Re: [Plib-users] Problem with rotations

[Norman V. <nh...@ca...>]

Ben Woodhead writes:


> Ok, sorry my fault, it really was converting it back and forth between
euler
> and matrix. If I keep the matrix the hole time you just see a quick jump
to a
> different axe and then back. But this still does not explain why only
pitch
> does this.
>
> It seems to be only when pitch hits either 0 or 180 (and no others do
this).
> It will rotate with its feet around the x axes, but when x hits 0 or 180,
it
> roles so that its feet are on the y axes rotated 90 degrees. If that makes
> any sence.

Ben

Another way to think about this is
What direction(s) can you walk in if you are
EXACTLY at one of the Poles ?

< not exacly the same problem but very close >

Norman