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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/cc.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/cc.cpp')
| -rw-r--r-- | src/projections/cc.cpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/projections/cc.cpp b/src/projections/cc.cpp new file mode 100644 index 00000000..152e6e4a --- /dev/null +++ b/src/projections/cc.cpp @@ -0,0 +1,41 @@ +#define PJ_LIB__ + +#include <math.h> + +#include "proj.h" +#include "projects.h" + +PROJ_HEAD(cc, "Central Cylindrical") "\n\tCyl, Sph"; +#define EPS10 1.e-10 + + +static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */ + XY xy = {0.0,0.0}; + if (fabs (fabs(lp.phi) - M_HALFPI) <= EPS10) { + proj_errno_set(P, PJD_ERR_TOLERANCE_CONDITION); + return xy; + } + xy.x = lp.lam; + xy.y = tan(lp.phi); + return xy; +} + + +static LP s_inverse (XY xy, PJ *P) { /* Spheroidal, inverse */ + LP lp = {0.0,0.0}; + (void) P; + lp.phi = atan(xy.y); + lp.lam = xy.x; + return lp; +} + + + +PJ *PROJECTION(cc) { + P->es = 0.; + + P->inv = s_inverse; + P->fwd = s_forward; + + return P; +} |
