From 4dbfc6cadaaa59e0863ecb3a6dff186c2fff4f9e Mon Sep 17 00:00:00 2001
From: DonLakeFlyer <don@thegagnes.com>
Date: Thu, 8 Jun 2017 13:20:57 -0700
Subject: [PATCH] Better NaN checking

---
 src/MissionManager/VisualMissionItem.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/MissionManager/VisualMissionItem.cc b/src/MissionManager/VisualMissionItem.cc
index 12f30c087..0e3c58672 100644
--- a/src/MissionManager/VisualMissionItem.cc
+++ b/src/MissionManager/VisualMissionItem.cc
@@ -112,6 +112,9 @@ void VisualMissionItem::setAzimuth(double azimuth)
 void VisualMissionItem::setMissionFlightStatus(MissionController::MissionFlightStatus_t& missionFlightStatus)
 {
     _missionFlightStatus = missionFlightStatus;
+    if (qIsNaN(_missionFlightStatus.gimbalYaw) && qIsNaN(_missionGimbalYaw)) {
+        return;
+    }
     if (_missionFlightStatus.gimbalYaw != _missionGimbalYaw) {
         _missionGimbalYaw = _missionFlightStatus.gimbalYaw;
         emit missionGimbalYawChanged(_missionGimbalYaw);
-- 
2.22.0