llRot2Angle

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/LSL

Rot2Angle

llRot2Angle

Summary

Function: float llRot2Angle( rotation rot );

171	Function ID
0.0	Forced Delay
10.0	Energy

Returns a float that is the rotation angle represented by rot

• rotation

rot

Use in conjunction with llRot2Axis.
To undo use llAxisAngle2Rot.

Caveats

This always returns a positive angle <= PI radians, that is, it is the unsigned minimum angle. A rotation of 3/2 PI radians (270 degrees) will return an angle of PI / 2 radians, not -PI / 2.

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Examples

See Also

Functions

•	llAxisAngle2Rot
•	llRot2Axis
•	llRot2Up
•	llRot2Fwd
•	llRot2Left
•	llAngleBetween	–	Similar functionality.

Deep Notes

<lsl>float llRot2Angle(rotation a) {

   return llAcos(llFabs(a.s) / llSqrt(a.x * a.x + a.y * a.y + a.z * a.z + a.s * a.s)) * 2.0;

}</lsl>

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Signature
function float llRot2Angle( rotation rot );