Copter: interpret MAV_FRAME_GLOBAL_RELATIVE_ALT as MAV_FRAME_GLOBAL_RELATIVE_ALT_INT

ArduCopter/GCS_Mavlink.cpp

@@ -1727,6 +1727,7 @@ void GCS_MAVLINK::handleMessage(mavlink_message_t* msg)
 
         // check for supported coordinate frames
         if (packet.coordinate_frame != MAV_FRAME_GLOBAL_INT &&
+            packet.coordinate_frame != MAV_FRAME_GLOBAL_RELATIVE_ALT && // solo shot manager incorrectly sends RELATIVE_ALT instead of RELATIVE_ALT_INT
             packet.coordinate_frame != MAV_FRAME_GLOBAL_RELATIVE_ALT_INT &&
             packet.coordinate_frame != MAV_FRAME_GLOBAL_TERRAIN_ALT_INT) {
             break;
@@ -1751,6 +1752,7 @@ void GCS_MAVLINK::handleMessage(mavlink_message_t* msg)
             loc.lng = packet.lon_int;
             loc.alt = packet.alt*100;
             switch (packet.coordinate_frame) {
+                case MAV_FRAME_GLOBAL_RELATIVE_ALT: // solo shot manager incorrectly sends RELATIVE_ALT instead of RELATIVE_ALT_INT
                 case MAV_FRAME_GLOBAL_RELATIVE_ALT_INT:
                     loc.flags.relative_alt = true;
                     loc.flags.terrain_alt = false;