imagearc
(PHP 3, PHP 4 )
imagearc -- Draw a partial ellipse
Description
int imagearc ( resource image, int cx, int cy, int w, int
h, int s, int e, int color)
imagearc() draws a partial ellipse centered at cx, cy (top
left is 0, 0) in the image represented by image. W and h
specifies the ellipse's width and height respectively while
the start and end points are specified in degrees indicated
by the s and e arguments. 0° is located at the three-o'clock
position, and the arc is drawn counter-clockwise.
Example 1. Drawing a circle with imagearc()
<?php
// create a 200*200 image
$img = imagecreate(200, 200);
// allocate some colors
$white = imagecolorallocate($img, 255, 255, 255);
// draw a white circle
imagearc($img, 100, 100, 150, 150, 0, 360, $white);
// output image in the browser
header("Content-type: image/png");
imagepng($img);
// free memory
imagedestroy($img);
?>
See also imageellipse(), imagefilledellipse(), and imagefilledarc().
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