blob: 3eeb33260e51e585b2af418188d2eef40e2f1cde (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
#define PJ_LIB__
# include <projects.h>
PROJ_HEAD(eck5, "Eckert V") "\n\tPCyl, Sph.";
#define XF 0.44101277172455148219
#define RXF 2.26750802723822639137
#define YF 0.88202554344910296438
#define RYF 1.13375401361911319568
FORWARD(s_forward); /* spheroid */
xy.x = XF * (1. + cos(lp.phi)) * lp.lam;
xy.y = YF * lp.phi;
return (xy);
}
INVERSE(s_inverse); /* spheroid */
lp.lam = RXF * xy.x / (1. + cos( lp.phi = RYF * xy.y));
return (lp);
}
FREEUP; if (P) pj_dalloc(P); }
ENTRY0(eck5); P->es = 0.; P->inv = s_inverse; P->fwd = s_forward; ENDENTRY(P)
|
