(PECL imagick 2.0.0)
ImagickDraw::pathEllipticArcRelative — Draws an elliptical arc
$rx
   , float $ry
   , float $x_axis_rotation
   , bool $large_arc_flag
   , bool $sweep_flag
   , float $x
   , float $y
   )This function is currently not documented; only its argument list is available.
   Draws an elliptical arc from the current point to (x, y) using relative
   coordinates. The size and orientation of the ellipse are defined by two
   radii (rx, ry) and an xAxisRotation, which indicates how the ellipse as
   a whole is rotated relative to the current coordinate system. The center
   (cx, cy) of the ellipse is calculated automatically to satisfy the
   constraints imposed by the other parameters. largeArcFlag and sweepFlag
   contribute to the automatic calculations and help determine how the arc
   is drawn. If largeArcFlag is TRUE then draw the larger of the available
   arcs. If sweepFlag is true, then draw the arc matching a clock-wise
   rotation.
  
rxx radius
ryy radius
x_axis_rotationx axis rotation
large_arc_flaglarge arc flag
sweep_flagsweep flag
xx coordinate
yy coordinate
No value is returned.