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Results tagged with pyqgis
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user 135589
Python bindings for QGIS.
0
votes
2
answers
82
views
Add QGSExpression to QGraphicsItem in Layout using PyQGIS
I would like to add and modify and expression for Opacity in a QGraphicsLineItem
when I have the item QGraphicsLineItem, it not have a variable to modify the opacity expression
Code to get the item:
Q …
- 928
1
vote
Accepted
Add QGSExpression to QGraphicsItem in Layout using PyQGIS
I found the solution to read and modify the opacity expression for any item of the Layout in the following way:
items = QgsProject.instance().layoutManager().layouts()[0].items()
for item in items:
…
- 928
0
votes
name 'QPrinter' is not defined
You be able to import QPrinter with the following:
from qgis.PyQt.QtPrintSupport import QPrinter
- 928
3
votes
Adding field to PostGIS Layer with PyQGIS
If you need to add a new column in your layer from Postgis, use this:
layer = iface.activeLayer()
name_column = "new_column"
layer.dataProvider().addAttributes([QgsField(name_column, QVariant.Strin …
- 928
4
votes
Accepted
0
votes
PyQGIS: how to get a list of all textlabels in my Layout
I notice that the items() return the objects from the layout but some of them return as QT objects that are not manipulable with PyQGIS, so it is not possible to modify and access the properties of all …
- 928
1
vote
Exporting Geopackage table to directory as CSV with PyQGIS
I think, this code will solve your requirements
from osgeo import gdal
gdal.VectorTranslate('/path/test.xlsx', '/ruta/the_gpkg_path.gpkg', options='-f XLSX layer1 layer2 layer3')
Remember that la …
- 928
1
vote
Create a polygon from WKT format in PyQGIS
Install QuickWKT
Open the plugin QuickWKT
Select polygon from WKT
Click OK and you will your Polygon
If you want to add the polygon from PyQGIS, it is the code that can help you:
mem_layer = QgsVectorLayer …
- 928