diff options
Diffstat (limited to 'src/PJ_eqc.c')
| -rw-r--r-- | src/PJ_eqc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/PJ_eqc.c b/src/PJ_eqc.c new file mode 100644 index 00000000..d956a47b --- /dev/null +++ b/src/PJ_eqc.c @@ -0,0 +1,26 @@ +#ifndef lint +static const char SCCSID[]="@(#)PJ_eqc.c 4.1 94/02/15 GIE REL"; +#endif +#define PROJ_PARMS__ \ + double rc; +#define PJ_LIB__ +# include <projects.h> +PROJ_HEAD(eqc, "Equidistant Cylindrical (Plate Caree)") + "\n\tCyl, Sph\n\tlat_ts="; +FORWARD(s_forward); /* spheroid */ + xy.x = P->rc * lp.lam; + xy.y = lp.phi; + return (xy); +} +INVERSE(s_inverse); /* spheroid */ + lp.phi = xy.y; + lp.lam = xy.x / P->rc; + return (lp); +} +FREEUP; if (P) pj_dalloc(P); } +ENTRY0(eqc) + if ((P->rc = cos(pj_param(P->params, "rlat_ts").f)) <= 0.) E_ERROR(-24); + P->inv = s_inverse; + P->fwd = s_forward; + P->es = 0.; +ENDENTRY(P) |