llAngleBetween

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/LSL

AngleBetween

llAngleBetween

Summary

1 Bug

Function: float llAngleBetween( rotation a, rotation b );

0.0	Forced Delay
10.0	Energy

Returns a float that is the angle between rotation a and b.

• rotation	a	–	start rotation
• rotation	b	–	end rotation

Examples

See Also

Functions

•	llRotBetween
•	llRot2Angle	–	Similar functionality used for the Axis-Angle format

Deep Notes

<lsl>float AngleBetween(rotation a, rotation b) {

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

}</lsl>

Signature
function float llAngleBetween( rotation a, rotation b );