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AP_Common: fix compile when using AP_TERRAIN_AVAILABLE 0

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This commit is contained in:
Tom Pittenger 2016-05-20 12:28:46 -07:00
parent 3555e439a4
commit f085666032
1 changed files with 5 additions and 1 deletions
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6
libraries/AP_Common/Location.cpp
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@ -128,13 +128,17 @@ bool Location_Class::get_alt_cm(ALT_FRAME desired_frame, int32_t &ret_alt_cm) co
}
// check for terrain altitude
float alt_terr_cm;
float alt_terr_cm = 0;
if (frame == ALT_FRAME_ABOVE_TERRAIN || desired_frame == ALT_FRAME_ABOVE_TERRAIN) {
#if AP_TERRAIN_AVAILABLE
if (_ahrs == NULL || _terrain == NULL || !_terrain->height_amsl(*(Location *)this, alt_terr_cm, true)) {
return false;
}
// convert terrain alt to cm
alt_terr_cm *= 100.0f;
#else
return false;
#endif
}
// convert alt to absolute