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Results tagged with qgis-3
Search options questions only
not deleted
user 31
for questions specific to the 3.x series of QGIS.
6
votes
1
answer
1k
views
Is there a QGIS 3 setting to completely turn off plugins?
I would like to turn off all plugins without uninstalling them. I usually do this while testing to rule out an issue being caused by a plugin. I am looking for the QGIS equivalent to the ArcMap Admi …
- 14.7k
4
votes
2
answers
1k
views
Updating layer extent after changing source in PyQGIS?
I am running a python script in QGIS 3.8.3-Zanzibar where I am changing the source of a GeoJson file.
I am calling layer.reload() but subsequent calls to layer.extent() still return the old extent. …
- 14.7k
1
vote
0
answers
258
views
Is there a setting or settings in QGIS 3 that allows users to modify application tool-tip be...
I can't read the longer tool-tip text in QGIS because the tooltop text is longer than the width and it doesn't wrap past 2 lines:
Is there a setting or configuration change to either widen or heig …
- 14.7k
4
votes
1
answer
1k
views
Updating Algorithm list in pyqgis3?
I am attempting to run a union operation in a standalone pyqgis script and I'm receiving this error: Algorithm qgis:union not found
The union operation fails with this code:
params = {
'INPUT' …
- 14.7k
14
votes
3
answers
2k
views
How to view layers by data source in QGIS 3?
Is there a tool or panel in QGIS 3 that allows a user to view the map layers by data source? Similar to the List By Source view in the ArcMap Table of Contents?
I thought I had come across it, but n …
- 14.7k
14
votes
6
answers
3k
views
Is there a way in QGIS 3 to get a selected feature WKT?
In QGIS 2.x, I used the getWkt plugin: https://github.com/hugoledoux/QGIS-getWKT to get a WKT of a selected feature.
But that plugin isn't present in QGIS 3.x. Was that capability built into core Q …
- 14.7k
3
votes
1
answer
2k
views
How to create a symbol with directional arrows in QGIS 3?
This is the same as this question for ArcGIS: Creating Directional Flow Arrows for sewer lines? but for QGIS.
I tried to follow the same approach as in ArcGIS, but I keep missing the mark. I think I …
- 14.7k
2
votes
0
answers
856
views
How to make a QGIS 3 Layer refresh after a joined data source is updated
I have a layer of ZCTA features that is sourced from a SpatiaLite table that is joined to an Excel spreadsheet and rendered with categorized symbology. That all works fine. The join configuration is: …
- 14.7k
7
votes
0
answers
205
views
How to render features that are just outside the map canvas extent in QGIS 3.4?
I am trying to generate a cloudy mask, following the recipe in "Qgis Map Design 2nd ed. Edition". For the most part, I have it working.
But when panning around, the mask changes. And I think that …
- 14.7k
0
votes
2
answers
446
views
How to refresh the HTML, including the linked CSS for a QGIS HTML frame?
I am using a referenced css file in an HTML Frame in a QGIS 3.4.2 layout.
<link rel="stylesheet" type="text/css" href="map.css">
It works great until I have to go and edit the css. When I make the …
- 14.7k
4
votes
1
answer
612
views
How to create a valid QgsVectorLayer from a PostgreSQL view?
I am attempting to create a QgsVectorLayer with the same code as I am using for a PostgreSQL table, which works correctly and the isValid() method on the layer returns true.
uri=QgsDataSourceUri()
ur …
- 14.7k
14
votes
1
answer
3k
views
Can QGIS 3.0 be installed and run side-by-side with QGIS 2.x?
I'm interested to know if QGIS 3 can be installed and run side-by-side with a QGIS 2.x installation on windows?
- 14.7k
0
votes
0
answers
1k
views
How do you change the value of a Boolean column in a QGIS 3 Attribute Table?
I am editing feature in a PostgreSQL table in QGIS 3 and while I can edit the values in most columns, I cannot edit the Boolean value.
I can enter the cell in edit mode, but keystrokes don't work. I …
- 14.7k