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| author | Yann Chemin <ychemin@gmail.com> | 2016-02-28 21:22:33 +0100 |
|---|---|---|
| committer | Yann Chemin <ychemin@gmail.com> | 2016-02-28 21:22:33 +0100 |
| commit | 9b8f68d61acd10502ce9c985e8fdfd5d5994310a (patch) | |
| tree | e33937f6cf20ba491c0225cfddf2552507c8c57a /src | |
| parent | fa0cd6836ef9ea2ab36ff837f2c8ac11cf52f00a (diff) | |
| download | PROJ-9b8f68d61acd10502ce9c985e8fdfd5d5994310a.tar.gz PROJ-9b8f68d61acd10502ce9c985e8fdfd5d5994310a.zip | |
Added more descriptive docs about the OCEA options
Diffstat (limited to 'src')
| -rw-r--r-- | src/PJ_ocea.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_ocea.c b/src/PJ_ocea.c index 991ed1ef..b268e1b8 100644 --- a/src/PJ_ocea.c +++ b/src/PJ_ocea.c @@ -41,6 +41,7 @@ ENTRY0(ocea) P->rok = P->a / P->k0; P->rtk = P->a * P->k0; + /*If the keyword "alpha" is found in the sentence then use 1point+1azimuth*/ if ( pj_param(P->ctx, P->params, "talpha").i) { /*Define Pole of oblique transformation from 1 point & 1 azimuth*/ alpha = pj_param(P->ctx, P->params, "ralpha").f; @@ -49,6 +50,7 @@ ENTRY0(ocea) P->singam = atan(-cos(alpha)/(-sin(phi_0) * sin(alpha))) + lonz; /*Equation 9-7 page 80 (http://pubs.usgs.gov/pp/1395/report.pdf)*/ P->sinphi = asin(cos(phi_0) * sin(alpha)); + /*If the keyword "alpha" is NOT found in the sentence then use 2points*/ } else { /*Define Pole of oblique transformation from 2 points*/ phi_1 = pj_param(P->ctx, P->params, "rlat_1").f; |