ellipse in dc-path%
Closes the open sub-path, if any, and adds a closed path that
represents an ellipse bounded by a rectangle whose top-left corner is
(x,y) and whose dimensions are
width by height. (This convenience method is implemented
in terms of
close and
arc.)
A path is not connected to any particular dc<%> object, so
setting a dc<%> origin or scale does not affect path
operations. Instead, a dc<%>'s origin and scale apply at the
time that the path is drawn or used to set a region.
(-> voidsenda-dc-pathellipsexywidthheight)
x: real number
y: real number
width: non-negative real number
height: non-negative real number