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| author | Even Rouault <even.rouault@spatialys.com> | 2018-12-18 20:24:11 +0100 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2018-12-26 10:08:53 +0100 |
| commit | 610957f7035242f15743c399ffd429b92bc36206 (patch) | |
| tree | 73f0d51147e2f4860c4bfc875f7a4bf9359386d4 /src/PJ_putp2.c | |
| parent | 355d681ed88019e97742344bd642c2fd97e700a1 (diff) | |
| download | PROJ-610957f7035242f15743c399ffd429b92bc36206.tar.gz PROJ-610957f7035242f15743c399ffd429b92bc36206.zip | |
cpp conversion: minimal steps to fix compilation errors, not warnings
Diffstat (limited to 'src/PJ_putp2.c')
| -rw-r--r-- | src/PJ_putp2.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/src/PJ_putp2.c b/src/PJ_putp2.c deleted file mode 100644 index d7a847c8..00000000 --- a/src/PJ_putp2.c +++ /dev/null @@ -1,61 +0,0 @@ -#define PJ_LIB__ - -#include <math.h> - -#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 - - -static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */ - XY xy = {0.0,0.0}; - double p, c, s, V; - int i; - (void) P; - - 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; -} - - -static LP s_inverse (XY xy, PJ *P) { /* Spheroidal, inverse */ - LP lp = {0.0,0.0}; - double c; - - lp.phi = aasin(P->ctx,xy.y / C_y); - lp.lam = xy.x / (C_x * ((c = cos(lp.phi)) - 0.5)); - lp.phi = aasin(P->ctx,(lp.phi + sin(lp.phi) * (c - 1.)) / C_p); - - return lp; -} - - -PJ *PROJECTION(putp2) { - P->es = 0.; - P->inv = s_inverse; - P->fwd = s_forward; - - return P; -} |
