Ps_arc draws an arc counterclockwise
#include <pslib.h>
void PS_arc(PSDoc *psdoc, float x, float y, float radius, float alpha, float beta)
Draws a portion of a circle with its middle point at (x, y). The arc starts at an angle of alpha and ends at an angle of beta. It is drawn counterclockwise. The subpath added to the current path starts on the arc at angle alpha and ends on the arc at angle beta.
This manual page was written by Uwe Steinmann [email protected].