Re: [Qgis-user] Extracting colours from a vector file

2024-04-09 Thread Alexei Schwab via QGIS-User 
Hi Grant,

Not sure if this is what you mean but if you want to get the colour of a 
feature's symbol you can use @symbol_color in the expression builder.

So adding a "colour" column to your attributes and using field calculator to 
set the expression to @symbol_color will give you the colour for each feature. 

It will give you a hex colour code. 

If you need the RGB values, you can use  the expression:

colour_part(@symbol_color, 'red'), colour_part(@symbol_color, 'green'), 
colour_part(@symbol_color, 'blue')

Regards,

Alexei

On Tue, 9 Apr 2024, at 08:54, Grant Boxer via QGIS-User wrote:
> I would like to extract colours from a rule-based rendered shp file with the 
> aim of applying these colours to a MapInfo tab file. I have tried the rgb 
> function but that doesn’t seem to work. Anyone have any suggestions to 
> extract the red, green and blue values?
> Cheers Grant, Perth WA
>  
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[Qgis-user] geojson

2024-04-09 Thread Manuel Fernandez via QGIS-User 
I have a streets layer in geojson. Is it possible to put the name tag on
the line? Not in a popup.
Thanks a lot
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Re: [Qgis-user] WFS: Change symbolization (outline color/thickness and fill) using Python in QGIS.

2024-04-09 Thread Stefan Giese (WhereGroup) via QGIS-User 

Hi mikeE

here is a small example based on your code:

uri = 
'https://www.geodatenportal.sachsen-anhalt.de/wss/service/ST_LVermGeo_ALKIS_WFS_OpenData/guest?&service=WFS&BBOX=1332412,6708967,1333423,6709355&restrictToRequestBBOX=1&VERSION=auto&typename=ave:GebaeudeBauwerk&srsname=EPSG:25832&preferCoordinatesForWfsT11=false&pagingEnabled=true'

lyr14 = QgsVectorLayer(uri, "LSA: ALKIS Gebäude (WFS)" , 'WFS')
# Farbe ändern
lyr14.renderer().symbol().setColor(QColor("red"))
lyr14.renderer().symbol().symbolLayer(0).setStrokeColor(QColor("blue"))
lyr14.renderer().symbol().symbolLayer(0).setStrokeWidth(0.5)
#lyr14.triggerRepaint() #braucht es nur wenn schon geladen
# Legende updaten
iface.layerTreeView().refreshLayerSymbology(lyr14.id())
QgsProject.instance().addMapLayer(lyr14)

Am 09.04.2024 um 15:28 schrieb Elstermann, Mike via QGIS-User:

Hello everyone,

I have a code snippet to load a WFS, how can I easily change the symbolization 
(outline color/thickness and fill) using Python in QGIS?.

  def addWFS14(self):
 uri = 
'https://www.geodatenportal.sachsen-anhalt.de/wss/service/ST_LVermGeo_ALKIS_WFS_OpenData/guest?&service=WFS&BBOX=1332412,6708967,1333423,6709355&restrictToRequestBBOX=1&VERSION=auto&typename=ave:GebaeudeBauwerk&srsname=EPSG:25832&preferCoordinatesForWfsT11=false&pagingEnabled=true'
 lyr14 = QgsVectorLayer(uri, "LSA: ALKIS Gebäude (WFS)" , ‚WFS')
 QgsProject.instance().addMapLayer(lyr14)


Thanks & best regards, mikeE.


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[Qgis-user] WFS: Change symbolization (outline color/thickness and fill) using Python in QGIS.

2024-04-09 Thread Elstermann, Mike via QGIS-User 
Hello everyone,

I have a code snippet to load a WFS, how can I easily change the symbolization 
(outline color/thickness and fill) using Python in QGIS?.

 def addWFS14(self):
uri = 
'https://www.geodatenportal.sachsen-anhalt.de/wss/service/ST_LVermGeo_ALKIS_WFS_OpenData/guest?&service=WFS&BBOX=1332412,6708967,1333423,6709355&restrictToRequestBBOX=1&VERSION=auto&typename=ave:GebaeudeBauwerk&srsname=EPSG:25832&preferCoordinatesForWfsT11=false&pagingEnabled=true'
lyr14 = QgsVectorLayer(uri, "LSA: ALKIS Gebäude (WFS)" , ‚WFS')
QgsProject.instance().addMapLayer(lyr14)


Thanks & best regards, mikeE. 


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[Qgis-user] Extracting colours from a vector file

2024-04-09 Thread Grant Boxer via QGIS-User 
I would like to extract colours from a rule-based rendered shp file with the
aim of applying these colours to a MapInfo tab file. I have tried the rgb
function but that doesn't seem to work. Anyone have any suggestions to
extract the red, green and blue values?

Cheers Grant, Perth WA

 

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