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authorKristian Evers <kristianevers@gmail.com>2018-12-26 10:53:01 +0100
committerGitHub <noreply@github.com>2018-12-26 10:53:01 +0100
commit81ec8c0b58d66333fccd3703dab62a11132a0331 (patch)
tree41b4675d169f849516649700ab4f50d4cffa4c02 /src/projections/cc.cpp
parent355d681ed88019e97742344bd642c2fd97e700a1 (diff)
parent80dad6ef2bed4a83008db06986dc168918d48476 (diff)
downloadPROJ-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.cpp41
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;
+}