From 1011251504a4cb060e783b79bfccd4db6a390dc5 Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Mon, 23 Apr 2012 13:59:01 +0100
Subject: [PATCH] Feature request for Syd - expose the ND view heading

---
 src/Instrumentation/NavDisplay.cxx | 2 ++
 src/Instrumentation/NavDisplay.hxx | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Instrumentation/NavDisplay.cxx b/src/Instrumentation/NavDisplay.cxx
index c45a705ef..5c6720ae1 100644
--- a/src/Instrumentation/NavDisplay.cxx
+++ b/src/Instrumentation/NavDisplay.cxx
@@ -540,6 +540,7 @@ NavDisplay::init ()
     _testModeNode = _Instrument->getChild("test-mode", 0, true);
     _testModeNode->setBoolValue(false);
   
+    _viewHeadingNode = _Instrument->getChild("view-heading-deg", 0, true);
 // OSG geometry setup
     _radarGeode = new osg::Geode;
 
@@ -647,6 +648,7 @@ NavDisplay::update (double delta_time_sec)
   } else {
     _view_heading = _Instrument->getFloatValue("heading-up-deg", 0.0);
   }
+  _viewHeadingNode->setDoubleValue(_view_heading);
   
   double xCenterFrac = _xCenterNode->getDoubleValue();
   double yCenterFrac = _yCenterNode->getDoubleValue();
diff --git a/src/Instrumentation/NavDisplay.hxx b/src/Instrumentation/NavDisplay.hxx
index 3e7adc7fa..daa4ae34d 100644
--- a/src/Instrumentation/NavDisplay.hxx
+++ b/src/Instrumentation/NavDisplay.hxx
@@ -146,7 +146,8 @@ private:
     SGPropertyNode_ptr _navRadio1Node;
     SGPropertyNode_ptr _navRadio2Node;
     SGPropertyNode_ptr _xCenterNode, _yCenterNode;
-    
+    SGPropertyNode_ptr _viewHeadingNode;
+  
     osg::ref_ptr<osg::Texture2D> _symbolTexture;
     osg::ref_ptr<osg::Geode> _radarGeode;
     osg::ref_ptr<osg::Geode> _textGeode;
-- 
2.39.5