Ashlynn's code for Drawing Circles and Ovals
SLAVE CODE FOLLOWS
<?php // create a PNG image file
// create a blank image that is 410 pixels wide and 300 pixels tall
$image = imagecreate(410, 300);
// create a color and fill (paint) the work area
// set the color RGB (238, 238, 238), which is GRAY
$gray = imagecolorallocate($image, 238, 238, 238);
// fill the entire image (410 px x 300 px)
imagefilledrectangle($image, 0, 0, 410, 300, $gray);
// === create an object (a circle)
// set the current foreground color to RGB (0, 0, 255), which is BLUE
$color = imagecolorallocate ($image, 0, 0, 255);
// DRAW a circle (image, x, y, arc-width, arc-height, start-angle, end-angle, color)
imagearc($image, 200, 150, 200, 200, 0, 360, $color);
// === create an object (an oval)
// set the current foreground color to RGB (0, 255, 0), which is RED
$color = imagecolorallocate ($image, 255, 0, 0);
// DRAW an oval (image, x, y, arc-width, arc-height, start-angle, end-angle, color)
imagearc($image, 200, 150, 400, 220, 0, 360, $color);
//=== display the image
// tell the server that a PNG image follows
header("Content-type: image/png");
// display the image
imagepng($image);
// destroy the image (i.e., release memory)
imagedestroy ($image);
?>