From 2a3e00bba9d986951bc56d3da3e642abc46cd5fa Mon Sep 17 00:00:00 2001
From: "Timur A. Fatkhullin" <timur@sao.ru>
Date: Fri, 28 Mar 2025 15:39:25 +0300
Subject: [PATCH] ...

---
 cxx/mount.h | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 72 insertions(+), 1 deletion(-)

diff --git a/cxx/mount.h b/cxx/mount.h
index f23a287..e5c3777 100644
--- a/cxx/mount.h
+++ b/cxx/mount.h
@@ -75,11 +75,13 @@ struct MccMountPosition {
     mnt_coord_t tagRA, tagDEC;
     mnt_coord_t tagHA;
     mnt_coord_t tagAZ, tagZD;
+    mnt_coord_t tagPA;  // paralactic angle
 
     // encoder-measured current mount coordinates (in radians)
     mnt_coord_t mntRA, mntDEC;
     mnt_coord_t mntHA;
     mnt_coord_t mntAZ, mntZD;
+    mnt_coord_t mntPA;
 
     // encoder-measured current mount moving speed (in radians/s)
     // X - HA, Y - DEC for equatorial-type mount; X - AZ, Y - ZD for horizontal-type one
@@ -94,6 +96,18 @@ struct MccMountPosition {
 };
 
 
+// mount site geographical location
+struct MccMountSiteInfo {
+    typedef double mnt_site_coord_t;
+    typedef double mnt_site_elev_t;
+
+    mnt_site_coord_t latitude;   // in radians
+    mnt_site_coord_t longitude;  // in radians (positive to the East)
+    mnt_site_elev_t elevation;   // in meters
+
+    std::string_view name;
+};
+
 
 /*   MOUNT BASE TEMPLATED CLASS WITH BASIC FUNCTIONALITY   */
 
@@ -192,12 +206,68 @@ public:
     }
 
 
+    // geo location setters/getters
 
-    void setMeteo(std::derived_from<MccMountMeteo> auto const& meteo)
+    void setGeoLocation(const MccMountSiteInfo& geoloc)
+    {
+        _geoLocation.store(geoloc);
+    }
+
+    void setSiteLatitude(auto const& lat)
+    {
+        auto v = utils::parsAngleString(lat);
+        if (v.has_value()) {
+            auto st = _geoLocation.load();
+            st.latitude = v.value() * utils::deg2radCoeff;  // to radians
+            logInfo("Set current site latitude to {} radians", st.latitude);
+            _geoLocation.store(st);
+        } else {
+            logError("Invalid user latitude value! Do not change the current value!");
+        }
+    }
+
+    void setSiteLongitude(auto const& lon)
+    {
+        auto v = utils::parsAngleString(lon);
+        if (v.has_value()) {
+            auto st = _geoLocation.load();
+            st.longitude = v.value() * utils::deg2radCoeff;  // to radians
+            logInfo("Set current site longitude to {} radians", st.longitude);
+            _geoLocation.store(st);
+        } else {
+            logError("Invalid user longitude value! Do not change the current value!");
+        }
+    }
+
+    void setSiteElevation(MccMountSiteInfo::mnt_site_elev_t elev)
+    {
+        auto st = _geoLocation.load();
+        st.elevation = elev;
+        logInfo("Set current site elevation to {} meters", st.elevation);
+        _geoLocation.store(st);
+    }
+
+
+    MccMountSiteInfo getGeoLocation() const
+    {
+        return _geoLocation.load();
+    }
+
+
+    // current meteo setters/getters
+
+    void setMeteo(const MccMountMeteo& meteo)
     {
         _currentMeteo.store(meteo);
     }
 
+    MccMountMeteo getMeteo() const
+    {
+        return _currentMeteo.load();
+    }
+
+
+    // IERS databases updater
 
     bool updateIERSDatabase(IersDatabaseType type)
     {
@@ -241,6 +311,7 @@ protected:
 
     std::atomic<mount_orient_t> _currentMountOrient;
 
+    std::atomic<MccMountSiteInfo> _geoLocation;
     std::atomic<MccMountMeteo> _currentMeteo;
 };