Merge pull request #3737 from DonLakeFlyer/HomeDistance

Fix home position distance to 0.0

src/MissionEditor/MissionItemStatus.qml

@@ -34,7 +34,7 @@ Rectangle {
     property bool   _expanded:          true
     property real   _distance:          _statusValid ? _currentMissionItem.distance : 0
     property real   _altDifference:     _statusValid ? _currentMissionItem.altDifference : 0
-    property real   _gradient:          _statusValid ? Math.atan(_currentMissionItem.altDifference / _currentMissionItem.distance) : 0
+    property real   _gradient:          _statusValid || _currentMissionItem.distance == 0 ? Math.atan(_currentMissionItem.altDifference / _currentMissionItem.distance) : 0
     property real   _gradientPercent:   isNaN(_gradient) ? 0 : _gradient * 100
     property real   _azimuth:           _statusValid ? _currentMissionItem.azimuth : -1
     property bool   _statusValid:       currentMissionItem != undefined

src/MissionManager/MissionController.cc

@@ -596,7 +596,7 @@ void MissionController::_calcPrevWaypointValues(double homeAlt, VisualMissionIte
     } else {
         *altDifference = 0.0;
         *azimuth = 0.0;
-        *distance = -1.0;   // Signals no values
+        *distance = 0.0;
     }
 }
 
@@ -708,7 +708,7 @@ void MissionController::_recalcAltitudeRangeBearing()
     // No values for first item
     lastCoordinateItem->setAltDifference(0.0);
     lastCoordinateItem->setAzimuth(0.0);
-    lastCoordinateItem->setDistance(-1.0);
+    lastCoordinateItem->setDistance(0.0);
 
     double minAltSeen = 0.0;
     double maxAltSeen = 0.0;
@@ -721,7 +721,7 @@ void MissionController::_recalcAltitudeRangeBearing()
 
         // Assume the worst
         item->setAzimuth(0.0);
-        item->setDistance(-1.0);
+        item->setDistance(0.0);
 
         // If we still haven't found the first coordinate item and we hit a a takeoff command link back to home
         if (firstCoordinateItem &&