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#define PROJ_PARMS__ \
double A, B;
#define PJ_LIB__
# include <projects.h>
PROJ_HEAD(putp5, "Putnins P5") "\n\tPCyl., Sph.";
PROJ_HEAD(putp5p, "Putnins P5'") "\n\tPCyl., Sph.";
#define C 1.01346
#define D 1.2158542
FORWARD(s_forward); /* spheroid */
xy.x = C * lp.lam * (P->A - P->B * sqrt(1. + D * lp.phi * lp.phi));
xy.y = C * lp.phi;
return (xy);
}
INVERSE(s_inverse); /* spheroid */
lp.phi = xy.y / C;
lp.lam = xy.x / (C * (P->A - P->B * sqrt(1. + D * lp.phi * lp.phi)));
return (lp);
}
FREEUP; if (P) pj_dalloc(P); }
static PJ *
setup(PJ *P) {
P->es = 0.; P->inv = s_inverse; P->fwd = s_forward;
return P;
}
ENTRY0(putp5) P->A = 2.; P->B = 1.; ENDENTRY(setup(P))
ENTRY0(putp5p) P->A = 1.5; P->B = 0.5; ENDENTRY(setup(P))
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