From ae4ba48ce29e61550a33af587e4fe5694cb18232 Mon Sep 17 00:00:00 2001
From: Colin <me@cjdawson.com>
Date: Thu, 2 May 2019 16:12:53 +0100
Subject: [PATCH] Added support for reading Declination

---
 .../TelescopeControllerUnitTests.cs             | 15 +++++++++++++++
 MeadeAutostar497/AscomClasses/Telescope.cs      |  2 +-
 .../Controller/ITelescopeController.cs          |  1 +
 .../Controller/TelescopeController.cs           | 17 ++++++++++++++++-
 4 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/MeadeAutostar497.UnitTests/TelescopeControllerUnitTests.cs b/MeadeAutostar497.UnitTests/TelescopeControllerUnitTests.cs
index c5e8fe7..a52d946 100644
--- a/MeadeAutostar497.UnitTests/TelescopeControllerUnitTests.cs
+++ b/MeadeAutostar497.UnitTests/TelescopeControllerUnitTests.cs
@@ -536,5 +536,20 @@ namespace MeadeAutostar497.UnitTests
 
             Assert.That( az, Is.EqualTo(expectedResult));
         }
+
+        [TestCase("+75*13", 75.2166666666666654)]
+        [TestCase("+65*13'21", 65.222499999999997)]
+        public void Declination_CanGetValue(string response, double expectedResult)
+        {
+            serialMock.Setup(x => x.CommandTerminated(":GD#", "#")).Returns(response);
+
+            _isConnected = true;
+
+            _telescopeController.Connected = true;
+
+            var result = _telescopeController.Declination;
+
+            Assert.That(result, Is.EqualTo(expectedResult));
+        }
     }
 }
diff --git a/MeadeAutostar497/AscomClasses/Telescope.cs b/MeadeAutostar497/AscomClasses/Telescope.cs
index dbff572..9a7c05e 100644
--- a/MeadeAutostar497/AscomClasses/Telescope.cs
+++ b/MeadeAutostar497/AscomClasses/Telescope.cs
@@ -524,7 +524,7 @@ namespace ASCOM.MeadeAutostar497
         {
             get
             {
-                double declination = 0.0;
+                double declination = _telescopeController.Declination;
                 tl.LogMessage("Declination", "Get - " + utilities.DegreesToDMS(declination, ":", ":"));
                 return declination;
             }
diff --git a/MeadeAutostar497/Controller/ITelescopeController.cs b/MeadeAutostar497/Controller/ITelescopeController.cs
index a8f7de8..6f1f3fa 100644
--- a/MeadeAutostar497/Controller/ITelescopeController.cs
+++ b/MeadeAutostar497/Controller/ITelescopeController.cs
@@ -15,6 +15,7 @@ namespace ASCOM.MeadeAutostar497.Controller
         AlignmentModes AlignmentMode { get; set; }
         bool AtPark { get; }
         double Azimuth { get; }
+        double Declination { get; }
         void AbortSlew();
         void PulseGuide(GuideDirections direction, int duration);
         void Park();
diff --git a/MeadeAutostar497/Controller/TelescopeController.cs b/MeadeAutostar497/Controller/TelescopeController.cs
index d85f038..04d8dff 100644
--- a/MeadeAutostar497/Controller/TelescopeController.cs
+++ b/MeadeAutostar497/Controller/TelescopeController.cs
@@ -320,7 +320,22 @@ namespace ASCOM.MeadeAutostar497.Controller
                 
                 return az;
             }
-        }       
+        }
+
+        public double Declination
+        {
+            get
+            {
+                var result = SerialPort.CommandTerminated(":GD#", "#");
+                //:GD# Get Telescope Declination.
+                //Returns: sDD* MM# or sDD*MM’SS#
+                //Depending upon the current precision setting for the telescope.
+
+                double az = DMSToDouble(result);
+
+                return az;
+            }
+        }
 
         public void AbortSlew()
         {