def testPartNum(self): # test geometry_part_num variable s = QgsLineSymbol() s.deleteSymbolLayer(0) sym_layer = QgsGeometryGeneratorSymbolLayer.create({'geometryModifier': 'segments_to_lines($geometry)'}) sym_layer.setSymbolType(QgsSymbol.Line) s.appendSymbolLayer(sym_layer) marker_line = QgsMarkerLineSymbolLayer(False) marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex) f = QgsFontUtils.getStandardTestFont('Bold', 24) marker = QgsFontMarkerSymbolLayer(f.family(), 'x', 24, QColor(255, 255, 0)) marker.setDataDefinedProperty(QgsSymbolLayer.PropertyCharacter, QgsProperty.fromExpression('@geometry_part_num')) marker_symbol = QgsMarkerSymbol() marker_symbol.changeSymbolLayer(0, marker) marker_line.setSubSymbol(marker_symbol) marker_line.setAverageAngleLength(0) line_symbol = QgsLineSymbol() line_symbol.changeSymbolLayer(0, marker_line) sym_layer.setSubSymbol(line_symbol) # rendering test g = QgsGeometry.fromWkt('LineString(0 0, 10 0, 10 10, 0 10)') rendered_image = self.renderGeometry(s, g, buffer=4) assert self.imageCheck('part_num_variable', 'part_num_variable', rendered_image) marker.setDataDefinedProperty(QgsSymbolLayer.PropertyCharacter, QgsProperty.fromExpression('@geometry_part_count')) # rendering test g = QgsGeometry.fromWkt('LineString(0 0, 10 0, 10 10, 0 10)') rendered_image = self.renderGeometry(s, g, buffer=4) assert self.imageCheck('part_count_variable', 'part_count_variable', rendered_image)
def testPartNumPolygon(self): # test geometry_part_num variable s = QgsFillSymbol() marker_line = QgsMarkerLineSymbolLayer(False) marker_line.setPlacement(QgsMarkerLineSymbolLayer.FirstVertex) f = QgsFontUtils.getStandardTestFont('Bold', 24) marker = QgsFontMarkerSymbolLayer(f.family(), 'x', 24, QColor(255, 255, 0)) marker.setDataDefinedProperty(QgsSymbolLayer.PropertyCharacter, QgsProperty.fromExpression('@geometry_part_num')) marker_symbol = QgsMarkerSymbol() marker_symbol.changeSymbolLayer(0, marker) marker_line.setSubSymbol(marker_symbol) marker_line.setAverageAngleLength(0) s.changeSymbolLayer(0, marker_line) # rendering test - a polygon with a smaller part first g = QgsGeometry.fromWkt('MultiPolygon(((0 0, 2 0, 2 2, 0 0)),((10 0, 10 10, 0 10, 10 0)))') rendered_image = self.renderGeometry(s, g, buffer=4) assert self.imageCheck('poly_part_num_variable', 'poly_part_num_variable', rendered_image)
def testMarkerAverageAngleCenter(self): s = QgsLineSymbol() s.deleteSymbolLayer(0) marker_line = QgsMarkerLineSymbolLayer(True) marker_line.setPlacement(QgsTemplatedLineSymbolLayerBase.CentralPoint) marker = QgsSimpleMarkerSymbolLayer(QgsSimpleMarkerSymbolLayer.Triangle, 4) marker.setColor(QColor(255, 0, 0)) marker.setStrokeStyle(Qt.NoPen) marker_symbol = QgsMarkerSymbol() marker_symbol.changeSymbolLayer(0, marker) marker_line.setSubSymbol(marker_symbol) marker_line.setAverageAngleLength(60) line_symbol = QgsLineSymbol() line_symbol.changeSymbolLayer(0, marker_line) s.appendSymbolLayer(marker_line.clone()) g = QgsGeometry.fromWkt('LineString(0 0, 10 10, 10 0)') rendered_image = self.renderGeometry(s, g) assert self.imageCheck('markerline_center_average_angle', 'markerline_center_average_angle', rendered_image)