Class: QgsNetworkStrategy¶
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class
qgis.analysis.
QgsNetworkStrategy
¶ Bases:
sip.wrapper
Default constructor
QgsNetworkStrategy(QgsNetworkStrategy)
QgsNetworkStrategy defines strategy used for calculation of the edge cost. For example it can take into account travel distance, amount of time or money. Currently there are two strategies implemented in the analysis library: QgsNetworkDistanceStrategy and QgsNetworkSpeedStrategy. QgsNetworkStrategy implemented using “strategy” design pattern.
New in version 3.0: Enums
Methods
Returns edge cost
Returns a list of the source layer attributes needed for cost calculation.
Signals
Attributes
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cost
(self, distance: float, f: QgsFeature) → Any¶ Returns edge cost
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requiredAttributes
(self) → object¶ Returns a list of the source layer attributes needed for cost calculation. This is method called by
QgsGraphDirector
.
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