Commit Graph

11 Commits

Author SHA1 Message Date
Adam M Rivera
63ce400f77 AP_Declination: Moved rows with large spikes in delta to their own unsigned exception rows. The signs are in a separate packed array. 2012-03-30 14:21:57 +11:00
Adam M Rivera
782c1aaaa3 AP_Declination: Implemented Delta Encoding and Run-Length Encoding. Added method to traverse the compressed array and return the lookup value based on the same lat_index/lon_index that was used before. 2012-03-30 14:21:57 +11:00
Adam M Rivera
9888a4730f AP_Declination: Changed PROGMEM read function to pgm_read_word_far to support the int16_t datatype. 2012-03-30 14:21:57 +11:00
Adam M Rivera
d883bdf75e AP_Declination: Changed datatype to int16_t to support the -90 <-> 90 latitude range. 2012-03-30 14:21:57 +11:00
Adam M Rivera
719636d00c AP_Declination: Reduced the size of the lookup table to support -75 <-> 70 latitude range. This allows the datatype to remain int8_t. 2012-03-30 14:21:57 +11:00
Andrew Tridgell
0e6037322a AP_Declination: fixed build of test sketch 2012-03-12 17:33:15 +11:00
Andrew Tridgell
b4d69ef473 AP_Declination: fixed usage of headers 2012-03-11 20:59:47 +11:00
Adam M Rivera
ad3a20b6a3 AP_Declination: Updated comment.
Signed-off-by: Andrew Tridgell <tridge@samba.org>
2012-03-11 20:59:47 +11:00
Adam M Rivera
94d1c48544 AP_Declination: Increased range of supported latitude coordinates.
Fixed incorrect type usage to save stack space.

Signed-off-by: Andrew Tridgell <tridge@samba.org>
2012-03-11 20:59:47 +11:00
Adam M Rivera
1709403b87 Added AP_Declination test sketch. I will be improving the test sketch soon.
Signed-off-by: Andrew Tridgell <tridge@samba.org>
2012-03-11 20:59:47 +11:00
Adam M Rivera
3f28184cb0 Added AP_Declination library. It contains the lookup table (lat/lng -> declination) as well as a method that performs the lookup.
Signed-off-by: Andrew Tridgell <tridge@samba.org>
2012-03-11 20:59:47 +11:00