From 16dd71a04457663b1ac7192bb122b2d4af673927 Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Sun, 22 Mar 2009 18:39:47 +0000
Subject: [PATCH] wxradar: display transponder-id by default, fall back to
 callsign

---
 src/Instrumentation/wxradar.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Instrumentation/wxradar.cxx b/src/Instrumentation/wxradar.cxx
index d08a96812..968db833a 100644
--- a/src/Instrumentation/wxradar.cxx
+++ b/src/Instrumentation/wxradar.cxx
@@ -567,8 +567,12 @@ wxRadarBg::update_data(const SGPropertyNode *ac, double altitude, double heading
     callsign->setAlignment(osgText::Text::LEFT_BOTTOM_BASE_LINE);
     callsign->setLineSpacing(_font_spacing);
 
+    const char *identity = ac->getStringValue("transponder-id");
+    if (!identity[0])
+        identity = ac->getStringValue("callsign");
+
     stringstream text;
-    text << ac->getStringValue("callsign") << endl
+    text << identity << endl
             << setprecision(0) << fixed
             << setw(3) << setfill('0') << heading * SG_RADIANS_TO_DEGREES << "\xB0 "
             << setw(0) << altitude << "ft" << endl
-- 
2.39.5