How to add an existing QGSVectorLayer to QGIS project?
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4
I know I can pull a vector file into my current project using:
vlayer = iface.addVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
But if I create my layer using something like:
vlayer = QgsVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
and then I do some processing on vlayer how do I then add it to the current project or map layers list?
qgis-3 pyqgis-3
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
add a comment |
4
I know I can pull a vector file into my current project using:
vlayer = iface.addVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
But if I create my layer using something like:
vlayer = QgsVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
and then I do some processing on vlayer how do I then add it to the current project or map layers list?
qgis-3 pyqgis-3
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
1
Can you expand on what you mean by "processing"? Editing the layer such as modifying features, running a tool from the processing toolbox etc? Or do you mean something like:QgsProject.instance().addMapLayer(vlayer)?
– Joseph
Mar 6 at 13:00
that is the correct answer
– Ian Turton♦
Mar 6 at 13:05
Any sort of process that changes the layer features
– Ian Turton♦
Mar 6 at 13:05
You can see in the PyQGIS cookbook how to add aQgsVectorLayerto the project docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/…
– etrimaille
Mar 6 at 15:33
@etrimaille - thanks, I spotted that soon after I got the answer here :-)
– Ian Turton♦
Mar 7 at 8:02
add a comment |
4
4
4
I know I can pull a vector file into my current project using:
vlayer = iface.addVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
But if I create my layer using something like:
vlayer = QgsVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
and then I do some processing on vlayer how do I then add it to the current project or map layers list?
qgis-3 pyqgis-3
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
I know I can pull a vector file into my current project using:
vlayer = iface.addVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
But if I create my layer using something like:
vlayer = QgsVectorLayer(r"S:/Data/Natural_Earth_quick_start/110m_cultural/ne_110m_admin_0_countries.shp", "admin", "ogr")
and then I do some processing on vlayer how do I then add it to the current project or map layers list?
qgis-3 pyqgis-3
qgis-3 pyqgis-3
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
asked Mar 6 at 12:48
Ian Turton♦Ian Turton
50.2k548118
50.2k548118
1
Can you expand on what you mean by "processing"? Editing the layer such as modifying features, running a tool from the processing toolbox etc? Or do you mean something like:QgsProject.instance().addMapLayer(vlayer)?
– Joseph
Mar 6 at 13:00
that is the correct answer
– Ian Turton♦
Mar 6 at 13:05
Any sort of process that changes the layer features
– Ian Turton♦
Mar 6 at 13:05
You can see in the PyQGIS cookbook how to add aQgsVectorLayerto the project docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/…
– etrimaille
Mar 6 at 15:33
@etrimaille - thanks, I spotted that soon after I got the answer here :-)
– Ian Turton♦
Mar 7 at 8:02
add a comment |
1
Can you expand on what you mean by "processing"? Editing the layer such as modifying features, running a tool from the processing toolbox etc? Or do you mean something like:QgsProject.instance().addMapLayer(vlayer)?
– Joseph
Mar 6 at 13:00
that is the correct answer
– Ian Turton♦
Mar 6 at 13:05
Any sort of process that changes the layer features
– Ian Turton♦
Mar 6 at 13:05
You can see in the PyQGIS cookbook how to add aQgsVectorLayerto the project docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/…
– etrimaille
Mar 6 at 15:33
@etrimaille - thanks, I spotted that soon after I got the answer here :-)
– Ian Turton♦
Mar 7 at 8:02
1
1
Can you expand on what you mean by "processing"? Editing the layer such as modifying features, running a tool from the processing toolbox etc? Or do you mean something like:
QgsProject.instance().addMapLayer(vlayer)?– Joseph
Mar 6 at 13:00
Can you expand on what you mean by "processing"? Editing the layer such as modifying features, running a tool from the processing toolbox etc? Or do you mean something like:
QgsProject.instance().addMapLayer(vlayer)?– Joseph
Mar 6 at 13:00
that is the correct answer
– Ian Turton♦
Mar 6 at 13:05
that is the correct answer
– Ian Turton♦
Mar 6 at 13:05
Any sort of process that changes the layer features
– Ian Turton♦
Mar 6 at 13:05
Any sort of process that changes the layer features
– Ian Turton♦
Mar 6 at 13:05
You can see in the PyQGIS cookbook how to add a
QgsVectorLayer to the project docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/…– etrimaille
Mar 6 at 15:33
You can see in the PyQGIS cookbook how to add a
QgsVectorLayer to the project docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/…– etrimaille
Mar 6 at 15:33
@etrimaille - thanks, I spotted that soon after I got the answer here :-)
– Ian Turton♦
Mar 7 at 8:02
@etrimaille - thanks, I spotted that soon after I got the answer here :-)
– Ian Turton♦
Mar 7 at 8:02
add a comment |
1 Answer
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4
To add an existing single layer:
vlayer = QgsVectorLayer("some/path/to/shapefile.shp", "admin", "ogr")
QgsProject.instance().addMapLayer(vlayer)
To add existing multiple layers:
vlayer1 = QgsVectorLayer("some/path/to/shapefile1.shp", "admin1", "ogr")
vlayer2 = QgsVectorLayer("some/path/to/shapefile2.shp", "admin2", "ogr")
layers = [vlayer1 , vlayer2]
QgsProject.instance().addMapLayers(layers)
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
add a comment |
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4
To add an existing single layer:
vlayer = QgsVectorLayer("some/path/to/shapefile.shp", "admin", "ogr")
QgsProject.instance().addMapLayer(vlayer)
To add existing multiple layers:
vlayer1 = QgsVectorLayer("some/path/to/shapefile1.shp", "admin1", "ogr")
vlayer2 = QgsVectorLayer("some/path/to/shapefile2.shp", "admin2", "ogr")
layers = [vlayer1 , vlayer2]
QgsProject.instance().addMapLayers(layers)
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
add a comment |
4
To add an existing single layer:
vlayer = QgsVectorLayer("some/path/to/shapefile.shp", "admin", "ogr")
QgsProject.instance().addMapLayer(vlayer)
To add existing multiple layers:
vlayer1 = QgsVectorLayer("some/path/to/shapefile1.shp", "admin1", "ogr")
vlayer2 = QgsVectorLayer("some/path/to/shapefile2.shp", "admin2", "ogr")
layers = [vlayer1 , vlayer2]
QgsProject.instance().addMapLayers(layers)
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
add a comment |
4
4
4
To add an existing single layer:
vlayer = QgsVectorLayer("some/path/to/shapefile.shp", "admin", "ogr")
QgsProject.instance().addMapLayer(vlayer)
To add existing multiple layers:
vlayer1 = QgsVectorLayer("some/path/to/shapefile1.shp", "admin1", "ogr")
vlayer2 = QgsVectorLayer("some/path/to/shapefile2.shp", "admin2", "ogr")
layers = [vlayer1 , vlayer2]
QgsProject.instance().addMapLayers(layers)
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
To add an existing single layer:
vlayer = QgsVectorLayer("some/path/to/shapefile.shp", "admin", "ogr")
QgsProject.instance().addMapLayer(vlayer)
To add existing multiple layers:
vlayer1 = QgsVectorLayer("some/path/to/shapefile1.shp", "admin1", "ogr")
vlayer2 = QgsVectorLayer("some/path/to/shapefile2.shp", "admin2", "ogr")
layers = [vlayer1 , vlayer2]
QgsProject.instance().addMapLayers(layers)
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
answered Mar 6 at 13:24
JosephJoseph
58.8k7102207
58.8k7102207
add a comment |
add a comment |
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1
Can you expand on what you mean by "processing"? Editing the layer such as modifying features, running a tool from the processing toolbox etc? Or do you mean something like:
QgsProject.instance().addMapLayer(vlayer)?– Joseph
Mar 6 at 13:00
that is the correct answer
– Ian Turton♦
Mar 6 at 13:05
Any sort of process that changes the layer features
– Ian Turton♦
Mar 6 at 13:05
You can see in the PyQGIS cookbook how to add a
QgsVectorLayerto the project docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/…– etrimaille
Mar 6 at 15:33
@etrimaille - thanks, I spotted that soon after I got the answer here :-)
– Ian Turton♦
Mar 7 at 8:02