diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/PJ_merc.c | 17 | ||||
| -rw-r--r-- | src/pj_list.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/src/PJ_merc.c b/src/PJ_merc.c index 18303c45..a3e5e846 100644 --- a/src/PJ_merc.c +++ b/src/PJ_merc.c @@ -1,8 +1,10 @@ #define PJ_LIB__ +#include "proj_internal.h" #include "proj.h" #include "projects.h" PROJ_HEAD(merc, "Mercator") "\n\tCyl, Sph&Ell\n\tlat_ts="; +PROJ_HEAD(webmerc, "Web Mercator / Pseudo Mercator") "\n\tCyl, Sph\n\t"; #define EPS10 1.e-10 @@ -76,3 +78,18 @@ PJ *PROJECTION(merc) { return P; } +PJ *PROJECTION(webmerc) { + + /* Overriding k_0, lat_0 and lon_0 with fixed parameters */ + P->k0 = 1.0; + P->phi0 = 0.0; + P->lam0 = 0.0; + + P->b = P->a; + /* Clean up the ellipsoidal parameters to reflect the sphere */ + P->es = P->e = P->f = 0; + pj_calc_ellipsoid_params (P, P->a, 0); + P->inv = s_inverse; + P->fwd = s_forward; + return P; +} diff --git a/src/pj_list.h b/src/pj_list.h index 09a66034..440f7972 100644 --- a/src/pj_list.h +++ b/src/pj_list.h @@ -156,6 +156,7 @@ PROJ_HEAD(wag4, "Wagner IV") PROJ_HEAD(wag5, "Wagner V") PROJ_HEAD(wag6, "Wagner VI") PROJ_HEAD(wag7, "Wagner VII") +PROJ_HEAD(webmerc, "Web Mercator / Pseudo Mercator") PROJ_HEAD(weren, "Werenskiold I") PROJ_HEAD(wink1, "Winkel I") PROJ_HEAD(wink2, "Winkel II") |