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62 Commits

Author SHA1 Message Date
Paul Riseborough 9f309a2aa6 AP_L1_Control: Remove potential nan errors 
If WP A and B were the same or ground speed was exactly zero, then the
previous code would produce a nan output.  Protection against these
two cases has been added.

If WP A and B are equal, we track directly to the target waypoint
 2013-05-13 11:27:51 +10:00
Andrew Tridgell 9654546b5a AP_L1_Control: Cleaned up calculation of damping to reduce computations 
also removed _cross2D, using math library instead
 2013-05-05 21:51:08 +10:00
Andrew Tridgell ba83950fc4 libraries: replace constrain() with constrain_float() 
this makes the type much more obvious. Thanks to Tobias for the
suggestion.
 2013-05-02 10:25:40 +10:00
Andrew Tridgell c067fa2660 L1_Control: make NAVL1_DAMPING docs clearer 2013-04-29 14:24:34 +10:00
priseborough 84ed37938d Plane : AP_L1_Control : Replaced division by constants with multiplies and adjusted default L1 period to 25 seconds 2013-04-28 14:47:59 +10:00
priseborough 9ff0888a17 AP_L1_Control : Fixed potential divide by zero in Nu1 angle calculation 2013-04-15 21:11:30 +10:00
Andrew Tridgell 97bfd16bd1 L1_Control: constrain the roll to handle floating point errors 2013-04-15 14:29:39 +10:00
Andrew Tridgell 571c48b9d5 L1_Control: cleanup some unused code and variables 2013-04-15 10:52:32 +10:00
priseborough a423d102e0 Plane : AP_L1_Control : Fix wrong way turn behaviour on loiter entry 2013-04-15 10:52:32 +10:00
Andrew Tridgell 181f7368a3 AP_L1_Control: change turn_distance() to be min of wp_radius and L1 distance 
this gives less surprising behaviour for users
 2013-04-15 10:52:32 +10:00
Andrew Tridgell dca597cda1 L1_Control: added a comment on speed of the L1 control code 2013-04-12 12:58:20 +10:00
Brandon Jones a3c2851120 AP_L1_Control: Addition of library for geometry calculations required for L1 Control. 
1) Explicit control of tracking loop period and damping which removes previous
   variation in period with speed and fixed damping ratio
2) Explicit control of track capture angle (now set to 45 degrees by default)
3) Removal of restriction on loiter radius being greater than L1 distance

The circle(loiter) control is a L1 and PD hybrid utilising L1 for waypoint capture and PD control for circle tracking.

Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
Pair-Programmed-With: Andrew Tridgell <tridge@samba.org>
 2013-04-12 12:48:09 +10:00