QGIS API Documentation
3.16.0-Hannover (43b64b13f3)
src
analysis
network
qgsnetworkspeedstrategy.h
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/***************************************************************************
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qgsnetworkspeedstrategy.h
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--------------------------------------
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Date : 2011-04-01
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Copyright : (C) 2010 by Yakushev Sergey
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Email : YakushevS <at> list.ru
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****************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSNETWORKSPEEDSTRATEGY_H
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#define QGSNETWORKSPEEDSTRATEGY_H
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#include "
qgsnetworkstrategy.h
"
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#include "qgis_analysis.h"
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class
ANALYSIS_EXPORT
QgsNetworkSpeedStrategy
:
public
QgsNetworkStrategy
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{
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public
:
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QgsNetworkSpeedStrategy
(
int
attributeId,
double
defaultValue,
double
toMetricFactor );
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QVariant
cost
(
double
distance,
const
QgsFeature
&f )
const override
;
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QSet< int >
requiredAttributes
()
const override
;
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private
:
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int
mAttributeId;
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double
mDefaultValue;
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double
mToMetricFactor;
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};
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#endif // QGSNETWORKSPEEDSTRATEGY_H
QgsNetworkSpeedStrategy
Strategy for calculating edge cost based on travel time.
Definition:
qgsnetworkspeedstrategy.h:30
QgsNetworkStrategy::cost
virtual QVariant cost(double distance, const QgsFeature &f) const =0
Returns edge cost.
qgsnetworkstrategy.h
QgsFeature
The feature class encapsulates a single feature including its id, geometry and a list of field/values...
Definition:
qgsfeature.h:56
QgsNetworkStrategy::requiredAttributes
virtual QSet< int > requiredAttributes() const
Returns a list of the source layer attributes needed for cost calculation.
Definition:
qgsnetworkstrategy.h:69
QgsNetworkStrategy
QgsNetworkStrategy defines strategy used for calculation of the edge cost.
Definition:
qgsnetworkstrategy.h:43
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