public DoubleValuesSource makeDistanceValueSource(Point queryPoint) {return makeDistanceValueSource(queryPoint, 1.0);}

public DoubleValuesSource makeDistanceValueSource ( Point queryPoint ) { return makeDistanceValueSource ( queryPoint , 1.0 ) ; }
public virtual ValueSource MakeDistanceValueSource(IPoint queryPoint){return MakeDistanceValueSource(queryPoint, 1.0);}
