def renderPolygon(self, output_polygon):
# create a black dotted outline symbol layer
symbol = QgsFillSymbol().createSimple({
'color': 'grey',
'outline_width': '0'
})
symbol.setOpacity(0.2)
# create renderer and change the symbol layer in its symbol
output_polygon.renderer().setSymbol(symbol)
# add catchment to the canvas
QgsProject.instance().addMapLayer(output_polygon)
def testOpacityWithDataDefinedColor(self):
poly_shp = os.path.join(TEST_DATA_DIR, 'polys.shp')
poly_layer = QgsVectorLayer(poly_shp, 'Polys', 'ogr')
self.assertTrue(poly_layer.isValid())
s = QgsFillSymbol()
s.deleteSymbolLayer(0)
random_fill = QgsRandomMarkerFillSymbolLayer(1, seed=481523)
marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Circle,
6)
marker.setColor(QColor(255, 0, 0))
marker.setStrokeWidth(1)
marker.setDataDefinedProperty(
QgsSymbolLayer.PropertyFillColor,
QgsProperty.fromExpression("if(Name='Dam', 'red', 'green')"))
marker.setDataDefinedProperty(
QgsSymbolLayer.PropertyStrokeColor,
QgsProperty.fromExpression("if(Name='Dam', 'magenta', 'blue')"))
marker_symbol = QgsMarkerSymbol()
marker_symbol.changeSymbolLayer(0, marker)
marker_symbol.setOpacity(0.5)
random_fill.setSubSymbol(marker_symbol)
s.appendSymbolLayer(random_fill.clone())
s.setOpacity(0.5)
poly_layer.setRenderer(QgsSingleSymbolRenderer(s))
ms = QgsMapSettings()
ms.setOutputSize(QSize(400, 400))
ms.setOutputDpi(96)
ms.setExtent(QgsRectangle(-118.5, 19.0, -81.4, 50.4))
ms.setLayers([poly_layer])
# Test rendering
renderchecker = QgsMultiRenderChecker()
renderchecker.setMapSettings(ms)
renderchecker.setControlPathPrefix('symbol_randommarkerfill')
renderchecker.setControlName('expected_randommarker_opacityddcolor')
res = renderchecker.runTest('expected_randommarker_opacityddcolor')
self.report += renderchecker.report()
self.assertTrue(res)
def testOpacityWithDataDefinedColor(self):
poly_shp = os.path.join(TEST_DATA_DIR, 'polys.shp')
poly_layer = QgsVectorLayer(poly_shp, 'Polys', 'ogr')
self.assertTrue(poly_layer.isValid())
layer = QgsSimpleFillSymbolLayer()
layer.setStrokeStyle(Qt.NoPen)
layer.setColor(QColor(200, 250, 50))
layer.setDataDefinedProperty(
QgsSymbolLayer.PropertyFillColor,
QgsProperty.fromExpression("if(Name='Dam', 'red', 'green')"))
layer.setDataDefinedProperty(
QgsSymbolLayer.PropertyStrokeColor,
QgsProperty.fromExpression("if(Name='Dam', 'magenta', 'blue')"))
symbol = QgsFillSymbol()
symbol.changeSymbolLayer(0, layer)
symbol.setOpacity(0.5)
poly_layer.setRenderer(QgsSingleSymbolRenderer(symbol))
ms = QgsMapSettings()
ms.setOutputSize(QSize(400, 400))
ms.setOutputDpi(96)
ms.setExtent(QgsRectangle(-118.5, 19.0, -81.4, 50.4))
ms.setLayers([poly_layer])
# Test rendering
renderchecker = QgsMultiRenderChecker()
renderchecker.setMapSettings(ms)
renderchecker.setControlPathPrefix('symbol_simplefill')
renderchecker.setControlName('expected_simplefill_opacityddcolor')
res = renderchecker.runTest('expected_simplefill_opacityddcolor')
self.report += renderchecker.report()
self.assertTrue(res)
