diff options
| author | Frank Warmerdam <warmerdam@pobox.com> | 1999-03-18 16:34:52 +0000 |
|---|---|---|
| committer | Frank Warmerdam <warmerdam@pobox.com> | 1999-03-18 16:34:52 +0000 |
| commit | 565a4bd035b9d4a83955808efef20f1d8dfa24cf (patch) | |
| tree | 75785fc897708023f1ccdaf40079afcbaaf0fd3a /src/PJ_urm5.c | |
| download | PROJ-565a4bd035b9d4a83955808efef20f1d8dfa24cf.tar.gz PROJ-565a4bd035b9d4a83955808efef20f1d8dfa24cf.zip | |
New
git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@776 4e78687f-474d-0410-85f9-8d5e500ac6b2
Diffstat (limited to 'src/PJ_urm5.c')
| -rw-r--r-- | src/PJ_urm5.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/PJ_urm5.c b/src/PJ_urm5.c new file mode 100644 index 00000000..32cf29bf --- /dev/null +++ b/src/PJ_urm5.c @@ -0,0 +1,31 @@ +#ifndef lint +static const char SCCSID[]="@(#)PJ_urm5.c 4.1 94/02/15 GIE REL"; +#endif +#define PROJ_PARMS__ \ + double m, rmn, q3, n; +#define PJ_LIB__ +# include <projects.h> +PROJ_HEAD(urm5, "Urmaev V") "\n\tPCyl., Sph.\n\tn= q= alphi="; +FORWARD(s_forward); /* spheroid */ + double t; + + t = lp.phi = aasin(P->n * sin(lp.phi)); + xy.x = P->m * lp.lam * cos(lp.phi); + t *= t; + xy.y = lp.phi * (1. + t * P->q3) * P->rmn; + return xy; +} +FREEUP; if (P) pj_dalloc(P); } +ENTRY0(urm5) + double alpha, t; + + P->n = pj_param(P->params, "dn").f; + P->q3 = pj_param(P->params, "dq").f / 3.; + alpha = pj_param(P->params, "ralpha").f; + t = P->n * sin(alpha); + P->m = cos(alpha) / sqrt(1. - t * t); + P->rmn = 1. / (P->m * P->n); + P->es = 0.; + P->inv = 0; + P->fwd = s_forward; +ENDENTRY(P) |