TYPE: Object State
TITLE: Path

The Path tool allows to create an oriented curve (path). The orientation 
is defined by the normals of the control vertices. The control vertices
can be rotated by an arbitrary angle (even more than 360) and the orientation
on the curve between the control vertices will be interpolated using a 
flexible rope metaphor.

The geometry created by the Path tool has normal and twist attributes. 
The normal specifies the orientation, while the twist attributes are used
to determine the correct direction of the normal. The initial twist defines
the path twist distribution at the path creation time. The twist defines
the curve twist induced by the rotation of the handles after the path
was created.

An oriented path created by the Path tool can be used, for example, in
the Bones From Curve tool. The bones created from a path will flow 
naturally following the path  orientation.


See also: PathCV, BonesFromCurve
