def setSectorsStyle(self, layer):
# get unique values
field = 'Class'
fni = layer.fields().indexFromName(field)
if fni == -1: # Hydraulic sectors
field = 'SubNet'
fni = layer.fields().indexFromName(field)
unique_values = layer.dataProvider().uniqueValues(fni)
# define categories
categories = []
for unique_value in unique_values:
# initialize the default symbol for this geometry type
symbol = QgsSymbol.defaultSymbol(layer.geometryType())
# configure a symbol layer
symbol_layer = None
if layer.geometryType() == 0: # Point
layer_style = dict()
layer_style['color'] = '%d, %d, %d' % (randrange(
0, 256), randrange(0, 256), randrange(0, 256))
layer_style['size'] = str(2)
symbol_layer = QgsSimpleMarkerSymbolLayer.create(layer_style)
else:
symbol = QgsLineSymbol().createSimple({})
symbol.deleteSymbolLayer(0)
# Line
lineSymbol = QgsSimpleLineSymbolLayer()
lineSymbol.setWidthUnit(2) # Pixels
lineSymbol.setWidth(1.5)
lineSymbol.setColor(
QColor(randrange(0, 256), randrange(0, 256),
randrange(0, 256)))
symbol.appendSymbolLayer(lineSymbol)
# replace default symbol layer with the configured one
if symbol_layer is not None:
symbol.changeSymbolLayer(0, symbol_layer)
# create renderer object
category = QgsRendererCategory(unique_value, symbol,
str(unique_value))
# entry for the list of category items
categories.append(category)
# create renderer object
renderer = QgsCategorizedSymbolRenderer(field, categories)
# assign the created renderer to the layer
if renderer is not None:
layer.setRenderer(renderer)
def setStyleLayer(self, layer):
if self.dlg.checkBox_mask.isChecked(): # only border
if layer.geometryType(
) == QgsWkbTypes.PolygonGeometry or layer.geometryType(
) == QgsWkbTypes.LineGeometry:
properties = {
'color': self.mColor.name(),
'outline_width': '0.6'
}
symbol_layer = QgsSimpleLineSymbolLayer.create(properties)
layer.renderer().symbols(
QgsRenderContext())[0].changeSymbolLayer(0, symbol_layer)
elif layer.geometryType() == QgsWkbTypes.PointGeometry:
properties = {
'size': '2',
'color': self.mColor.name(),
'outline_color': self.mColor.name(),
'outline_width': '0.6'
}
symbol_layer = QgsSimpleMarkerSymbolLayer.create(properties)
layer.renderer().symbols(
QgsRenderContext())[0].changeSymbolLayer(0, symbol_layer)
else:
if self.colorIndex > (len(self.colorValues) - 1):
self.colorIndex = 0
color = QColor(self.colorValues[self.colorIndex])
self.colorIndex += 1
if layer.geometryType() == QgsWkbTypes.PolygonGeometry:
layer.renderer().symbols(
QgsRenderContext())[0].symbolLayer(0).setStrokeWidth(0.4)
layer.renderer().symbols(
QgsRenderContext())[0].symbolLayer(0).setBrushStyle(
Qt.Dense4Pattern)
layer.renderer().symbols(
QgsRenderContext())[0].symbolLayer(0).setFillColor(color)
layer.setFeatureBlendMode(13)
self.iface.layerTreeView().refreshLayerSymbology(layer.id())