[Proj] Import Proj native library in C#

[support.mn at elisanet.fi]

Hello,

there is a manual about how to link proj.4 to your C
project. It is with the other pdf manuals and it tells
you how to do it.

Regards: Janne.

-----------------------------------------

zagot [maurelio at live.it] kirjoitti: 
> Someone can help me to define this C struct in C#?
> 
> #if !defined(PROJECTS_H)
>     typedef struct { double u, v; } projUV;
>     typedef void *projPJ;
>     #define projXY projUV
>     #define projLP projUV
> #else
>     typedef PJ *projPJ;
> #   define projXY   XY
> #   define projLP       LP
> #endif
> 
> typedef struct PJconsts {
>     XY  (*fwd)(LP, struct PJconsts *);
>     LP  (*inv)(XY, struct PJconsts *);
>     void (*spc)(LP, struct PJconsts *, struct FACTORS *);
>     void (*pfree)(struct PJconsts *);
>     const char *descr;
>     paralist *params;   /* parameter list */
>     int over;   /* over-range flag */
>     int geoc;   /* geocentric latitude flag */
>         int is_latlong; /* proj=latlong ... not really a projection at all
> */
>         int is_geocent; /* proj=geocent ... not really a projection at all
> */
>     double
>         a,  /* major axis or radius if es==0 */
>                 a_orig, /* major axis before any +proj related adjustment */
>         es, /* e ^ 2 */
>                 es_orig, /* es before any +proj related adjustment */
>         e,  /* eccentricity */
>         ra, /* 1/A */
>         one_es, /* 1 - e^2 */
>         rone_es, /* 1/one_es */
>         lam0, phi0, /* central longitude, latitude */
>         x0, y0, /* easting and northing */
>         k0, /* general scaling factor */
>         to_meter, fr_meter; /* cartesian scaling */
> 
>         int     datum_type; /* PJD_UNKNOWN/3PARAM/7PARAM/GRIDSHIFT/WGS84 */
>         double  datum_params[7];
>         double  from_greenwich; /* prime meridian offset (in radians) */
>         double  long_wrap_center; /* 0.0 for -180 to 180, actually in
> radians*/
> 
> } PJ;
> 
> Thanks in advance, G.
> 
> 
> --
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