Remove some unrequired iface usage from processing algs

Flip to context.project().crs() use instead

python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py

@@ -53,7 +53,6 @@
                            QgsGraphBuilder,
                            QgsGraphAnalyzer
                            )
-from qgis.utils import iface
 
 from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
 
@@ -199,7 +198,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                           bothValue,
                                           defaultDirection)
 
-        distUnit = iface.mapCanvas().mapSettings().destinationCrs().mapUnits()
+        distUnit = context.project().crs().mapUnits()
         multiplier = QgsUnitTypes.fromUnitToUnitFactor(distUnit, QgsUnitTypes.DistanceMeters)
         if strategy == 0:
             strategy = QgsNetworkDistanceStrategy()
@@ -209,7 +208,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                                multiplier * 1000.0 / 3600.0)
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(iface.mapCanvas().mapSettings().destinationCrs(),
+        builder = QgsGraphBuilder(context.project().crs(),
                                   True,
                                   tolerance)
 

python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py

@@ -53,7 +53,6 @@
                            QgsGraphBuilder,
                            QgsGraphAnalyzer
                            )
-from qgis.utils import iface
 
 from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
 
@@ -191,7 +190,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                           bothValue,
                                           defaultDirection)
 
-        distUnit = iface.mapCanvas().mapSettings().destinationCrs().mapUnits()
+        distUnit = context.project().crs().mapUnits()
         multiplier = QgsUnitTypes.fromUnitToUnitFactor(distUnit, QgsUnitTypes.DistanceMeters)
         if strategy == 0:
             strategy = QgsNetworkDistanceStrategy()
@@ -201,7 +200,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                                multiplier * 1000.0 / 3600.0)
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(iface.mapCanvas().mapSettings().destinationCrs(),
+        builder = QgsGraphBuilder(context.project().crs(),
                                   True,
                                   tolerance)
         feedback.pushInfo(self.tr('Building graph...'))

python/plugins/processing/algs/qgis/SetRasterStyle.py

@@ -36,7 +36,6 @@
 from processing.core.parameters import ParameterRaster
 from processing.core.outputs import OutputRaster
 from processing.tools import dataobjects
-from qgis.utils import iface
 
 
 class SetRasterStyle(QgisAlgorithm):

python/plugins/processing/algs/qgis/SetVectorStyle.py

@@ -33,7 +33,6 @@
 from processing.core.outputs import OutputVector
 from processing.core.parameters import ParameterFile
 from processing.tools import dataobjects
-from qgis.utils import iface
 
 
 class SetVectorStyle(QgisAlgorithm):

python/plugins/processing/algs/qgis/ShortestPathLayerToPoint.py

@@ -54,7 +54,6 @@
                            QgsGraphBuilder,
                            QgsGraphAnalyzer
                            )
-from qgis.utils import iface
 
 from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
 
@@ -196,7 +195,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                           bothValue,
                                           defaultDirection)
 
-        distUnit = iface.mapCanvas().mapSettings().destinationCrs().mapUnits()
+        distUnit = context.project().crs().mapUnits()
         multiplier = QgsUnitTypes.fromUnitToUnitFactor(distUnit, QgsUnitTypes.DistanceMeters)
         if strategy == 0:
             strategy = QgsNetworkDistanceStrategy()
@@ -207,7 +206,7 @@ def processAlgorithm(self, parameters, context, feedback):
             multiplier = 3600
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(iface.mapCanvas().mapSettings().destinationCrs(),
+        builder = QgsGraphBuilder(context.project().crs(),
                                   True,
                                   tolerance)
 

python/plugins/processing/algs/qgis/ShortestPathPointToLayer.py

@@ -54,7 +54,6 @@
                            QgsGraphBuilder,
                            QgsGraphAnalyzer
                            )
-from qgis.utils import iface
 
 from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
 
@@ -196,7 +195,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                           bothValue,
                                           defaultDirection)
 
-        distUnit = iface.mapCanvas().mapSettings().destinationCrs().mapUnits()
+        distUnit = context.project().crs().mapUnits()
         multiplier = QgsUnitTypes.fromUnitToUnitFactor(distUnit, QgsUnitTypes.DistanceMeters)
         if strategy == 0:
             strategy = QgsNetworkDistanceStrategy()
@@ -207,7 +206,7 @@ def processAlgorithm(self, parameters, context, feedback):
             multiplier = 3600
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(iface.mapCanvas().mapSettings().destinationCrs(),
+        builder = QgsGraphBuilder(context.project().crs(),
                                   True,
                                   tolerance)
 

python/plugins/processing/algs/qgis/ShortestPathPointToPoint.py

@@ -55,7 +55,6 @@
                            QgsGraphBuilder,
                            QgsGraphAnalyzer
                            )
-from qgis.utils import iface
 
 from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
 
@@ -196,7 +195,7 @@ def processAlgorithm(self, parameters, context, feedback):
                                           bothValue,
                                           defaultDirection)
 
-        distUnit = iface.mapCanvas().mapSettings().destinationCrs().mapUnits()
+        distUnit = context.project().crs().mapUnits()
         multiplier = QgsUnitTypes.fromUnitToUnitFactor(distUnit, QgsUnitTypes.DistanceMeters)
         if strategy == 0:
             strategy = QgsNetworkDistanceStrategy()
@@ -207,7 +206,7 @@ def processAlgorithm(self, parameters, context, feedback):
             multiplier = 3600
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(iface.mapCanvas().mapSettings().destinationCrs(),
+        builder = QgsGraphBuilder(context.project().crs(),
                                   True,
                                   tolerance)
         feedback.pushInfo(self.tr('Building graph...'))