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47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#ifndef ELLIPSOID_H
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#define ELLIPSOID_H
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#include <cmath>
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#include <QString>
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#include <QMap>
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#include <QDebug>
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class Ellipsoid
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{
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public:
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Ellipsoid() : _radius(NAN), _flattening(NAN), _es(NAN), _b(NAN) {}
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Ellipsoid(double radius, double flattening);
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double radius() const {return _radius;}
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double flattening() const {return _flattening;}
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double es() const {return _es;}
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double e2s() const {return _e2s;}
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double b() const {return _b;}
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bool isNull() const
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{return (std::isnan(_radius) && std::isnan(_flattening));}
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bool isValid() const
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{return !(std::isnan(_radius) || std::isnan(_flattening));}
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static const Ellipsoid &WGS84();
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static const Ellipsoid &ellipsoid(int id);
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static void loadList(const QString &path);
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private:
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double _radius;
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double _flattening;
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double _es, _e2s, _b;
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static QMap<int, Ellipsoid> defaults();
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static QMap<int, Ellipsoid> _ellipsoids;
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};
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inline bool operator==(const Ellipsoid &e1, const Ellipsoid &e2)
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{return (e1.radius() == e2.radius() && e1.flattening() == e2.flattening());}
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#ifndef QT_NO_DEBUG
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QDebug operator<<(QDebug dbg, const Ellipsoid &ellipsoid);
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#endif // QT_NO_DEBUG
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#endif // ELLIPSOID_H
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