The images below illustrate some basic concepts related to the creation of spiral beams. Note that if you change the positioning, the entire geometry of the spiral beam changes.
(1) Start point (the first point picked)
(2) Center point (the second point picked)
(3) Direction of the rotation axis (the optional third point picked)
(4) Center axis
(5) Total rise: the distance from the start point to the end point, parallel to the center axis
(6) Rotation angle: the rotation angle of the spiral beam, given in degrees. Note: positive value = counter-clockwise rotation, negative value = clockwise rotation.
(7) Radius: the distance from the start point to the center point, perpendicular to the center axis