def test_polygon_polygon_obstacle_obstacle_factor_less(self):
# Test line label but obstacle exists with an equal or lower obstacle factor vs label priority => LABEL
self.layer = TestQgsPalLabeling.loadFeatureLayer('polygon_center')
self.layer.setLabelsEnabled(True)
obstacleLayer = TestQgsPalLabeling.loadFeatureLayer('polygon_small')
for label_priority in range(0, 11):
for obstacle_weight in range(0, label_priority + 1):
obstacle_label_settings = QgsPalLayerSettings()
obstacle_label_settings.obstacle = True
obstacle_label_settings.drawLabels = False
obstacle_label_settings.obstacleFactor = obstacle_weight * 0.2
obstacle_label_settings.obstacleSettings().setType(
QgsLabelObstacleSettings.PolygonInterior)
obstacleLayer.setLabeling(
QgsVectorLayerSimpleLabeling(obstacle_label_settings))
obstacleLayer.setLabelsEnabled(True)
self._TestMapSettings = self.cloneMapSettings(
self._MapSettings)
self.lyr.placement = QgsPalLayerSettings.OverPoint
self.lyr.priority = label_priority
self.checkTest()
self.removeMapLayer(obstacleLayer)
self.removeMapLayer(self.layer)
self.layer = None
def test_point_point_obstacle_obstacle_factor_less(self):
# Test point label but obstacle exists with an equal or lower obstacle factor vs label priority => LABEL
self.layer = TestQgsPalLabeling.loadFeatureLayer('point')
obstacleLayer = TestQgsPalLabeling.loadFeatureLayer(
'point_ordered_obstacle1')
for label_priority in range(0, 11):
for obstacle_weight in range(0, label_priority + 1):
obstacle_label_settings = QgsPalLayerSettings()
obstacle_label_settings.obstacle = True
obstacle_label_settings.drawLabels = False
obstacle_label_settings.obstacleFactor = obstacle_weight * 0.2
obstacleLayer.setLabeling(
QgsVectorLayerSimpleLabeling(obstacle_label_settings))
obstacleLayer.setLabelsEnabled(True)
self._TestMapSettings = self.cloneMapSettings(
self._MapSettings)
self.lyr.placement = QgsPalLayerSettings.OverPoint
self.lyr.quadOffset = QgsPalLayerSettings.QuadrantAboveRight
self.lyr.priority = label_priority
self.checkTest()
self.removeMapLayer(obstacleLayer)
self.removeMapLayer(self.layer)
self.layer = None
def convert_fdo_annotations(dest_layer: QgsVectorLayer, context): # pylint: disable=unused-argument
"""
Converts FDO annotations
"""
# one label class, use simple labeling
label_settings = QgsPalLayerSettings()
label_settings.fieldName = 'TextString'
label_settings.drawLabels = True
label_settings.placement = QgsPalLayerSettings.OverPoint
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.Family, QgsProperty.fromField('FontName'))
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.Size, QgsProperty.fromField('FontSize'))
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.Bold, QgsProperty.fromField('Bold'))
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.Italic, QgsProperty.fromField('Italic'))
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.Underline, QgsProperty.fromField('Underline'))
quadrant_property = QgsProperty.fromExpression("""case
when "VerticalAlignment" = 0 then -- top
case
when "HorizontalAlignment" = 0 then 0
when "HorizontalAlignment" = 1 then 1
when "HorizontalAlignment" = 2 then 2
end
when "VerticalAlignment" = 1 then -- center
case
when "HorizontalAlignment" = 0 then 3
when "HorizontalAlignment" = 1 then 4
when "HorizontalAlignment" = 2 then 5
end
when "VerticalAlignment" in (2,3) then -- baseline, bottom
case
when "HorizontalAlignment" = 0 then 6
when "HorizontalAlignment" = 1 then 7
when "HorizontalAlignment" = 2 then 8
end
end""")
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.OffsetQuad, quadrant_property)
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.LabelRotation,
QgsProperty.fromExpression('360-"Angle"'))
label_settings.dataDefinedProperties().setProperty(
QgsPalLayerSettings.OffsetXY,
QgsProperty.fromExpression(
' concat( "XOffset" ,\',\', "YOffset" )'))
labeling = QgsVectorLayerSimpleLabeling(label_settings)
dest_layer.setLabeling(labeling)
def convert_label_style(properties: LabelStyle,
context) -> QgsPalLayerSettings:
"""
Converts a LabelStyle to QGIS equivalent
"""
label_settings = QgsPalLayerSettings()
label_settings.drawLabels = True
LabelConverter.convert_label_text_symbol(properties.text_symbol,
label_settings, context)
LabelConverter.convert_overposter(properties.overposter,
QgsWkbTypes.UnknownGeometry,
label_settings, context)
label_settings.layerType = QgsWkbTypes.PointGeometry
return label_settings
def test_polygon_placement_with_obstacle(self):
# Horizontal label placement for polygon and a line obstacle
self.layer = TestQgsPalLabeling.loadFeatureLayer('polygon_rect')
obstacleLayer = TestQgsPalLabeling.loadFeatureLayer('polygon_with_hole_line_obstacle')
obstacle_label_settings = QgsPalLayerSettings()
obstacle_label_settings.obstacle = True
obstacle_label_settings.drawLabels = False
obstacle_label_settings.obstacleFactor = 7
obstacleLayer.setLabeling(QgsVectorLayerSimpleLabeling(obstacle_label_settings))
obstacleLayer.setLabelsEnabled(True)
self._TestMapSettings = self.cloneMapSettings(self._MapSettings)
self.lyr.placement = QgsPalLayerSettings.Horizontal
self.checkTest()
self.removeMapLayer(obstacleLayer)
self.removeMapLayer(self.layer)
self.layer = None
def test_polygon_line_obstacle_obstacle_factor_greater_equal(self):
# Test polygon label but obstacle exists with a greater obstacle factor vs label priority => NO LABEL
self.layer = TestQgsPalLabeling.loadFeatureLayer('polygon_center')
self.layer.setLabelsEnabled(True)
obstacleLayer = TestQgsPalLabeling.loadFeatureLayer('line_placement_4')
for label_priority in range(0, 11):
for obstacle_weight in range(label_priority + 1, 11):
obstacle_label_settings = QgsPalLayerSettings()
obstacle_label_settings.obstacle = True
obstacle_label_settings.drawLabels = False
obstacle_label_settings.obstacleFactor = obstacle_weight * 0.2
obstacleLayer.setLabeling(QgsVectorLayerSimpleLabeling(obstacle_label_settings))
obstacleLayer.setLabelsEnabled(True)
self._TestMapSettings = self.cloneMapSettings(self._MapSettings)
self.lyr.placement = QgsPalLayerSettings.OverPoint
self.lyr.priority = label_priority
self.checkTest()
self.removeMapLayer(obstacleLayer)
self.removeMapLayer(self.layer)
self.layer = None
def convert_label_engine_layer_properties(
properties: LabelEngineLayerProperties, layer_geometry_type,
context) -> QgsPalLayerSettings:
"""
Converts LabelEngineLayerProperties to QGIS equivalent
"""
label_settings = QgsPalLayerSettings()
label_settings.drawLabels = properties.label_features
LabelConverter.convert_label_text_symbol(properties.text_symbol,
label_settings, context)
label_settings.fieldName = ExpressionConverter.convert(
properties.expression, properties.expression_parser,
properties.advanced_expression, context)
label_settings.isExpression = True
LabelConverter.convert_overposter(properties.overposter,
layer_geometry_type, label_settings,
context)
label_settings.scaleVisibility = properties.scale_range_max or properties.scale_range_min
# layer.zoom_max = "don't show when zoomed out beyond"
zoom_max = properties.scale_range_max
# layer.zoom_min = "don't show when zoomed in beyond"
zoom_min = properties.scale_range_min
if zoom_max and zoom_min and zoom_min > zoom_max:
# inconsistent scale range -- zoom_max should be bigger number than zoom_min
zoom_min, zoom_max = zoom_max, zoom_min
# qgis maximum scale = don't show when zoomed in beyond, i.e. ArcGIS zoom_min
label_settings.maximumScale = zoom_min
# qgis minimum scale = don't show when zoomed out beyond, i.e. ArcGIS zoom_max
label_settings.minimumScale = zoom_max
return label_settings
def test_line_line_obstacle_obstacle_factor_less(self):
# Test line label but obstacle exists with a lower obstacle factor vs label priority => LABEL
self.layer = TestQgsPalLabeling.loadFeatureLayer('line_short')
self.layer.setLabelsEnabled(True)
obstacleLayer = TestQgsPalLabeling.loadFeatureLayer('line')
for label_priority in range(0, 11):
for obstacle_weight in range(0, label_priority):
obstacle_label_settings = QgsPalLayerSettings()
obstacle_label_settings.obstacle = True
obstacle_label_settings.drawLabels = False
obstacle_label_settings.obstacleFactor = obstacle_weight
obstacleLayer.setLabeling(
QgsVectorLayerSimpleLabeling(obstacle_label_settings))
obstacleLayer.setLabelsEnabled(True)
self._TestMapSettings = self.cloneMapSettings(
self._MapSettings)
self.lyr.placement = QgsPalLayerSettings.Line
self.lyr.priority = label_priority
self.checkTest()
self.removeMapLayer(obstacleLayer)
self.removeMapLayer(self.layer)
self.layer = None
def test_point_polygon_obstacle_obstacle_factor_greater_equal(self):
# Test point label but polygon obstacle exists with a greater than or equal to obstacle factor vs label priority => NO LABEL
self.layer = TestQgsPalLabeling.loadFeatureLayer('point')
obstacleLayer = TestQgsPalLabeling.loadFeatureLayer('narrow_polygon')
for label_priority in range(0, 10):
for obstacle_weight in range(label_priority, 11):
obstacle_label_settings = QgsPalLayerSettings()
obstacle_label_settings.obstacle = True
obstacle_label_settings.drawLabels = False
obstacle_label_settings.obstacleFactor = obstacle_weight
obstacleLayer.setLabeling(
QgsVectorLayerSimpleLabeling(obstacle_label_settings))
obstacleLayer.setLabelsEnabled(True)
self._TestMapSettings = self.cloneMapSettings(
self._MapSettings)
self.lyr.placement = QgsPalLayerSettings.OverPoint
self.lyr.quadOffset = QgsPalLayerSettings.QuadrantBelowRight
self.lyr.priority = label_priority
self.checkTest()
self.removeMapLayer(obstacleLayer)
self.removeMapLayer(self.layer)
self.layer = None
