Difference between revisions of "Talk:Quaternion"
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-- Catherine Pfeffer, 2007-12-07 | -- Catherine Pfeffer, 2007-12-07 | ||
:That is correct, LSL uses right-hand rule set. | |||
Revision as of 18:44, 7 December 2007
This text says that you rotate a vector Q by a rotation z with the formula :
Q' = zQz-1
but LSL proceeds in reverse order when it rotates a vector by a rotation (* operator) :
Q' = z-1Qz
Just give a try if you don't believe me... ;-). The reason is LSL follows the right-hand rule for direction of positive rotations.
This has consequences over the rest of computations.
-- Catherine Pfeffer, 2007-12-06
This text has two shemas at the end. If you look well at it, the 90° rotation in the first schema and
in the second schema are supposed to be opposite (once in z direction, the other time in -z direction)
but the pink arrow materializing the rotation is the same.
It's the first schema that is correct (LSL follows right-hand rule for direction of positive rotations)
-- Catherine Pfeffer, 2007-12-07
- That is correct, LSL uses right-hand rule set.