From 610957f7035242f15743c399ffd429b92bc36206 Mon Sep 17 00:00:00 2001 From: Even Rouault Date: Tue, 18 Dec 2018 20:24:11 +0100 Subject: cpp conversion: minimal steps to fix compilation errors, not warnings --- src/geod_interface.cpp | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/geod_interface.cpp (limited to 'src/geod_interface.cpp') diff --git a/src/geod_interface.cpp b/src/geod_interface.cpp new file mode 100644 index 00000000..a30377ac --- /dev/null +++ b/src/geod_interface.cpp @@ -0,0 +1,33 @@ +#include "projects.h" +#include "geod_interface.h" + +void geod_ini(void) { + geod_init(&GlobalGeodesic, geod_a, geod_f); +} + +void geod_pre(void) { + double + lat1 = phi1 / DEG_TO_RAD, lon1 = lam1 / DEG_TO_RAD, + azi1 = al12 / DEG_TO_RAD; + geod_lineinit(&GlobalGeodesicLine, &GlobalGeodesic, lat1, lon1, azi1, 0U); +} + +void geod_for(void) { + double + s12 = geod_S, lat2, lon2, azi2; + geod_position(&GlobalGeodesicLine, s12, &lat2, &lon2, &azi2); + azi2 += azi2 >= 0 ? -180 : 180; /* Compute back azimuth */ + phi2 = lat2 * DEG_TO_RAD; + lam2 = lon2 * DEG_TO_RAD; + al21 = azi2 * DEG_TO_RAD; +} + +void geod_inv(void) { + double + lat1 = phi1 / DEG_TO_RAD, lon1 = lam1 / DEG_TO_RAD, + lat2 = phi2 / DEG_TO_RAD, lon2 = lam2 / DEG_TO_RAD, + azi1, azi2, s12; + geod_inverse(&GlobalGeodesic, lat1, lon1, lat2, lon2, &s12, &azi1, &azi2); + azi2 += azi2 >= 0 ? -180 : 180; /* Compute back azimuth */ + al12 = azi1 * DEG_TO_RAD; al21 = azi2 * DEG_TO_RAD; geod_S = s12; +} -- cgit v1.2.3