diff options
Diffstat (limited to 'src/3rdparty/proj/PJ_putp2.c')
| -rw-r--r-- | src/3rdparty/proj/PJ_putp2.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/src/3rdparty/proj/PJ_putp2.c b/src/3rdparty/proj/PJ_putp2.c deleted file mode 100644 index e846f13b..00000000 --- a/src/3rdparty/proj/PJ_putp2.c +++ /dev/null @@ -1,40 +0,0 @@ -#define PJ_LIB__ -#include <projects.h> -PROJ_HEAD(putp2, "Putnins P2") "\n\tPCyl., Sph."; -#define C_x 1.89490 -#define C_y 1.71848 -#define C_p 0.6141848493043784 -#define EPS 1e-10 -#define NITER 10 -#define PI_DIV_3 1.0471975511965977 -FORWARD(s_forward); /* spheroid */ - double p, c, s, V; - int i; - - p = C_p * sin(lp.phi); - s = lp.phi * lp.phi; - lp.phi *= 0.615709 + s * ( 0.00909953 + s * 0.0046292 ); - for (i = NITER; i ; --i) { - c = cos(lp.phi); - s = sin(lp.phi); - lp.phi -= V = (lp.phi + s * (c - 1.) - p) / - (1. + c * (c - 1.) - s * s); - if (fabs(V) < EPS) - break; - } - if (!i) - lp.phi = lp.phi < 0 ? - PI_DIV_3 : PI_DIV_3; - xy.x = C_x * lp.lam * (cos(lp.phi) - 0.5); - xy.y = C_y * sin(lp.phi); - return (xy); -} -INVERSE(s_inverse); /* spheroid */ - double c; - - lp.phi = aasin(xy.y / C_y); - lp.lam = xy.x / (C_x * ((c = cos(lp.phi)) - 0.5)); - lp.phi = aasin((lp.phi + sin(lp.phi) * (c - 1.)) / C_p); - return (lp); -} -FREEUP; if (P) pj_dalloc(P); } -ENTRY0(putp2) P->es = 0.; P->inv = s_inverse; P->fwd = s_forward; ENDENTRY(P) |