but to close it is another story. the ...
1
vote
1answer
87 views

QGIS 3 : Qt Signal emmitted when selecting a layer?

I am currently writing a QGIS 3 plugin. I would like to catch the signal emmited each time the user selects a new layer in the layer panel. I have already searched in the QGIS API (QgsProject, ...
2
votes
0answers
66 views

Delayed function calling inside QgsTask

I try to add a function to the qt event loop via QTimer.singleShot(...) from within a QgsTask. However the function is never executed. I wrote a short script that isolates this issue: import time ...