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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/gins8.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/gins8.cpp')
| -rw-r--r-- | src/projections/gins8.cpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/projections/gins8.cpp b/src/projections/gins8.cpp new file mode 100644 index 00000000..cc422437 --- /dev/null +++ b/src/projections/gins8.cpp @@ -0,0 +1,33 @@ +#define PJ_LIB__ +#include "projects.h" + +PROJ_HEAD(gins8, "Ginsburg VIII (TsNIIGAiK)") "\n\tPCyl, Sph, no inv"; + +#define Cl 0.000952426 +#define Cp 0.162388 +#define C12 0.08333333333333333 + + +static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */ + XY xy = {0.0,0.0}; + double t = lp.phi * lp.phi; + (void) P; + + xy.y = lp.phi * (1. + t * C12); + xy.x = lp.lam * (1. - Cp * t); + t = lp.lam * lp.lam; + xy.x *= (0.87 - Cl * t * t); + + return xy; +} + + +PJ *PROJECTION(gins8) { + P->es = 0.0; + P->inv = nullptr; + P->fwd = s_forward; + + return P; +} + + |