From df574ae332d57f556fd56314883b3354cab1d0ff Mon Sep 17 00:00:00 2001 From: Even Rouault Date: Wed, 19 Dec 2018 13:00:37 +0100 Subject: cpp conversion: remove useless pj_, PJ_ and proj_ filename prefixes --- src/projections/denoy.cpp | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/projections/denoy.cpp (limited to 'src/projections/denoy.cpp') diff --git a/src/projections/denoy.cpp b/src/projections/denoy.cpp new file mode 100644 index 00000000..5c337c45 --- /dev/null +++ b/src/projections/denoy.cpp @@ -0,0 +1,32 @@ +#define PJ_LIB__ +#include + +#include "projects.h" + +PROJ_HEAD(denoy, "Denoyer Semi-Elliptical") "\n\tPCyl, no inv, Sph"; + +#define C0 0.95 +#define C1 -0.08333333333333333333 +#define C3 0.00166666666666666666 +#define D1 0.9 +#define D5 0.03 + + +static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */ + XY xy = {0.0, 0.0}; + (void) P; + xy.y = lp.phi; + xy.x = lp.lam; + lp.lam = fabs(lp.lam); + xy.x *= cos((C0 + lp.lam * (C1 + lp.lam * lp.lam * C3)) * + (lp.phi * (D1 + D5 * lp.phi * lp.phi * lp.phi * lp.phi))); + return xy; +} + + +PJ *PROJECTION(denoy) { + P->es = 0.0; + P->fwd = s_forward; + + return P; +} -- cgit v1.2.3