llRot2Left

From Second Life Wiki
Jump to navigation Jump to search

Summary

Function: vector llRot2Left( rotation q );

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 "Wikipedia logo"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

Search JIRA for related Issues

Signature

function vector llRot2Left( rotation q );