LlAxisAngle2Rot

Function: rotation llAxisAngle2Rot( vector axis, float angle );

Returns a rotation that is a generated angle about axis
• vector axis
• float angle – expressed in radians.

axis need not be normalized, only the direction is important.

Examples

default {

   state_entry()
   {
       vector axis = <0.0, 0.0, 1.0>;
       float angle = 90.0 * DEG_TO_RAD;
       rotation rot = llAxisAngle2Rot(axis, angle);
       vector euler = llRot2Euler(rot) * RAD_TO_DEG;

       llOwnerSay((string) euler);
       //Says <0.0, 0.0, 90.0> since it is rotating 90 degrees on the Z axis caused by the 1.0 placed in the Z vector spot. 
   }

} </source>

See Also
Functions
• llRot2Angle
• llRot2Axis

Deep Notes

rotation llAxisAngle2Rot( vector axis, float angle ) {

   axis = llVecNorm( axis ) * llSin( angle/2 );
   return <axis.x, axis.y, axis.z, llCos( angle/2 )>;

} </source>