Don't overwrite good gps headings (e.g. from a GPHDT message) with n/…

…a values from another message (cherry picked from commit 6a72939)
qgis · Dec 6, 2019 · c396c0b · c396c0b
1 parent d752bd5
commit c396c0b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/core/gps/qgsnmeaconnection.cpp b/src/core/gps/qgsnmeaconnection.cpp
@@ -223,7 +223,8 @@ void QgsNmeaConnection::processRmcSentence( const char *data, int len )
     mLastGPSInformation.longitude = nmea_ndeg2degree( longitude );
     mLastGPSInformation.latitude = nmea_ndeg2degree( latitude );
     mLastGPSInformation.speed = KNOTS_TO_KMH * result.speed;
-    mLastGPSInformation.direction = result.direction;
+    if ( !std::isnan( result.direction ) )
+      mLastGPSInformation.direction = result.direction;
     mLastGPSInformation.status = result.status;  // A,V
 
     //date and time