/Proj4/geodesic.h

http://github.com/route-me/route-me · C Header · 51 lines · 43 code · 8 blank · 0 comment · 0 complexity · ff31e01ccc33f5c3754ef507fe0514cb MD5 · raw file 

    

  1. #ifndef lint
    2. 

  2. static char GEODESIC_H_ID[] = "@(#)geodesic.h	4.3	95/08/19	GIE	REL";
    3. 

  3. #endif
    4. 

  4. 

  5. #ifdef __cplusplus
    6. 

  6. extern "C" {
    7. 

  7. #endif
    8. 

  8. 

  9. #ifndef _IN_GEOD_SET
    10. 

  10. #  define GEOD_EXTERN extern
    11. 

  11. #else
    12. 

  12. #  define GEOD_EXTERN
    13. 

  13. #endif
    14. 

  14. 

  15. GEOD_EXTERN struct geodesic {
    16. 

  16. 	double	A;
    17. 

  17. 	double	LAM1, PHI1, ALPHA12;
    18. 

  18. 	double	LAM2, PHI2, ALPHA21;
    19. 

  19. 	double	DIST;
    20. 

  20. 	double	ONEF, FLAT, FLAT2, FLAT4, FLAT64;
    21. 

  21. 	int	ELLIPSE;
    22. 

  22. } GEODESIC;
    23. 

  23. 

  24. # define geod_a	GEODESIC.A
    25. 

  25. # define lam1	GEODESIC.LAM1
    26. 

  26. # define phi1	GEODESIC.PHI1
    27. 

  27. # define al12	GEODESIC.ALPHA12
    28. 

  28. # define lam2	GEODESIC.LAM2
    29. 

  29. # define phi2	GEODESIC.PHI2
    30. 

  30. # define al21	GEODESIC.ALPHA21
    31. 

  31. # define geod_S	GEODESIC.DIST
    32. 

  32. # define geod_f	GEODESIC.FLAT
    33. 

  33. # define onef	GEODESIC.ONEF
    34. 

  34. # define f2	GEODESIC.FLAT2
    35. 

  35. # define f4	GEODESIC.FLAT4
    36. 

  36. # define ff2	GEODESIC.FLAT4
    37. 

  37. # define f64	GEODESIC.FLAT64
    38. 

  38. # define ellipse GEODESIC.ELLIPSE
    39. 

  39. 

  40.     
    41. 

  41. GEOD_EXTERN int n_alpha, n_S;
    42. 

  42. GEOD_EXTERN double to_meter, fr_meter, del_alpha;
    43. 

  43. 	
    44. 

  44. void geod_set(int, char **);
    45. 

  45. void geod_for(void);
    46. 

  46. void geod_pre(void);
    47. 

  47. void geod_inv(void);
    48. 

  48. 

  49. #ifdef __cplusplus
    50. 

  50. }
    51. 

  51. #endif
    52.