From 565a4bd035b9d4a83955808efef20f1d8dfa24cf Mon Sep 17 00:00:00 2001 From: Frank Warmerdam Date: Thu, 18 Mar 1999 16:34:52 +0000 Subject: New git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@776 4e78687f-474d-0410-85f9-8d5e500ac6b2 --- src/PJ_mill.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 src/PJ_mill.c (limited to 'src/PJ_mill.c') diff --git a/src/PJ_mill.c b/src/PJ_mill.c new file mode 100644 index 00000000..a9e40a74 --- /dev/null +++ b/src/PJ_mill.c @@ -0,0 +1,18 @@ +#ifndef lint +static const char SCCSID[]="@(#)PJ_mill.c 4.1 94/02/15 GIE REL"; +#endif +#define PJ_LIB__ +# include +PROJ_HEAD(mill, "Miller Cylindrical") "\n\tCyl, Sph"; +FORWARD(s_forward); /* spheroid */ + xy.x = lp.lam; + xy.y = log(tan(FORTPI + lp.phi * .4)) * 1.25; + return (xy); +} +INVERSE(s_inverse); /* spheroid */ + lp.lam = xy.x; + lp.phi = 2.5 * (atan(exp(.8 * xy.y)) - FORTPI); + return (lp); +} +FREEUP; if (P) pj_dalloc(P); } +ENTRY0(mill) P->es = 0.; P->inv = s_inverse; P->fwd = s_forward; ENDENTRY(P) -- cgit v1.2.3