/usr/include/qgis/qgscoordinateutils.h is in libqgis-dev 2.18.17+dfsg-1.
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qgscoordinateutils.h
--------------------
begin : February 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 QGSCOORDINATEUTILS_H
#define QGSCOORDINATEUTILS_H
#include "qgscoordinatereferencesystem.h"
#include "qgspoint.h"
//not stable api - I plan on reworking this when QgsCoordinateFormatter lands in 2.16
///@cond NOT_STABLE_API
/** \ingroup core
* \class QgsCoordinateUtils
* \brief Utilities for handling and formatting coordinates
* \note added in QGIS 2.14
*/
class CORE_EXPORT QgsCoordinateUtils
{
public:
/** Returns the precision to use for displaying coordinates to the user, respecting
* the user's project settings. If the user has set the project to use "automatic"
* precision, this function tries to calculate an optimal coordinate precision for a given
* map units per pixel by calculating the number of decimal places for the coordinates
* with the aim of always having enough decimal places to show the difference in position
* between adjacent pixels.
* @param mapUnitsPerPixel number of map units per pixel
* @param mapCrs CRS of map
* @returns optimal number of decimal places for coordinates
*/
static int calculateCoordinatePrecision( double mapUnitsPerPixel, const QgsCoordinateReferenceSystem& mapCrs );
static QString formatCoordinateForProject( const QgsPoint& point, const QgsCoordinateReferenceSystem& destCrs, int precision );
};
///@endcond
#endif //QGSCOORDINATEUTILS_H
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