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make cost() method pure virtual

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This commit is contained in:
Alexander Bruy 2016-11-19 14:58:04 +02:00
parent 00eb2619c6
commit f9be17997f
2 changed files with 2 additions and 7 deletions
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2
python/analysis/network/qgsstrategy.sip
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@ -46,5 +46,5 @@ class QgsStrategy
/**
* Return edge cost
*/
virtual QVariant cost( double distance, const QgsFeature &f ) const;
virtual QVariant cost( double distance, const QgsFeature &f ) const = 0;
};

7
src/analysis/network/qgsstrategy.h
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@ -51,12 +51,7 @@ class ANALYSIS_EXPORT QgsStrategy
/**
* Return edge cost
*/
virtual QVariant cost( double distance, const QgsFeature &f ) const
{
Q_UNUSED( distance );
Q_UNUSED( f );
return QVariant();
}
virtual QVariant cost( double distance, const QgsFeature &f ) const = 0;
};
#endif // QGSSTRATERGY_H