diff options
Diffstat (limited to 'src/PJ_cc.c')
| -rw-r--r-- | src/PJ_cc.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/PJ_cc.c b/src/PJ_cc.c new file mode 100644 index 00000000..b578c476 --- /dev/null +++ b/src/PJ_cc.c @@ -0,0 +1,22 @@ +#ifndef lint +static const char SCCSID[]="@(#)PJ_cc.c 4.1 94/02/15 GIE REL"; +#endif +#define PROJ_PARMS__ \ + double ap; +#define PJ_LIB__ +#include <projects.h> +PROJ_HEAD(cc, "Central Cylindrical") "\n\tCyl, Sph"; +#define EPS10 1.e-10 +FORWARD(s_forward); /* spheroid */ + if (fabs(fabs(lp.phi) - HALFPI) <= EPS10) F_ERROR; + xy.x = lp.lam; + xy.y = tan(lp.phi); + return (xy); +} +INVERSE(s_inverse); /* spheroid */ + lp.phi = atan(xy.y); + lp.lam = xy.x; + return (lp); +} +FREEUP; if (P) pj_dalloc(P); } +ENTRY0(cc) P->es = 0.; P->inv = s_inverse; P->fwd = s_forward; ENDENTRY(P) |