The segment kind, always arc.
The 2D point the arc ends at.
The 2D center of the ellipse the arc lies on.
OptionalrxThe half-width of the ellipse along its rotated x axis.
OptionalryThe half-width of the ellipse along its rotated y axis.
OptionalxHow far the ellipse is turned in the plane, in radians, counterclockwise in path space.
OptionalstartThe angle on the ellipse where the arc starts, in radians.
OptionaldeltaHow far the arc sweeps from its start, in radians; negative sweeps clockwise in path space.
An elliptical arc segment of a path, given by its ellipse's center, radii and rotation and the angles it sweeps; all angles are in radians.