def calculate(self):
overwrite = self.checkBoxRemovePrevious.isChecked()
LOG.debug("isochrones layer name = {}".format(self.getBasename()))
try:
point = self.originSearchBox.point
except WrongLocationException as e:
pushWarning(
self.tr("Invalid location: {error_message}").format(
error_message=str(e)
)
)
return
try:
intervals = self.getInterval()
if not (1 <= len(intervals) <= 10):
raise Exception(
self.tr("Must have at least one and maximum 10 intervals.")
)
except Exception as e:
pushWarning("Invalid intervals: %s" % str(e))
return
vehicle = self.comboBoxVehicles.currentIndex()
profile, costingOptions = vehicles.options_for_vehicle(vehicle)
is_isodistance = (
self.comboBoxReachabilityMode.currentText()
== self.reachabilityMode["isodistance"]
)
costingOptions["shortest"] = is_isodistance
colors = []
try:
colors = self.getColorFromInterval()
generateIsochrones(
point,
profile,
costingOptions,
intervals,
colors,
self.getBasename(),
overwrite,
)
except OverwriteError as e:
LOG.error(e)
pushWarning(
self.tr("Please change the basename or activate the overwrite checkbox")
)
except Valhalla400Exception as e:
# Expecting the content can be parsed as JSON, see
# https://valhalla.readthedocs.io/en/latest/api/turn-by-turn/api-reference/#http-status-codes-and-conditions
json_error = json.loads(str(e))
pushWarning(
self.tr('Can not generate the error because "{error_message}"').format(
error_message=json_error.get("error")
)
)
except Exception as e:
pushWarning("could not generate isochrones")
raise Exception(e)
def prepareIsochronesParameters(self, points, profile, options, intervals,
colors):
travel_constraint = "distance" if options.get('shortest') else "time"
# build contour json
if len(intervals) != len(colors):
pushWarning(
self.
tr("The number of intervals and colors are different, using default color"
))
contours = [{travel_constraint: x} for x in intervals]
else:
contours = []
for i in range(0, len(intervals)):
contours.append({
travel_constraint: intervals[i],
"color": colors[i]
})
params = dict(
costing=profile,
locations=points,
polygons=True,
contours=contours,
costing_options={profile: options},
)
return params
def calculate(self):
try:
(
layer,
points,
profile,
allAreasToAvoidWGS,
costingOptions,
allPatrolAreaWGS,
) = self.prepareValhalla()
except TypeError:
pushWarning(
self.tr("Could not compute patrol: no polygon selected"))
return
try:
layer.updateRoute(points, profile, allAreasToAvoidWGS,
costingOptions, allPatrolAreaWGS)
self.btnNavigate.setEnabled(True)
except Exception as e:
if "Failed to find a route between two locations for Chinese Postman route" in str(
e):
self.show_chinese_postman_warning(str(e))
else:
pushWarning(str(e))
LOG.error(e, exc_info=True)
LOG.error("Could not compute route")
def updateFromPolyline(self, polyline, profile, costingOptions):
try:
response = self.valhalla.mapmatching(polyline, profile,
costingOptions)
self.computeFromResponse(response)
except Exception as e:
LOG.warning(e)
pushWarning(self.tr("Could not compute route from polyline"))
def getCoordFromGPS(self):
connection = getGpsConnection()
if connection:
info = connection.currentGPSInformation()
pointString = "{:.6f},{:.6f}".format(info.longitude, info.latitude)
self.searchBox.setText(pointString)
self.setPoint(QgsPointXY(info.longitude, info.latitude))
# TODO: Perhaps put reverse geocoding here
self.setLocationName(pointString)
else:
pushWarning(self.tr("Cannot connect to GPS"))
def updateFromPins(self):
try:
for i, pin in enumerate(self.pins):
self.points[i] = QgsPointXY(pin.position())
response = self.valhalla.route(self.points, self.profile,
self.costingOptions)
self.computeFromResponse(response)
self.triggerRepaint()
except Exception as e:
logging.error(e, exc_info=True)
# TODO more fine-grained error control
pushWarning(self.tr("Could not compute route"))
logging.error("Could not compute route")
def getTiles(self):
try:
remote_tiles = self.getRemoteTiles()
except Exception as e:
pushWarning("Cannot get tiles from the URL because %s " % str(e))
remote_tiles = []
local_tiles = self.getLocalTiles()
# Merge the tiles
all_tiles = []
all_tiles.extend(remote_tiles)
remote_tile_ids = [remote_tile["id"] for remote_tile in remote_tiles]
for local_tile in local_tiles:
if local_tile["id"] not in remote_tile_ids:
all_tiles.append(local_tile)
return all_tiles
def calculate(self):
try:
(
layer,
points,
profile,
allAreasToAvoidWGS,
costingOptions,
) = self.prepareValhalla()
except TypeError:
# exit if prepareValhalla raised a warning to the user
return
try:
layer.updateRoute(points, profile, allAreasToAvoidWGS, costingOptions)
self.btnNavigate.setEnabled(True)
except Exception as e:
LOG.error(e, exc_info=True)
# TODO more fine-grained error control
pushWarning(self.tr("Could not compute route"))
LOG.error("Could not compute route")
raise (e)
def reprojectToWGS84(self, geom):
geomType = geom.type()
if geomType == QgsWkbTypes.LineGeometry:
geomList = geom.asPolyline()
elif geomType == QgsWkbTypes.PolygonGeometry:
geomList = geom.asPolygon()
newGeom = []
for j in range(len(geomList)):
if geomType == QgsWkbTypes.LineGeometry:
newGeom.append(self.transformer.transform(geomList[j]))
elif geomType == QgsWkbTypes.PolygonGeometry:
line = geomList[j]
for i in range(len(line)):
point = line[i]
newGeom.append(self.transformer.transform(point))
if geomType == QgsWkbTypes.LineGeometry:
return QgsGeometry.fromPolylineXY(newGeom)
elif geomType == QgsWkbTypes.PolygonGeometry:
return QgsGeometry.fromPolygonXY([newGeom])
else:
# TODO, from qgis 3.18 it will be possible to use the method
# QgsWkbTypes.translatedDisplayString() to have much nicer error message
pushWarning(
"not implemented: cannot save layer type: {}".format(geomType))
def calculate(self):
layer = self.layerSelector.getSelectedLayer()
if layer is None:
pushWarning(self.tr("Please, select a valid destination layer"))
return
try:
points = [self.originSearchBox.point]
points.extend(self.waypoints)
points.append(self.destinationSearchBox.point)
except WrongLocationException as e:
pushWarning(self.tr("Invalid location:") + str(e))
return
if None in points:
pushWarning(
self.tr("Both origin and destination points are required"))
return
shortest = self.radioButtonShortest.isChecked()
vehicle = self.comboBoxVehicles.currentIndex()
profile, costingOptions = vehicles.options_for_vehicle(vehicle)
'''
areasToAvoid = None
if self.radioAreasToAvoidPolygon.isChecked():
areasToAvoid = self.areasToAvoid
elif self.radioAreasToAvoidLayer.isChecked():
avoidLayer = self.comboAreasToAvoidLayers.currentData()
if avoidLayer is not None:
geoms = [f.geometry() for f in avoidLayer.getFeatures()]
areasToAvoid = QgsGeometry.collectGeometry(geoms)
# TODO: use areas to avoid
'''
if shortest:
costingOptions["shortest"] = True
try:
layer.updateRoute(points, profile, costingOptions)
self.btnNavigate.setEnabled(True)
except Exception as e:
raise
logging.error(e, exc_info=True)
# TODO more fine-grained error control
pushWarning(self.tr("Could not compute route"))
logging.error("Could not compute route")
def prepareValhalla(self):
(
layer,
points,
profile,
allAreasToAvoidWGS,
costingOptions,
) = super().prepareValhalla()
if self.radioPatrolAreaPolygon.isChecked():
# Currently only single polygon is accepted
patrolArea = self.patrolArea
canvasCrs = self.canvas.mapSettings().destinationCrs()
transformer = transformToWGS(canvasCrs)
if patrolArea is None:
# if the custom polygon button is checked, but no polygon has been drawn
pushWarning(
self.
tr("Custom polygon button is checked, but no polygon is drawn"
))
return
elif self.radioPatrolAreaLayer.isChecked():
patrolLayer = self.comboPatrolAreaLayers.currentData()
if patrolLayer is not None:
layerCrs = patrolLayer.crs()
transformer = transformToWGS(layerCrs)
patrolFeatures = [f for f in patrolLayer.getFeatures()]
if len(patrolFeatures) != 1:
pushWarning(
self.
tr("The polygon layer for Patrol must contain exactly only one polygon."
))
return
else:
patrolArea = patrolFeatures[0].geometry()
else:
# If polygon layer button is checked, but no layer polygon is selected
pushWarning(
self.
tr("Polygon layer button is checked for Patrol, but no layer polygon is selected"
))
return
else:
# No areas to avoid
patrolArea = None
patrolAreaWGS = None
# transform to WGS84 (Valhalla's requirement)
if patrolArea:
patrolAreaJson = json.loads(patrolArea.asJson())
patrolAreaWGS = []
polygon = patrolAreaJson["coordinates"][0]
for point in polygon:
pointWGS = transformer.transform(point[0], point[1])
patrolAreaWGS.append([pointWGS.x(), pointWGS.y()])
return layer, points, profile, allAreasToAvoidWGS, costingOptions, patrolAreaWGS
def buttonClicked(self):
status = self.data["status"]
if status == DataCatalogueClient.UP_TO_DATE:
ret = self.dataCatalogueClient.uninstall(self.data["id"])
if not ret:
pushWarning(
self.
tr("Cannot remove previous version of the {name} map package"
).format(name=self.data["title"]))
else:
pushMessage(
self.tr("Map package {name} has been successfully deleted "
).format(name=self.data["title"]))
self.data["status"] = DataCatalogueClient.NOT_INSTALLED
elif status == DataCatalogueClient.LOCAL_ONLY:
ret = self.dataCatalogueClient.uninstall(self.data["id"])
if not ret:
pushWarning(
self.
tr("Cannot remove previous version of the {name} map package"
).format(name=self.data["title"]))
else:
pushMessage(
self.tr("Map package {name} has been successfully deleted "
).format(name=self.data["title"]))
self.data["status"] = DataCatalogueClient.LOCAL_DELETED
else:
ret = self.dataCatalogueClient.install(self.data)
if not ret:
pushWarning(
self.tr("Cannot install map package {name}").format(
name=self.data["title"]))
else:
pushMessage(
self.tr(
"Map package {name} has been successfully installed ").
format(name=self.data["title"]))
self.data["status"] = DataCatalogueClient.UP_TO_DATE
if ret:
self.updateContent()
def download_canceled(self):
pushWarning(tr("Download is canceled!"))
LOG.debug("Download is canceled")
def func(*args, **kw):
if ValhallaClient.getInstance().isAvailable():
method(*args, **kw)
else:
pushWarning(tr("Valhalla is not installed or it cannot be found"))
def prepareValhalla(self):
layer = self.layerSelector.getSelectedLayer()
if layer is None:
pushWarning(self.tr("Please, select a valid destination layer"))
return
try:
points = [self.originSearchBox.point]
if len(self.waypoints) > 0:
points.extend(self.waypoints)
points.append(self.destinationSearchBox.point)
except WrongLocationException as e:
pushWarning(self.tr("Invalid location:") + str(e))
return
if None in points:
pushWarning(self.tr("Both origin and destination points are required"))
return
try:
shortest = self.radioButtonShortest.isChecked()
except AttributeError:
shortest = False
vehicle = self.comboBoxVehicles.currentIndex()
QgsSettings().setValue(
"/kadasrouting/current_vehicle", self.comboBoxVehicles.currentIndex()
)
profile, costingOptions = vehicles.options_for_vehicle(vehicle)
if self.radioAreasToAvoidPolygon.isChecked():
areasToAvoid = self.areasToAvoid
canvasCrs = self.canvas.mapSettings().destinationCrs()
transformer = transformToWGS(canvasCrs)
if areasToAvoid is None:
# if the custom polygon button is checked, but no polygon has been drawn
pushWarning(
self.tr("Custom polygon button is checked, but no polygon is drawn")
)
return
elif self.radioAreasToAvoidLayer.isChecked():
avoidLayer = self.comboAreasToAvoidLayers.currentData()
if avoidLayer is not None:
layerCrs = avoidLayer.crs()
transformer = transformToWGS(layerCrs)
areasToAvoid = [f.geometry() for f in avoidLayer.getFeatures()]
else:
# If polygon layer button is checked, but no layer polygon is selected
pushWarning(
self.tr(
"Polygon layer button is checked, but no layer polygon is selected"
)
)
return
else:
# No areas to avoid
areasToAvoid = None
areasToAvoidWGS = None
allAreasToAvoidWGS = None
if shortest:
costingOptions["shortest"] = True
# transform to WGS84 (Valhalla's requirement)
allAreasToAvoidWGS = []
if areasToAvoid:
for areasToAvoidGeom in areasToAvoid:
areasToAvoidJson = json.loads(areasToAvoidGeom.asJson())
areasToAvoidWGS = []
for i, polygon in enumerate(areasToAvoidJson["coordinates"]):
areasToAvoidWGS.append([])
for point in polygon:
pointWGS = transformer.transform(point[0], point[1])
areasToAvoidWGS[i].append([pointWGS.x(), pointWGS.y()])
allAreasToAvoidWGS.extend(areasToAvoidWGS)
return layer, points, profile, allAreasToAvoidWGS, costingOptions