llRot2Left

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/LSL

Rot2Left

llRot2Left

Summary

Function: vector llRot2Left( rotation q );

0.0	Forced Delay
10.0	Energy

Computes the orientation of the local y-axis relative to the earth.
Returns a vector that is the left vector defined by q, i.e. a unit vector pointing in the local positive Y direction

• rotation

q

Can be useful to identify the orientation of the local  sagittal-plane of the prim, since it's y-axis is always perpendicular to this local sagittal-plane.

Specification

Mathematically equivalent to: <lsl>ret = llVecNorm(<0., 1., 0.> * q);</lsl> If q is known to be a unit quaternion then it can be simplified as: <lsl>ret = <0., 1., 0.> * q;</lsl>

Examples

See Also

Functions

•	llRot2Up
•	llRot2Fwd
•	llRot2Axis
•	llRot2Angle

Deep Notes

Signature
function vector llRot2Left( rotation q );