View Single Post
  #9   Spotlight this post!  
Unread 01-02-2010, 14:00
Abrakadabra Abrakadabra is offline
Here We Go !!!
AKA: Scott Kukshtel, Mr. K
FRC #3467 (The Windham Windup!)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2002
Location: Windham, New Hampshire
Posts: 159
Abrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant futureAbrakadabra has a brilliant future
Re: Holonomic drive angle?

Quote:
Originally Posted by PhilBot View Post
Sweeeet!

One of these days, the software community will rebel, and overthrow that -Y convention that probably came about because some EE wired the joystick in reverse on the first ever analog joystick.

I can hear the conference room meeting now:

SE: Darn..... the Y axis is reversed....
EE: It will cost to much money to fix the circuit.
SE: I guess we can fix it in software.
EE: Sure, no-one will ever know......
My theory is that it comes from the original purpose of these devices: "flight sticks", wherein if you push forward, you go down (i.e. in the negative direction), and if you pull back, you go up (i.e. in the positive direction. The trick is that when you are flying, the x-y plane cuts through your body from head to toe, and when driving a robot, we think of it as the floor.

This is all just speculation (i.e. I don't have any sources to quote), but it seems to make sense.
Reply With Quote