From 50e024fe8f0798702d102b97fa99d9ce99034fe1 Mon Sep 17 00:00:00 2001
From: Randy Mackay <rmackay9@yahoo.com>
Date: Wed, 11 Jun 2014 11:57:01 +0900
Subject: [PATCH] Copter: flag current alt as relative

This is required so common Log_Write_Camera can calculate relative and
abs altitudes provided by either copter or plane

pair programmed with Craig Elder
---
 ArduCopter/inertia.pde | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ArduCopter/inertia.pde b/ArduCopter/inertia.pde
index ba29c47745..e8810d289b 100644
--- a/ArduCopter/inertia.pde
+++ b/ArduCopter/inertia.pde
@@ -12,5 +12,6 @@ static void read_inertial_altitude()
 {
     // with inertial nav we can update the altitude and climb rate at 50hz
     current_loc.alt = inertial_nav.get_altitude();
+    current_loc.flags.relative_alt = true;
     climb_rate = inertial_nav.get_velocity_z();
 }