<?php
/* Note: all angles in degrees */
/* Draw an arc length from $start_a -> $end_a using
radius $radius (counter-clockwise) */
pdf_arc($pdf_r, PAGE_WIDTH/2, PAGE_HEIGHT/2, $radius, $start_a, $end_a);
pdf_stroke($pdf_r);
/* Draw an arc length from $start_a -> $end_a using
radius $radius (clockwise) */
pdf_arcn($pdf_r, PAGE_WIDTH/2, PAGE_HEIGHT/2, $radius, $start_a, $end_a);
pdf_stroke($pdf_r);
/* Draw a circle of radius $radius */
pdf_circle($pdf_r, PAGE_WIDTH/2, PAGE_HEIGHT/2, $radius);
pdf_stroke($pdf_r);
?>
