aboutsummaryrefslogtreecommitdiff
path: root/src/PJ_putp2.c
diff options
context:
space:
mode:
authorEven Rouault <even.rouault@spatialys.com>2018-12-18 20:24:11 +0100
committerEven Rouault <even.rouault@spatialys.com>2018-12-26 10:08:53 +0100
commit610957f7035242f15743c399ffd429b92bc36206 (patch)
tree73f0d51147e2f4860c4bfc875f7a4bf9359386d4 /src/PJ_putp2.c
parent355d681ed88019e97742344bd642c2fd97e700a1 (diff)
downloadPROJ-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.c61
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;
-}