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-rw-r--r--src/PJ_fahey.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_fahey.c b/src/PJ_fahey.c
index 93e9b38d..007fc906 100644
--- a/src/PJ_fahey.c
+++ b/src/PJ_fahey.c
@@ -3,11 +3,13 @@
PROJ_HEAD(fahey, "Fahey") "\n\tPcyl, Sph.";
#define TOL 1e-6
FORWARD(s_forward); /* spheroid */
+ (void) P;
xy.y = 1.819152 * ( xy.x = tan(0.5 * lp.phi) );
xy.x = 0.819152 * lp.lam * asqrt(1 - xy.x * xy.x);
return (xy);
}
INVERSE(s_inverse); /* spheroid */
+ (void) P;
lp.phi = 2. * atan(xy.y /= 1.819152);
lp.lam = fabs(xy.y = 1. - xy.y * xy.y) < TOL ? 0. :
xy.x / (0.819152 * sqrt(xy.y));