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GPXSee/src/data/dem.h

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#ifndef DEM_H
#define DEM_H
#include <QString>
#include <QCache>
#include <QByteArray>
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#include "common/config.h"
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#include "area.h"
class QString;
class Coordinates;
class RectC;
class DEM
{
public:
class Tile {
public:
Tile(int lon, int lat) : _lon(lon), _lat(lat) {}
int lon() const {return _lon;}
int lat() const {return _lat;}
QString lonStr() const;
QString latStr() const;
QString baseName() const;
bool operator==(const Tile &other) const
{
return (_lon == other._lon && _lat == other._lat);
}
private:
int _lon, _lat;
};
static void setDir(const QString &path);
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static void clearCache();
static qreal elevation(const Coordinates &c);
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static QList<Area> tiles();
private:
static QString fileName(const QString &baseName);
static QString _dir;
static QCache<Tile, QByteArray> _data;
};
inline HASH_T qHash(const DEM::Tile &tile)
{
return (qHash(tile.lon()) ^ qHash(tile.lat()));
}
#ifndef QT_NO_DEBUG
QDebug operator<<(QDebug dbg, const DEM::Tile &tile);
#endif // QT_NO_DEBUG
#endif // DEM_H