wiki question about sit target

[Xiija]

http://wiki.secondlife.com/wiki/LlSitTarget

 

the page says....rot affects the position of the sit-target in a buggy way way.

 To correct for the rot bug, simply subtract <0,0,0.4> from the position when rot is zero. See example below. 

 

but the example says when NOT zero?

 

  if (rot!=ZERO_ROTATION) pos -=<0,0,0.4>;  //here is the work around

 

thanks for any clarification :P

[Dora Gustafson]

It is a very unclear specification.
I have some experience on the subject and in my oppinion:

1. It is not a rotation bug but a position bug
2. The correction is added to (or subtracted from) the avatar's local Z coordinates

I have no idea what is meant by 'when rot is zero'
The correction applies for any rotation, but always on the avatar' local Z axis

:smileysurprised::smileyvery-happy:

 

[Adeon Writer]

The 0.4 offset always needs to be used to correctly position a prim's llSitTarget, regardless of the position or rotation you calculate. However, llSitTarget(ZERO_VECTOR, ZERO_ROTATION) is a special case that removes the sit target entirely.

I believe the wiki is speaking as if you are making a method that automatically fixes the offset before applying the sit target, which in that case you'd want to check for the case of zero_vector and zero_rotation, and not apply the offset, so that the sit target can still be removed.