Draws a portion of a circle with at middle point at
y). The arc starts at an
alpha and ends at an angle of
beta. It is drawn counterclockwise (use
ps_arcn() to draw clockwise). The subpath added
to the current path starts on the arc at angle
and ends on the arc at angle
Resource identifier of the postscript file as returned by ps_new().
The x-coordinate of the circle's middle point.
The y-coordinate of the circle's middle point.
The radius of the circle
The start angle given in degrees.
The end angle given in degrees.