/usr/include/qgis/qgsbearingutils.h is in libqgis-dev 2.14.11+dfsg-3+deb9u1.
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qgsbearingutils.h
-----------------
begin : October 2016
copyright : (C) 2016 by Nyall Dawson
email : nyall dot dawson at gmail dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSBEARINGUTILS_H
#define QGSBEARINGUTILS_H
class QgsCoordinateReferenceSystem;
class QgsPoint;
/**
* \class QgsBearingUtils
* \ingroup core
* Utilities for calculating bearings and directions.
* \note Added in version 2.18
*/
class CORE_EXPORT QgsBearingUtils
{
public:
/**
* Returns the direction to true north from a specified point and for a specified
* coordinate reference system. The returned value is in degrees clockwise from
* vertical. An exception will be thrown if the bearing could not be calculated.
*/
static double bearingTrueNorth( const QgsCoordinateReferenceSystem& crs,
const QgsPoint& point );
};
#endif //QGSBEARINGUTILS_H
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