From db9ccd9ca856c07f5e32c21dcbb6252f6fa8b598 Mon Sep 17 00:00:00 2001
From: srcejon <jon@beniston.com>
Date: Wed, 4 Jun 2025 18:15:59 +0100
Subject: [PATCH] Azel: Mark methods as const.

---
 sdrbase/util/azel.cpp |  4 ++--
 sdrbase/util/azel.h   | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/sdrbase/util/azel.cpp b/sdrbase/util/azel.cpp
index 4e58ab696..01a6b9e76 100644
--- a/sdrbase/util/azel.cpp
+++ b/sdrbase/util/azel.cpp
@@ -22,7 +22,7 @@
 #include <cmath>
 
 // Calculate cartesian distance between two points
-double AzEl::cartDistance(const AzElPoint& a, const AzElPoint& b)
+double AzEl::cartDistance(const AzElPoint& a, const AzElPoint& b) const
 {
     double dx = b.m_cart.m_x - a.m_cart.m_x;
     double dy = b.m_cart.m_y - a.m_cart.m_y;
@@ -31,7 +31,7 @@ double AzEl::cartDistance(const AzElPoint& a, const AzElPoint& b)
 }
 
 // Calculate vector difference then normalise the result
-bool AzEl::normVectorDiff(const AzElCartesian& a, const AzElCartesian& b, AzElCartesian& n)
+bool AzEl::normVectorDiff(const AzElCartesian& a, const AzElCartesian& b, AzElCartesian& n) const
 {
     n.m_x = b.m_x - a.m_x;
     n.m_y = b.m_y - a.m_y;
diff --git a/sdrbase/util/azel.h b/sdrbase/util/azel.h
index ead06a639..01ef8aa15 100644
--- a/sdrbase/util/azel.h
+++ b/sdrbase/util/azel.h
@@ -69,22 +69,22 @@ public:
         sphericalToCartesian(m_target);
     }
 
-    AzElSpherical getLocationSpherical()
+    AzElSpherical getLocationSpherical() const
     {
         return m_location.m_spherical;
     }
 
-    AzElCartesian getLocationCartesian()
+    AzElCartesian getLocationCartesian() const
     {
         return m_location.m_cart;
     }
 
-    AzElSpherical getTargetSpherical()
+    AzElSpherical getTargetSpherical() const
     {
         return m_target.m_spherical;
     }
 
-    AzElCartesian getTargetCartesian()
+    AzElCartesian getTargetCartesian() const
     {
         return m_target.m_cart;
     }
@@ -113,8 +113,8 @@ public:
 
 private:
 
-    double cartDistance(const AzElPoint& a, const AzElPoint& b);
-    bool normVectorDiff(const AzElCartesian& a, const AzElCartesian& b, AzElCartesian& n);
+    double cartDistance(const AzElPoint& a, const AzElPoint& b) const;
+    bool normVectorDiff(const AzElCartesian& a, const AzElCartesian& b, AzElCartesian& n) const;
     double geocentricLatitude(double latRad) const;
     double earthRadiusInMetres(double geodeticLatRad) const;
     void sphericalToCartesian(AzElPoint& point);