navigati.h

来自「eC++编译器源码」· C头文件 代码 · 共 35 行

#pragma Navigation
  typedef enum {North, South, East, West} Compass;

  double Radius(double new /*in NMI*/); /*old*/
  void GreatCircle(double latitude, double longitude, double lat2, double long2, /*all in radians*/
      double &distance /*NMI*/, double &course /*radians*/);
  void RhumbLine(double latitude, double longitude, double lat2, double long2, /*all in radians*/
      double &distance /*NMI*/, double &course /*radians*/);
  void WhereTo(double originLat, double originLong, double course, double distance,
      double &latitude, double &longitude /*destination*/);
  double CircleErr(double latitude, double longitude, double lat2, double long2, double errLat, /*all in radians*/
      double errLong); /*NMI, right positive*/
  double LineErr(double latitude, double longitude, double lat2, double long2, double errLat, /*all in radians*/
      double errLong); /*NMI, right positive*/
  void LatToDeg(double latitude, /*in radians*/
      double &degrees, double &minutes, double &seconds, Compass &c);
  void LongToDeg(double longitude, /*in radians*/
      double &degrees, double &minutes, double &seconds, Compass &c);
  double LatToRad(double degrees, double minutes, double seconds, Compass c);/*radians*/
  double LongToRad(double degrees, double minutes, double seconds, Compass c);
 /*    If type = LAT
  *       The entire value must be in the range: [-90, 90].
  *       The degrees field must be in the range [0, 90].
  *    If type = LON
  *       The entire value must be in the range: [-180, 180].
  *       The degrees field must be in the range [0, 180].
  *
  *    If there is a minutes field, it must be in the range [0, 60).
  *    If there is a seconds field, it must be in the range [0, 60).
 */
  void Output(double latLong, /*in radians*/ boolean latitude,
      char format[], char &output[], unsigned int position, unsigned int width);
  double Input(Compass &c, char format[], char &output[],
      unsigned int &position);