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Copter: correct terrain-alt logging 

Also change to using an out-of-band value upon no-terrain-alt-available
This commit is contained in:
Peter Barker 2018-04-04 21:16:34 +10:00 committed by Randy Mackay
parent f7a168478d
commit 893b761533
1 changed files with 2 additions and 2 deletions
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4
ArduCopter/Log.cpp
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@ -115,8 +115,8 @@ void Copter::Log_Write_Control_Tuning()
// get terrain altitude
float terr_alt = 0.0f;
#if AP_TERRAIN_AVAILABLE && AC_TERRAIN
if (terrain.height_above_terrain(terr_alt, true)) {
terr_alt = 0.0f;
if (!terrain.height_above_terrain(terr_alt, true)) {
terr_alt = DataFlash.quiet_nan();
}
#endif