List of Spline Knot Types
Knot types. One of the following values:
KTYPE_AUTO
This type of knot generates the bezier handles automatically to produce a smooth curve. With this knot type the bezier handles are invisible.
KTYPE_CORNER
This knot type produces a sharp corner.
KTYPE_BEZIER
This knot type produces bezier handles that are collinear (the bezier vectors coming out of the knot are collinear). These handles are constrained to be collinear so if the user moves one handle the other will move to remain collinear. Also if the user moves the handle towards or away from the knot the other handle will move the corresponding amount in the proper scale.
KTYPE_BEZIER_CORNER
This knot type has bezier handles but they are not constrained to be opposite each other.