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AP_Declination: Moved check for y index of zero to after the y index is properly transformed.

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Adam M Rivera 2012-03-20 16:43:13 -05:00 committed by Andrew Tridgell
parent e99d26cfa3
commit 64c236800c
1 changed files with 4 additions and 5 deletions
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9
libraries/AP_Declination/AP_Declination.cpp
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@ -171,17 +171,16 @@ AP_Declination::get_lookup_value(uint8_t x, uint8_t y)
return val; return val;
} }
// If we are looking for the first value we can just use the
// row_start value from declination_keys
if(y == 0) return declination_keys.row_start[x];
// Because the values were removed from the start of the // Because the values were removed from the start of the
// original array (0-6) to the exception array, all the indicies // original array (0-6) to the exception array, all the indicies
// in this main lookup need to be shifted left 7 // in this main lookup need to be shifted left 7
// EX: User enters 7 -> 7 is the first row in this array so it needs to be zero // EX: User enters 7 -> 7 is the first row in this array so it needs to be zero
if(x >= 7) x -= 7; if(x >= 7) x -= 7;
// If we are looking for the first value we can just use the
// row_start value from declination_keys
if(y == 0) return declination_keys.row_start[x];
// Init vars // Init vars
row_value stval; row_value stval;
int16_t offset = 0; int16_t offset = 0;