def testFilterNeedsGeometry(self):
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute("value")
self.assertFalse(renderer.filterNeedsGeometry())
renderer.setClassAttribute("$area")
self.assertTrue(renderer.filterNeedsGeometry())
renderer.setClassAttribute("value - $area")
self.assertTrue(renderer.filterNeedsGeometry())
def _create_categorized_renderer(self):
cat_renderer = QgsCategorizedSymbolRenderer(attrName='Class')
sym1 = QgsMarkerSymbol.createSimple({'color': '#ff00ff', 'size': '6', 'outline_style': 'no'})
cat1 = QgsRendererCategory('Biplane', sym1, 'Big')
cat_renderer.addCategory(cat1)
sym2 = QgsMarkerSymbol.createSimple({'color': '#ff00ff', 'size': '3', 'outline_style': 'no'})
cat2 = QgsRendererCategory(['B52', 'Jet'], sym2, 'Smaller')
cat_renderer.addCategory(cat2)
return cat_renderer
def testUsedAttributes(self):
renderer = QgsCategorizedSymbolRenderer()
ctx = QgsRenderContext()
# attribute can contain either attribute name or an expression.
# Sometimes it is not possible to distinguish between those two,
# e.g. "a - b" can be both a valid attribute name or expression.
# Since we do not have access to fields here, the method should return both options.
renderer.setClassAttribute("value")
self.assertEqual(renderer.usedAttributes(ctx), {"value"})
renderer.setClassAttribute("value - 1")
self.assertEqual(renderer.usedAttributes(ctx), {"value", "value - 1"})
renderer.setClassAttribute("valuea - valueb")
self.assertEqual(renderer.usedAttributes(ctx), {"valuea", "valuea - valueb", "valueb"})
def testCategories(self):
layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer", "addfeat", "memory")
layer.setEditorWidgetSetup(1, QgsEditorWidgetSetup("ValueMap", {'map': [{'One': '1'}, {'Two': '2'}]}))
result = QgsCategorizedSymbolRenderer.createCategories([1, 2, 3], QgsMarkerSymbol(), layer, 'fldint')
self.assertEqual(result[0].label(), 'One')
self.assertEqual(result[1].label(), 'Two')
self.assertEqual(result[2].label(), '(3)')
def testFilterNeedsGeometry(self):
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute("value")
self.assertFalse(renderer.filterNeedsGeometry())
renderer.setClassAttribute("$area")
self.assertTrue(renderer.filterNeedsGeometry())
renderer.setClassAttribute("value - $area")
self.assertTrue(renderer.filterNeedsGeometry())
def testLegendRenderWithMapTheme(self):
"""Test rendering legends linked to map themes"""
QgsProject.instance().removeAllMapLayers()
point_path = os.path.join(TEST_DATA_DIR, 'points.shp')
point_layer = QgsVectorLayer(point_path, 'points', 'ogr')
line_path = os.path.join(TEST_DATA_DIR, 'lines.shp')
line_layer = QgsVectorLayer(line_path, 'lines', 'ogr')
QgsProject.instance().clear()
QgsProject.instance().addMapLayers([point_layer, line_layer])
marker_symbol = QgsMarkerSymbol.createSimple({
'color': '#ff0000',
'outline_style': 'no',
'size': '5'
})
point_layer.setRenderer(QgsSingleSymbolRenderer(marker_symbol))
point_layer.styleManager().addStyleFromLayer("red")
line_symbol = QgsLineSymbol.createSimple({
'color': '#ff0000',
'line_width': '2'
})
line_layer.setRenderer(QgsSingleSymbolRenderer(line_symbol))
line_layer.styleManager().addStyleFromLayer("red")
red_record = QgsMapThemeCollection.MapThemeRecord()
point_red_record = QgsMapThemeCollection.MapThemeLayerRecord(
point_layer)
point_red_record.usingCurrentStyle = True
point_red_record.currentStyle = 'red'
red_record.addLayerRecord(point_red_record)
line_red_record = QgsMapThemeCollection.MapThemeLayerRecord(line_layer)
line_red_record.usingCurrentStyle = True
line_red_record.currentStyle = 'red'
red_record.addLayerRecord(line_red_record)
QgsProject.instance().mapThemeCollection().insert('red', red_record)
marker_symbol1 = QgsMarkerSymbol.createSimple({
'color': '#0000ff',
'outline_style': 'no',
'size': '5'
})
marker_symbol2 = QgsMarkerSymbol.createSimple({
'color': '#0000ff',
'name': 'diamond',
'outline_style': 'no',
'size': '5'
})
marker_symbol3 = QgsMarkerSymbol.createSimple({
'color': '#0000ff',
'name': 'rectangle',
'outline_style': 'no',
'size': '5'
})
point_layer.setRenderer(
QgsCategorizedSymbolRenderer('Class', [
QgsRendererCategory('B52', marker_symbol1, ''),
QgsRendererCategory('Biplane', marker_symbol2, ''),
QgsRendererCategory('Jet', marker_symbol3, ''),
]))
point_layer.styleManager().addStyleFromLayer("blue")
line_symbol = QgsLineSymbol.createSimple({
'color': '#0000ff',
'line_width': '2'
})
line_layer.setRenderer(QgsSingleSymbolRenderer(line_symbol))
line_layer.styleManager().addStyleFromLayer("blue")
blue_record = QgsMapThemeCollection.MapThemeRecord()
point_blue_record = QgsMapThemeCollection.MapThemeLayerRecord(
point_layer)
point_blue_record.usingCurrentStyle = True
point_blue_record.currentStyle = 'blue'
blue_record.addLayerRecord(point_blue_record)
line_blue_record = QgsMapThemeCollection.MapThemeLayerRecord(
line_layer)
line_blue_record.usingCurrentStyle = True
line_blue_record.currentStyle = 'blue'
blue_record.addLayerRecord(line_blue_record)
QgsProject.instance().mapThemeCollection().insert('blue', blue_record)
layout = QgsLayout(QgsProject.instance())
layout.initializeDefaults()
map1 = QgsLayoutItemMap(layout)
map1.attemptSetSceneRect(QRectF(20, 20, 80, 80))
map1.setFrameEnabled(True)
map1.setLayers([point_layer, line_layer])
layout.addLayoutItem(map1)
map1.setExtent(point_layer.extent())
map1.setFollowVisibilityPreset(True)
map1.setFollowVisibilityPresetName('red')
map2 = QgsLayoutItemMap(layout)
map2.attemptSetSceneRect(QRectF(20, 120, 80, 80))
map2.setFrameEnabled(True)
map2.setLayers([point_layer, line_layer])
layout.addLayoutItem(map2)
map2.setExtent(point_layer.extent())
map2.setFollowVisibilityPreset(True)
map2.setFollowVisibilityPresetName('blue')
legend = QgsLayoutItemLegend(layout)
legend.setTitle("Legend")
legend.attemptSetSceneRect(QRectF(120, 20, 80, 80))
legend.setFrameEnabled(True)
legend.setFrameStrokeWidth(QgsLayoutMeasurement(2))
legend.setBackgroundColor(QColor(200, 200, 200))
legend.setTitle('')
layout.addLayoutItem(legend)
legend.setLinkedMap(map1)
legend2 = QgsLayoutItemLegend(layout)
legend2.setTitle("Legend")
legend2.attemptSetSceneRect(QRectF(120, 120, 80, 80))
legend2.setFrameEnabled(True)
legend2.setFrameStrokeWidth(QgsLayoutMeasurement(2))
legend2.setBackgroundColor(QColor(200, 200, 200))
legend2.setTitle('')
layout.addLayoutItem(legend2)
legend2.setLinkedMap(map2)
checker = QgsLayoutChecker('composer_legend_theme', layout)
checker.setControlPathPrefix("composer_legend")
result, message = checker.testLayout()
self.report += checker.report()
self.assertTrue(result, message)
QgsProject.instance().clear()
def testMatchToSymbols(self):
"""
Test QgsCategorizedSymbolRender.matchToSymbols
"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c ', symbol_c, 'c'))
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(None, QgsSymbol.Marker)
self.assertEqual(matched, 0)
style = QgsStyle()
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 10, 10))
self.assertTrue(style.addSymbol('a', symbol_a))
symbol_B = createMarkerSymbol()
symbol_B.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('B ', symbol_B))
symbol_b = createFillSymbol()
symbol_b.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('b', symbol_b))
symbol_C = createLineSymbol()
symbol_C.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('C', symbol_C))
symbol_C = createMarkerSymbol()
symbol_C.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol(' ----c/- ', symbol_C))
# non-matching symbol type
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Line)
self.assertEqual(matched, 0)
self.assertEqual(unmatched_cats, ['a', 'b', 'c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'B ', 'C', 'a', 'b'])
# exact match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker)
self.assertEqual(matched, 1)
self.assertEqual(unmatched_cats, ['b', 'c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'B ', 'C', 'b'])
# make sure symbol was applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
renderer.stopRender(context)
# case insensitive match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# case insensitive match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# tolerant match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, True, True)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['b'])
self.assertEqual(unmatched_symbols, ['B ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('c ')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# tolerant match, case insensitive
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False, True)
self.assertEqual(matched, 3)
self.assertFalse(unmatched_cats)
self.assertEqual(unmatched_symbols, ['C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
symbol, ok = renderer.symbolForValue2('c ')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
def test_displayString(self):
"""Test the displayString method"""
# Default locale for tests is EN
original_locale = QLocale()
locale = QLocale(QLocale.English)
locale.setNumberOptions(QLocale.DefaultNumberOptions)
QLocale().setDefault(locale)
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234.56), "1,234.56")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234.56, 4), "1,234.5600")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234567), "1,234,567")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234567.0, 4), "1,234,567.0000")
# Precision is ignored for integers
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234567, 4), "1,234,567")
# Test list
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567, 891234], 4), "1,234,567;891,234")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567.123, 891234.123], 4), "1,234,567.1230;891,234.1230")
locale.setNumberOptions(QLocale.OmitGroupSeparator)
QLocale().setDefault(locale)
self.assertTrue(QLocale().numberOptions() & QLocale.OmitGroupSeparator)
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567, 891234], 4), "1234567;891234")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567.123, 891234.123], 4), "1234567.1230;891234.1230")
# Test a non-dot locale
locale = QLocale(QLocale.Italian)
locale.setNumberOptions(QLocale.DefaultNumberOptions)
QLocale().setDefault(locale)
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234.56), "1.234,56")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234.56, 4), "1.234,5600")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234567), "1.234.567")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234567.0, 4), "1.234.567,0000")
# Precision is ignored for integers
self.assertEqual(QgsCategorizedSymbolRenderer.displayString(1234567, 4), "1.234.567")
# Test list
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567, 891234], 4), "1.234.567;891.234")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567.123, 891234.123], 4), "1.234.567,1230;891.234,1230")
locale.setNumberOptions(QLocale.OmitGroupSeparator)
QLocale().setDefault(locale)
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567, 891234], 4), "1234567;891234")
self.assertEqual(QgsCategorizedSymbolRenderer.displayString([1234567.123, 891234.123], 4), "1234567,1230;891234,1230")
QLocale().setDefault(original_locale)
def testSymbolForValue(self):
"""Test symbolForValue"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('field')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertEqual(symbol.color(), QColor(255, 0, 0))
self.assertTrue(ok)
symbol, ok = renderer.symbolForValue2('b')
self.assertEqual(symbol.color(), QColor(0, 255, 0))
self.assertTrue(ok)
# hidden category
symbol, ok = renderer.symbolForValue2('c')
self.assertIsNone(symbol)
self.assertTrue(ok)
# no matching category
symbol, ok = renderer.symbolForValue2('xxxx')
self.assertIsNone(symbol)
self.assertFalse(ok)
renderer.stopRender(context)
def testSymbolForValue(self):
"""Test symbolForValue"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('field')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertEqual(symbol.color(), QColor(255, 0, 0))
self.assertTrue(ok)
symbol, ok = renderer.symbolForValue2('b')
self.assertEqual(symbol.color(), QColor(0, 255, 0))
self.assertTrue(ok)
# hidden category
symbol, ok = renderer.symbolForValue2('c')
self.assertIsNone(symbol)
self.assertTrue(ok)
# no matching category
symbol, ok = renderer.symbolForValue2('xxxx')
self.assertIsNone(symbol)
self.assertFalse(ok)
renderer.stopRender(context)
def testLegendKeysWhileCounting(self):
# test determining legend keys for features, while counting features
fields = QgsFields()
fields.append(QgsField('x'))
# setup renderer
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
context.setRendererScale(0) # simulate counting
renderer.startRender(context, fields)
f = QgsFeature(fields)
f.setAttributes(['a'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'0'})
f.setAttributes(['b'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'1'})
# hidden category, should still return keys
f.setAttributes(['c'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'2'})
# no matching category
f.setAttributes(['xxx'])
keys = renderer.legendKeysForFeature(f, context)
self.assertFalse(keys)
renderer.stopRender(context)
def open_file(dialog: QDialog = None,
osm_file: str = None,
output_geom_types: list = None,
white_list_column: dict = None,
key: Union[str, List[str]] = None,
layer_name: str = "OsmFile",
config_outputs: dict = None,
output_dir: str = None,
output_format: Format = None,
final_query: str = None,
prefix_file: str = None,
subset: bool = False,
subset_query: str = None,
feedback: QgsFeedback = None) -> int:
"""
Open an osm file.
Memory layer if no output directory is set, or Geojson in the output
directory.
:param final_query: The query where the file comes from. Might be empty if
it's a local OSM file.
:type final_query: basestring
"""
if output_geom_types is None:
output_geom_types = OSM_LAYERS
# Legacy, waiting to remove the OsmParser for QGIS >= 3.6
# Change in osm_file_dialog.py L131 too
output_geom_legacy = [geom.value.lower() for geom in output_geom_types]
if not white_list_column:
white_list_column = None
LOGGER.info('The OSM file is: {}'.format(osm_file))
if feedback:
if feedback.isCanceled():
return None
# Parsing the file
osm_parser = OsmParser(osm_file=osm_file,
layers=output_geom_legacy,
output_format=output_format,
output_dir=output_dir,
prefix_file=prefix_file,
layer_name=layer_name,
key=key,
white_list_column=white_list_column,
subset=subset,
subset_query=subset_query,
feedback=feedback)
if dialog:
osm_parser.signalText.connect(dialog.set_progress_text)
osm_parser.signalPercentage.connect(dialog.set_progress_percentage)
start_time = time.time()
layers = osm_parser.processing_parse()
elapsed_time = time.time() - start_time
parser_time = time.strftime("%Hh %Mm %Ss", time.gmtime(elapsed_time))
LOGGER.info('The OSM parser took: {}'.format(parser_time))
if feedback:
if feedback.isCanceled():
return None
# Finishing the process with an output format or memory layer
num_layers = 0
for i, (layer, item) in enumerate(layers.items()):
if dialog:
dialog.set_progress_percentage(i / len(layers) * 100)
QApplication.processEvents()
if item['featureCount'] and (LayerType(layer.capitalize())
in output_geom_types):
final_layer_name = layer_name
# If configOutputs is not None (from My Queries)
if config_outputs:
if config_outputs[layer]['namelayer']:
final_layer_name = config_outputs[layer]['namelayer']
new_layer = item['vector_layer']
new_layer.setName(final_layer_name)
# Try to set styling if defined
if config_outputs and config_outputs[layer]['style']:
new_layer.loadNamedStyle(config_outputs[layer]['style'])
else:
if "colour" in item['tags']:
index = item['tags'].index('colour')
colors = new_layer.uniqueValues(index)
categories = []
for value in colors:
if str(value) == 'None':
value = ''
if layer in ['lines', 'multilinestrings']:
symbol = QgsSymbol.defaultSymbol(
QgsWkbTypes.LineGeometry)
elif layer == "points":
symbol = QgsSymbol.defaultSymbol(
QgsWkbTypes.PointGeometry)
elif layer == "multipolygons":
symbol = QgsSymbol.defaultSymbol(
QgsWkbTypes.PolygonGeometry)
symbol.setColor(QColor(value))
category = QgsRendererCategory(str(value), symbol,
str(value))
categories.append(category)
renderer = QgsCategorizedSymbolRenderer(
"colour", categories)
new_layer.setRenderer(renderer)
# Add action about OpenStreetMap
actions.add_actions(new_layer, item['tags'])
QgsProject.instance().addMapLayer(new_layer)
if final_query:
QgsExpressionContextUtils.setLayerVariable(
new_layer, 'quickosm_query', final_query)
actions.add_relaunch_action(new_layer, final_layer_name)
if dialog:
dialog.iface.addCustomActionForLayer(
dialog.reload_action, new_layer)
metadata = QgsLayerMetadata()
metadata.setRights([tr("© OpenStreetMap contributors")])
metadata.setLicenses(['https://openstreetmap.org/copyright'])
new_layer.setMetadata(metadata)
num_layers += 1
return num_layers
def testWriteReadXml(self):
# test writing renderer to xml and restoring
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
symbol_d = createMarkerSymbol()
symbol_d.setColor(QColor(255, 0, 255))
renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
doc = QDomDocument("testdoc")
elem = renderer.save(doc, QgsReadWriteContext())
renderer2 = QgsCategorizedSymbolRenderer.create(elem, QgsReadWriteContext())
self.assertEqual(renderer2.classAttribute(), 'x')
self.assertEqual([l.label() for l in renderer2.categories()], ['a', 'b', 'c', 'de', 'default'])
self.assertEqual([l.value() for l in renderer2.categories()], ['a', 'b', 'c', ['d', 'e'], ''])
self.assertEqual([l.symbol().color().name() for l in renderer2.categories()], ['#ff0000', '#00ff00', '#0000ff', '#ff00ff', '#ffffff'])
def testUsedAttributes(self):
renderer = QgsCategorizedSymbolRenderer()
ctx = QgsRenderContext()
# attribute can contain either attribute name or an expression.
# Sometimes it is not possible to distinguish between those two,
# e.g. "a - b" can be both a valid attribute name or expression.
# Since we do not have access to fields here, the method should return both options.
renderer.setClassAttribute("value")
self.assertEqual(renderer.usedAttributes(ctx), {"value"})
renderer.setClassAttribute("value - 1")
self.assertEqual(renderer.usedAttributes(ctx), {"value", "value - 1"})
renderer.setClassAttribute("valuea - valueb")
self.assertEqual(renderer.usedAttributes(ctx), {"valuea", "valuea - valueb", "valueb"})
def testMatchToSymbols(self):
"""
Test QgsCategorizedSymbolRender.matchToSymbols
"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c ', symbol_c, 'c'))
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(None, QgsSymbol.Marker)
self.assertEqual(matched, 0)
style = QgsStyle()
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 10, 10))
self.assertTrue(style.addSymbol('a', symbol_a))
symbol_B = createMarkerSymbol()
symbol_B.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('B ', symbol_B))
symbol_b = createFillSymbol()
symbol_b.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('b', symbol_b))
symbol_C = createLineSymbol()
symbol_C.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol('C', symbol_C))
symbol_C = createMarkerSymbol()
symbol_C.setColor(QColor(10, 255, 10))
self.assertTrue(style.addSymbol(' ----c/- ', symbol_C))
# non-matching symbol type
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Line)
self.assertEqual(matched, 0)
self.assertEqual(unmatched_cats, ['a', 'b', 'c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'B ', 'C', 'a', 'b'])
# exact match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker)
self.assertEqual(matched, 1)
self.assertEqual(unmatched_cats, ['b', 'c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'B ', 'C', 'b'])
# make sure symbol was applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
renderer.stopRender(context)
# case insensitive match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# case insensitive match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['c '])
self.assertEqual(unmatched_symbols, [' ----c/- ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# tolerant match
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, True, True)
self.assertEqual(matched, 2)
self.assertEqual(unmatched_cats, ['b'])
self.assertEqual(unmatched_symbols, ['B ', 'C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('c ')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
# tolerant match, case insensitive
matched, unmatched_cats, unmatched_symbols = renderer.matchToSymbols(style, QgsSymbol.Marker, False, True)
self.assertEqual(matched, 3)
self.assertFalse(unmatched_cats)
self.assertEqual(unmatched_symbols, ['C', 'b'])
# make sure symbols were applied
context = QgsRenderContext()
renderer.startRender(context, QgsFields())
symbol, ok = renderer.symbolForValue2('a')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#ff0a0a')
symbol, ok = renderer.symbolForValue2('b')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
symbol, ok = renderer.symbolForValue2('c ')
self.assertTrue(ok)
self.assertEqual(symbol.color().name(), '#0aff0a')
renderer.stopRender(context)
def testLegendKeysWhileCounting(self):
# test determining legend keys for features, while counting features
fields = QgsFields()
fields.append(QgsField('x'))
# setup renderer
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
symbol_d = createMarkerSymbol()
symbol_d.setColor(QColor(255, 0, 255))
renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
context.setRendererScale(0) # simulate counting
renderer.startRender(context, fields)
f = QgsFeature(fields)
f.setAttributes(['a'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'0'})
f.setAttributes(['b'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'1'})
# hidden category, should still return keys
f.setAttributes(['c'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'2'})
# list
f.setAttributes(['d'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'3'})
f.setAttributes(['e'])
keys = renderer.legendKeysForFeature(f, context)
self.assertEqual(keys, {'3'})
# no matching category
f.setAttributes(['xxx'])
keys = renderer.legendKeysForFeature(f, context)
self.assertFalse(keys)
renderer.stopRender(context)
def testOriginalSymbolForFeature(self):
# test renderer with features
fields = QgsFields()
fields.append(QgsField('x'))
# setup renderer
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
symbol_d = createMarkerSymbol()
symbol_d.setColor(QColor(255, 0, 255))
renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
renderer.startRender(context, fields)
f = QgsFeature(fields)
f.setAttributes(['a'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(255, 0, 0))
f.setAttributes(['b'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(0, 255, 0))
# list
f.setAttributes(['d'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(255, 0, 255))
f.setAttributes(['e'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(255, 0, 255))
# hidden category
f.setAttributes(['c'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertIsNone(symbol)
# no matching category
f.setAttributes(['xxx'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(255, 255, 255)) # default symbol
renderer.stopRender(context)
def stylePoly(self, layer, metric: str):
"""
Style isochrone polygon layer.
:param QgsVectorLayer layer: Polygon layer to be styled.
:param str metric: distance or time.
"""
field = layer.fields().lookupField('contour')
unique_values = sorted(layer.uniqueValues(field))
colors = {
"distance": {
0: QColor('#FCF0EE'),
1: QColor('#F9E1DC'),
2: QColor('#F6D2CB'),
3: QColor('#F3C3BA'),
4: QColor('#F0B3A8'),
5: QColor('#EDA396'),
6: QColor('#EA9485'),
7: QColor('#E78573'),
8: QColor('#E47662'),
9: QColor('#E16651')
},
"time": {
0: QColor('#2b83ba'),
1: QColor('#64abb0'),
2: QColor('#9dd3a7'),
3: QColor('#c7e9ad'),
4: QColor('#edf8b9'),
5: QColor('#ffedaa'),
6: QColor('#fec980'),
7: QColor('#f99e59'),
8: QColor('#e85b3a'),
9: QColor('#d7191c')
}
}
categories = []
for cid, unique_value in enumerate(unique_values):
# initialize the default symbol for this geometry type
symbol = QgsSymbol.defaultSymbol(layer.geometryType())
# configure a symbol layer
symbol_layer = QgsSimpleFillSymbolLayer(
color=colors[metric][cid], strokeColor=QColor('#000000'))
# 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) + ' mins')
# entry for the list of category items
categories.append(category)
# create renderer object
renderer = QgsCategorizedSymbolRenderer('contour', categories)
# assign the created renderer to the layer
if renderer is not None:
layer.setRenderer(renderer)
layer.setOpacity(0.5)
layer.triggerRepaint()
def testWriteReadXml(self):
# test writing renderer to xml and restoring
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
symbol_d = createMarkerSymbol()
symbol_d.setColor(QColor(255, 0, 255))
renderer.addCategory(QgsRendererCategory(['d', 'e'], symbol_d, 'de'))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
doc = QDomDocument("testdoc")
elem = renderer.save(doc, QgsReadWriteContext())
renderer2 = QgsCategorizedSymbolRenderer.create(elem, QgsReadWriteContext())
self.assertEqual(renderer2.classAttribute(), 'x')
self.assertEqual([l.label() for l in renderer2.categories()], ['a', 'b', 'c', 'de', 'default'])
self.assertEqual([l.value() for l in renderer2.categories()], ['a', 'b', 'c', ['d', 'e'], ''])
self.assertEqual([l.symbol().color().name() for l in renderer2.categories()], ['#ff0000', '#00ff00', '#0000ff', '#ff00ff', '#ffffff'])
def legend_test(self):
self.atlas_map.setAtlasDriven(True)
self.atlas_map.setAtlasScalingMode(QgsLayoutItemMap.Auto)
self.atlas_map.setAtlasMargin(0.10)
# add a point layer
ptLayer = QgsVectorLayer(
"Point?crs=epsg:4326&field=attr:int(1)&field=label:string(20)",
"points", "memory")
pr = ptLayer.dataProvider()
f1 = QgsFeature(1)
f1.initAttributes(2)
f1.setAttribute(0, 1)
f1.setAttribute(1, "Test label 1")
f1.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(-0.638, 48.954)))
f2 = QgsFeature(2)
f2.initAttributes(2)
f2.setAttribute(0, 2)
f2.setAttribute(1, "Test label 2")
f2.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(-1.682, 48.550)))
pr.addFeatures([f1, f2])
# categorized symbology
r = QgsCategorizedSymbolRenderer("attr", [
QgsRendererCategory(
1,
QgsMarkerSymbol.createSimple({
"color": "255,0,0",
'outline_color': 'black'
}), "red"),
QgsRendererCategory(
2,
QgsMarkerSymbol.createSimple({
"color": "0,0,255",
'outline_color': 'black'
}), "blue")
])
ptLayer.setRenderer(r)
QgsProject.instance().addMapLayer(ptLayer)
# add the point layer to the map settings
layers = self.layers
layers = [ptLayer] + layers
self.atlas_map.setLayers(layers)
self.overview.setLayers(layers)
# add a legend
legend = QgsLayoutItemLegend(self.layout)
legend.rstyle(QgsLegendStyle.Title).setFont(
QgsFontUtils.getStandardTestFont('Bold', 20))
legend.rstyle(QgsLegendStyle.Group).setFont(
QgsFontUtils.getStandardTestFont('Bold', 18))
legend.rstyle(QgsLegendStyle.Subgroup).setFont(
QgsFontUtils.getStandardTestFont('Bold', 18))
legend.rstyle(QgsLegendStyle.SymbolLabel).setFont(
QgsFontUtils.getStandardTestFont('Bold', 14))
legend.setTitle("Legend")
legend.attemptMove(QgsLayoutPoint(200, 100))
# sets the legend filter parameter
legend.setLinkedMap(self.atlas_map)
legend.setLegendFilterOutAtlas(True)
self.layout.addLayoutItem(legend)
self.atlas.beginRender()
self.atlas.seekTo(0)
self.mLabel1.adjustSizeToText()
checker = QgsLayoutChecker('atlas_legend', self.layout)
myTestResult, myMessage = checker.testLayout()
self.report += checker.report()
self.assertTrue(myTestResult, myMessage)
self.atlas.endRender()
# restore state
self.atlas_map.setLayers([layers[1]])
self.layout.removeLayoutItem(legend)
QgsProject.instance().removeMapLayer(ptLayer.id())
def testFilterExpression(self):
"""Test filter creation with expression"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute("field + field2")
renderer.addCategory(QgsRendererCategory("a", createMarkerSymbol(), "a"))
renderer.addCategory(QgsRendererCategory("b", createMarkerSymbol(), "b"))
renderer.addCategory(QgsRendererCategory("c", createMarkerSymbol(), "c"))
# add default category
renderer.addCategory(QgsRendererCategory("", createMarkerSymbol(), "default"))
fields = QgsFields()
fields.append(QgsField("field", QVariant.String))
self.assertEqual(renderer.filter(fields), "")
# remove categories, leaving default
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a') OR (field + field2) IS NULL")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a','b') OR (field + field2) IS NULL")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a','b','c') OR (field + field2) IS NULL")
# remove default category
assert renderer.updateCategoryRenderState(3, False)
self.assertEqual(renderer.filter(fields), "FALSE")
# add back other categories, leaving default disabled
assert renderer.updateCategoryRenderState(0, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a')")
assert renderer.updateCategoryRenderState(1, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b')")
assert renderer.updateCategoryRenderState(2, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b','c')")
renderer.deleteAllCategories()
# just default category
renderer.addCategory(QgsRendererCategory("", createMarkerSymbol(), "default"))
self.assertEqual(renderer.filter(fields), "")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "FALSE")
renderer.deleteAllCategories()
# no default category
renderer.addCategory(QgsRendererCategory("a", createMarkerSymbol(), "a"))
renderer.addCategory(QgsRendererCategory("b", createMarkerSymbol(), "b"))
renderer.addCategory(QgsRendererCategory("c", createMarkerSymbol(), "c"))
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b','c')")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('b','c')")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('b')")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
renderer.deleteAllCategories()
# numeric categories
renderer.addCategory(QgsRendererCategory(1, createMarkerSymbol(), "a"))
renderer.addCategory(QgsRendererCategory(2, createMarkerSymbol(), "b"))
renderer.addCategory(QgsRendererCategory(3, createMarkerSymbol(), "c"))
self.assertEqual(renderer.filter(fields), "(field + field2) IN (1,2,3)")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN (2,3)")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN (2)")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
def testConvertFromCategorisedRenderer(self):
# Test converting categorised renderer to rule based
# First, try with a field based category (id)
cats = []
cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "id 1"))
cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "id 2"))
cats.append(QgsRendererCategory('a\'b', QgsMarkerSymbol(), "id a'b"))
cats.append(QgsRendererCategory('a\nb', QgsMarkerSymbol(), "id a\\nb"))
cats.append(QgsRendererCategory('a\\b', QgsMarkerSymbol(),
"id a\\\\b"))
cats.append(QgsRendererCategory('a\tb', QgsMarkerSymbol(), "id a\\tb"))
cats.append(QgsRendererCategory(['c', 'd'], QgsMarkerSymbol(), "c/d"))
c = QgsCategorizedSymbolRenderer("id", cats)
r = QgsRuleBasedRenderer.convertFromRenderer(c)
self.assertEqual(len(r.rootRule().children()), 7)
self.assertEqual(r.rootRule().children()[0].filterExpression(),
'"id" = 1')
self.assertEqual(r.rootRule().children()[1].filterExpression(),
'"id" = 2')
self.assertEqual(r.rootRule().children()[2].filterExpression(),
'"id" = \'a\'\'b\'')
self.assertEqual(r.rootRule().children()[3].filterExpression(),
'"id" = \'a\\nb\'')
self.assertEqual(r.rootRule().children()[4].filterExpression(),
'"id" = \'a\\\\b\'')
self.assertEqual(r.rootRule().children()[5].filterExpression(),
'"id" = \'a\\tb\'')
self.assertEqual(r.rootRule().children()[6].filterExpression(),
'"id" IN (\'c\',\'d\')')
# Next try with an expression based category
cats = []
cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
cats.append(
QgsRendererCategory([3, 4], QgsMarkerSymbol(), "result 3/4"))
c = QgsCategorizedSymbolRenderer("id + 1", cats)
r = QgsRuleBasedRenderer.convertFromRenderer(c)
self.assertEqual(len(r.rootRule().children()), 3)
self.assertEqual(r.rootRule().children()[0].filterExpression(),
'id + 1 = 1')
self.assertEqual(r.rootRule().children()[1].filterExpression(),
'id + 1 = 2')
self.assertEqual(r.rootRule().children()[2].filterExpression(),
'id + 1 IN (3,4)')
# Last try with an expression which is just a quoted field name
cats = []
cats.append(QgsRendererCategory(1, QgsMarkerSymbol(), "result 1"))
cats.append(QgsRendererCategory(2, QgsMarkerSymbol(), "result 2"))
cats.append(
QgsRendererCategory([3, 4], QgsMarkerSymbol(), "result 3/4"))
c = QgsCategorizedSymbolRenderer('"id"', cats)
r = QgsRuleBasedRenderer.convertFromRenderer(c)
self.assertEqual(len(r.rootRule().children()), 3)
self.assertEqual(r.rootRule().children()[0].filterExpression(),
'"id" = 1')
self.assertEqual(r.rootRule().children()[1].filterExpression(),
'"id" = 2')
self.assertEqual(r.rootRule().children()[2].filterExpression(),
'"id" IN (3,4)')
def testOriginalSymbolForFeature(self):
# test renderer with features
fields = QgsFields()
fields.append(QgsField('x'))
# setup renderer
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('x')
symbol_a = createMarkerSymbol()
symbol_a.setColor(QColor(255, 0, 0))
renderer.addCategory(QgsRendererCategory('a', symbol_a, 'a'))
symbol_b = createMarkerSymbol()
symbol_b.setColor(QColor(0, 255, 0))
renderer.addCategory(QgsRendererCategory('b', symbol_b, 'b'))
symbol_c = createMarkerSymbol()
symbol_c.setColor(QColor(0, 0, 255))
renderer.addCategory(QgsRendererCategory('c', symbol_c, 'c', False))
# add default category
default_symbol = createMarkerSymbol()
default_symbol.setColor(QColor(255, 255, 255))
renderer.addCategory(QgsRendererCategory('', default_symbol, 'default'))
context = QgsRenderContext()
renderer.startRender(context, fields)
f = QgsFeature(fields)
f.setAttributes(['a'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(255, 0, 0))
f.setAttributes(['b'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(0, 255, 0))
# hidden category
f.setAttributes(['c'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertIsNone(symbol)
# no matching category
f.setAttributes(['xxx'])
symbol = renderer.originalSymbolForFeature(f, context)
self.assertEqual(symbol.color(), QColor(255, 255, 255)) # default symbol
renderer.stopRender(context)
def testFilterExpression(self):
"""Test filter creation with expression"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('field + field2')
renderer.addCategory(QgsRendererCategory('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategory('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategory('c', createMarkerSymbol(), 'c'))
# add default category
renderer.addCategory(QgsRendererCategory('', createMarkerSymbol(), 'default'))
fields = QgsFields()
fields.append(QgsField('field', QVariant.String))
self.assertEqual(renderer.filter(fields), '')
# remove categories, leaving default
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a') OR (field + field2) IS NULL")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a','b') OR (field + field2) IS NULL")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a','b','c') OR (field + field2) IS NULL")
# remove default category
assert renderer.updateCategoryRenderState(3, False)
self.assertEqual(renderer.filter(fields), "FALSE")
# add back other categories, leaving default disabled
assert renderer.updateCategoryRenderState(0, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a')")
assert renderer.updateCategoryRenderState(1, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b')")
assert renderer.updateCategoryRenderState(2, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b','c')")
renderer.deleteAllCategories()
# just default category
renderer.addCategory(QgsRendererCategory('', createMarkerSymbol(), 'default'))
self.assertEqual(renderer.filter(fields), '')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), 'FALSE')
renderer.deleteAllCategories()
# no default category
renderer.addCategory(QgsRendererCategory('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategory('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategory('c', createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b','c')")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('b','c')")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('b')")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
renderer.deleteAllCategories()
# numeric categories
renderer.addCategory(QgsRendererCategory(1, createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategory(2, createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategory(3, createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), '(field + field2) IN (1,2,3)')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN (2,3)")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN (2)")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
def testFilter(self):
"""Test filter creation"""
renderer = QgsCategorizedSymbolRenderer()
renderer.setClassAttribute('field')
renderer.addCategory(QgsRendererCategory('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategory('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategory('c', createMarkerSymbol(), 'c'))
# add default category
renderer.addCategory(QgsRendererCategory('', createMarkerSymbol(), 'default'))
fields = QgsFields()
fields.append(QgsField('field', QVariant.String))
fields.append(QgsField('num', QVariant.Double))
self.assertEqual(renderer.filter(fields), '')
# remove categories, leaving default
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(\"field\") NOT IN ('a') OR (\"field\") IS NULL")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "(\"field\") NOT IN ('a','b') OR (\"field\") IS NULL")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(\"field\") NOT IN ('a','b','c') OR (\"field\") IS NULL")
# remove default category
assert renderer.updateCategoryRenderState(3, False)
self.assertEqual(renderer.filter(fields), "FALSE")
# add back other categories, leaving default disabled
assert renderer.updateCategoryRenderState(0, True)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a')")
assert renderer.updateCategoryRenderState(1, True)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a','b')")
assert renderer.updateCategoryRenderState(2, True)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a','b','c')")
renderer.deleteAllCategories()
# just default category
renderer.addCategory(QgsRendererCategory('', createMarkerSymbol(), 'default'))
self.assertEqual(renderer.filter(fields), '')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), 'FALSE')
renderer.deleteAllCategories()
# no default category
renderer.addCategory(QgsRendererCategory('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategory('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategory('c', createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a','b','c')")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('b','c')")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('b')")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
renderer.deleteAllCategories()
renderer.setClassAttribute('num')
# numeric categories
renderer.addCategory(QgsRendererCategory(1, createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategory(2, createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategory(3, createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), '(\"num\") IN (1,2,3)')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(\"num\") IN (2,3)")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(\"num\") IN (2)")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
def processAlgorithm(self, parameters, context, feedback):
project = QgsProject()
project.setFileName(
os.path.join(parameters[self.FOLDER], "all-outputs-qgis.qgs"))
project.setCrs(QgsCoordinateReferenceSystem('EPSG:27700'))
def getMaxValue(layer, fieldname):
maxfound = float("-inf")
for f in layer.getFeatures():
attr = f.attribute(fieldname)
assert attr >= 0
if attr > maxfound:
maxfound = attr
return maxfound
with open(
os.path.join(parameters[self.FOLDER],
"all-town-metadata.json")) as f:
metadata = json.load(f)
classmethods = {
'quantile': QgsClassificationQuantile,
'jenks': QgsClassificationJenks,
'equal': QgsClassificationEqualInterval
}
html = ""
output = []
views_sorted_by_mode = sorted(metadata["views"],
key=lambda v: v["mode"])
for view in views_sorted_by_mode:
keysymbol = u'🔑'
viewname = view["label"]
keysign = ""
if viewname.find(keysymbol) != -1:
viewname = viewname.replace(keysymbol, '', 1)
keysign = "*** "
viewname = keysign + view["mode"] + " " + viewname
html += f"""
<h2>{viewname}</h2>
{view["description"]}
<ul>
"""
for layer in view["layers"]:
layername = viewname + " - " + layer["scalar_field_units"]
layerpath = os.path.join(parameters[self.FOLDER],
layer["file"])
vlayer = QgsVectorLayer(layerpath, layername, "ogr")
if not vlayer.isValid():
feedback.pushInfo("Layer failed to load: " + layerpath)
else:
context.temporaryLayerStore().addMapLayer(vlayer)
html += f"""<li><b>file:</b> {layer["file"]}"""
if "symbol_field" in layer:
html += f"""<ul>
<li><b>symbol field:</b> {layer["symbol_field"]}
</ul>
"""
categories = []
scalar_fieldname = layer["scalar_field"]
maxvalue = getMaxValue(vlayer, scalar_fieldname)
feedback.pushInfo("Max value for %s is %f" %
(scalar_fieldname, maxvalue))
for formality in ["I", "F"]:
for severity, colour in [(3, 'red'), (2, 'yellow'),
(1, 'green')]:
colour = {
("I", "red"): "#FF0000",
("I", "yellow"): "#FFFF00",
("I", "green"): "#00FF00",
("F", "red"): "#FF9999",
("F", "yellow"): "#FFFF66",
("F", "green"): "#99FF99",
}[(formality, colour)]
symbol_code = "%s%d" % (formality, severity)
if formality == "F":
symbol = QgsMarkerSymbol.createSimple({
'color':
colour,
'size':
'3',
'outline_color':
'#888888'
})
else:
assert (formality == "I")
symbol = QgsMarkerSymbol.createSimple({
'color':
colour,
'size':
'3',
'outline_color':
'#000000',
'name':
'star'
})
objTransf = QgsSizeScaleTransformer(
QgsSizeScaleTransformer.Flannery,
0, #minvalue
maxvalue, #maxvalue
3, #minsize
10, #maxsize
0, #nullsize
1) #exponent
objProp = QgsProperty()
objProp.setField(scalar_fieldname)
objProp.setTransformer(objTransf)
symbol.setDataDefinedSize(objProp)
label = {
"F": "Formal",
"I": "Informal"
}[formality] + " " + {
3: "Major",
2: "Secondary",
1: "Tertiary"
}[severity]
cat = QgsRendererCategory(
symbol_code, symbol, label, True)
categories.append(cat)
renderer = QgsCategorizedSymbolRenderer(
"Crossings", categories)
renderer.setClassAttribute(layer["symbol_field"])
vlayer.setRenderer(renderer)
else:
html += f"""<ul>
<li><b>field:</b> {layer["scalar_field"]}
<li><b>units:</b> {layer["scalar_field_units"]}
<li><b>recommended classification:</b> {layer["classes"]}
</ul>
"""
default_style = QgsStyle().defaultStyle()
color_ramp = default_style.colorRamp('bt')
renderer = QgsGraduatedSymbolRenderer()
renderer.setClassAttribute(layer["scalar_field"])
classmethod = classmethods[layer["classes"]]()
renderer.setClassificationMethod(classmethod)
renderer.updateClasses(vlayer, 5)
renderer.updateColorRamp(color_ramp)
vlayer.setRenderer(renderer)
project.addMapLayer(vlayer)
feedback.pushInfo("Loaded " + layerpath)
html += "</ul>"
project.write()
town = views_sorted_by_mode[0]["town"]
with open(os.path.join(parameters[self.FOLDER], "metadata.html"),
"w") as htmlfile:
htmlfile.write(
f"<html><head><title>{town} metadata</title></head><body><h1>{town}</h1>{html}</body></html>"
)
return {self.OUTPUT: output}