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edited May 15 at 5:58

How to change Changing marker shape to ArrowHead? using PyQGIS

With the code below I can add a marker to the symbology of a line type layer. But by default, this marker is a circle.

layerName = 'rede_bombas'
vLayer = QgsProject.instance().mapLayersByName(layerName)[0]

ggsl = QgsGeometryGeneratorSymbolLayer.create({})
ggsl.setSymbolType(QgsSymbol.Marker)
ggsl.setGeometryExpression("centroid($geometry)")
ggsl.setColor(QColor('Blue'))
symbol = vLayer.renderer().symbols(QgsRenderContext())[0]
symbol.insertSymbolLayer(1, ggsl)
vLayer.triggerRepaint()

layerName = 'rede_bombas'
vLayer = QgsProject.instance().mapLayersByName(layerName)[0]

ggsl = QgsGeometryGeneratorSymbolLayer.create({})
ggsl.setSymbolType(QgsSymbol.Marker)
ggsl.setGeometryExpression("centroid($geometry)")
ggsl.setColor(QColor('Blue'))
symbol = vLayer.renderer().symbols(QgsRenderContext())[0]
symbol.insertSymbolLayer(1, ggsl)
vLayer.triggerRepaint()

How do I change the marker shape to ArrowHead?

Is it possible to adjust the marker rotation according to the line rotation?

How to change marker shape to ArrowHead?

With the code below I can add a marker to the symbology of a line type layer. But by default this marker is a circle.

layerName = 'rede_bombas'
vLayer = QgsProject.instance().mapLayersByName(layerName)[0]

ggsl = QgsGeometryGeneratorSymbolLayer.create({})
ggsl.setSymbolType(QgsSymbol.Marker)
ggsl.setGeometryExpression("centroid($geometry)")
ggsl.setColor(QColor('Blue'))
symbol = vLayer.renderer().symbols(QgsRenderContext())[0]
symbol.insertSymbolLayer(1, ggsl)
vLayer.triggerRepaint()

How do I change the marker shape to ArrowHead?

Is it possible to adjust the marker rotation according to the line rotation?

Changing marker shape to ArrowHead using PyQGIS

With the code below I can add a marker to the symbology of a line type layer. But by default, this marker is a circle.

layerName = 'rede_bombas'
vLayer = QgsProject.instance().mapLayersByName(layerName)[0]

ggsl = QgsGeometryGeneratorSymbolLayer.create({})
ggsl.setSymbolType(QgsSymbol.Marker)
ggsl.setGeometryExpression("centroid($geometry)")
ggsl.setColor(QColor('Blue'))
symbol = vLayer.renderer().symbols(QgsRenderContext())[0]
symbol.insertSymbolLayer(1, ggsl)
vLayer.triggerRepaint()

How do I change the marker shape to ArrowHead?

Is it possible to adjust the marker rotation according to the line rotation?

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asked Apr 6 at 21:52

Aloísio Ângelo

How to change marker shape to ArrowHead?

With the code below I can add a marker to the symbology of a line type layer. But by default this marker is a circle.

layerName = 'rede_bombas'
vLayer = QgsProject.instance().mapLayersByName(layerName)[0]

ggsl = QgsGeometryGeneratorSymbolLayer.create({})
ggsl.setSymbolType(QgsSymbol.Marker)
ggsl.setGeometryExpression("centroid($geometry)")
ggsl.setColor(QColor('Blue'))
symbol = vLayer.renderer().symbols(QgsRenderContext())[0]
symbol.insertSymbolLayer(1, ggsl)
vLayer.triggerRepaint()

How do I change the marker shape to ArrowHead?

Is it possible to adjust the marker rotation according to the line rotation?

pyqgis symbology markers