View Single Post
  #51   Spotlight this post!  
Unread 17-01-2007, 06:58
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,113
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Where is the multi object tracking code for the RC?

Quote:
Originally Posted by Brad Voracek View Post
My question, what is the best way to change those PWM outputs to a tangible angle for the tangent function to use?
I believe the best way is not to use the tangent function on an angle in the code. It's both easier and quicker to use a small lookup table that turns the camera tilt PWM value into a distance.

You can use a tangent function when you create the lookup table, of course. Or you can fill in the table empirically by repeatedly placing the robot a known distance from the target and observing the tilt angle.