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| author | Kristian Evers <kristianevers@gmail.com> | 2018-12-26 10:53:01 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-26 10:53:01 +0100 |
| commit | 81ec8c0b58d66333fccd3703dab62a11132a0331 (patch) | |
| tree | 41b4675d169f849516649700ab4f50d4cffa4c02 /src/projections/larr.cpp | |
| parent | 355d681ed88019e97742344bd642c2fd97e700a1 (diff) | |
| parent | 80dad6ef2bed4a83008db06986dc168918d48476 (diff) | |
| download | PROJ-81ec8c0b58d66333fccd3703dab62a11132a0331.tar.gz PROJ-81ec8c0b58d66333fccd3703dab62a11132a0331.zip | |
Merge pull request #1203 from rouault/cpp_conversion
Conversion of most C files to C++
Diffstat (limited to 'src/projections/larr.cpp')
| -rw-r--r-- | src/projections/larr.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/projections/larr.cpp b/src/projections/larr.cpp new file mode 100644 index 00000000..e4d5d240 --- /dev/null +++ b/src/projections/larr.cpp @@ -0,0 +1,28 @@ +#define PJ_LIB__ + +#include <math.h> + +#include "projects.h" + +PROJ_HEAD(larr, "Larrivee") "\n\tMisc Sph, no inv"; + +#define SIXTH .16666666666666666 + + +static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */ + XY xy = {0.0,0.0}; + (void) P; + + xy.x = 0.5 * lp.lam * (1. + sqrt(cos(lp.phi))); + xy.y = lp.phi / (cos(0.5 * lp.phi) * cos(SIXTH * lp.lam)); + return xy; +} + + +PJ *PROJECTION(larr) { + + P->es = 0; + P->fwd = s_forward; + + return P; +} |
