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AP_Math: prevent negative longitude scaling

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for crazy locations
This commit is contained in:
Andrew Tridgell 2014-08-07 09:30:02 +10:00
parent 7752196628
commit b92873cab1
1 changed files with 1 additions and 0 deletions
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libraries/AP_Math/location.cpp
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@ -44,6 +44,7 @@ float longitude_scale(const struct Location &loc)
return scale; return scale;
} }
scale = cosf(loc.lat * 1.0e-7f * DEG_TO_RAD); scale = cosf(loc.lat * 1.0e-7f * DEG_TO_RAD);
scale = constrain_float(scale, 0.01f, 1.0f);
last_lat = loc.lat; last_lat = loc.lat;
return scale; return scale;
} }