Arguments: stream centre radius start-angle length-angle
Draws on stream a circle-arc, starting at start-angle and subtending length-angle, with the radius and center as specified. Angles are measures clockwise starting from the positive x-axis (taking the center as the origin). Thus start-angle 0 is the due East point if the circle is thought of as a compass. start-angle 0 and length-angle 90 draws the arc from due East to due South.
Note: incompatible change in release 6.0: in releases prior
to 6.0, when a frame-with-single-child instance
was passed to this operator, the operator was actually applied to the
child (the result of applying frame-child to the
frame-with-single-child instance). In release 6.0, this redirection no
longer occurs. If you intend this operator to apply to the
frame-child, pass that to this operator rather than the parent. This
is a non-backward-compatible-change. See the release notes for more
information.
Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.