QGIS API Documentation  3.21.0-Master (564c892cfd)
qgsellipsoidutils.h
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1 /***************************************************************************
2  qgsellipsoidutils.h
3  --------------------
4  Date : April 2017
5  Copyright : (C) 2017 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #ifndef QGSELLIPSOIDUTILS_H
17 #define QGSELLIPSOIDUTILS_H
18 
19 #include "qgis_core.h"
20 #include "qgis_sip.h"
22 #include <QStringList>
23 
24 class QgsCelestialBody;
25 
33 class CORE_EXPORT QgsEllipsoidUtils
34 {
35  public:
36 
42  {
44  bool valid{ true };
45 
47  double semiMajor{ -1.0 };
49  double semiMinor{ -1.0 };
50 
52  bool useCustomParameters{ false };
53 
55  double inverseFlattening{ -1.0 };
56 
59 
60  };
61 
67  {
69  QString acronym;
71  QString description;
74 
83  };
84 
89  static EllipsoidParameters ellipsoidParameters( const QString &ellipsoid );
90 
96  static QList< QgsEllipsoidUtils::EllipsoidDefinition > definitions();
97 
103  static QStringList acronyms();
104 
116  static QList< QgsCelestialBody > celestialBodies();
117 
118 #ifndef SIP_RUN
119 
128  static void invalidateCache( bool disableCache = false );
129 #endif
130 };
131 
132 #endif // QGSELLIPSOIDUTILS_H
133 
Contains information about a celestial body.
This class represents a coordinate reference system (CRS).
Contains utility functions for working with ellipsoids and querying the ellipsoid database.
Contains definition of an ellipsoid.
QString acronym
authority:code for QGIS builds with proj version 6 or greater, or custom acronym for ellipsoid for ea...
QString celestialBodyName
Name of the associated celestial body (e.g.
QString description
Description of ellipsoid.
QgsEllipsoidUtils::EllipsoidParameters parameters
Ellipsoid parameters.
Contains parameters for an ellipsoid.
QgsCoordinateReferenceSystem crs
Associated coordinate reference system.