imagearc
(PHP 4, PHP 5)
imagearc — Draws an arc
Description
$image
, int $cx
, int $cy
, int $width
, int $height
, int $start
, int $end
, int $color
)imagearc() draws an arc of circle centered at the given coordinates.
Parameters
-
image -
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
-
cx -
x-coordinate of the center.
-
cy -
y-coordinate of the center.
-
width -
The arc width.
-
height -
The arc height.
-
start -
The arc start angle, in degrees.
-
end -
The arc end angle, in degrees. 0° is located at the three-o'clock position, and the arc is drawn clockwise.
-
color -
A color identifier created with imagecolorallocate().
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 Drawing a circle with imagearc()
<?php
// create a 200*200 image
$img = imagecreatetruecolor(200, 200);
// allocate some colors
$white = imagecolorallocate($img, 255, 255, 255);
$red = imagecolorallocate($img, 255, 0, 0);
$green = imagecolorallocate($img, 0, 255, 0);
$blue = imagecolorallocate($img, 0, 0, 255);
// draw the head
imagearc($img, 100, 100, 200, 200, 0, 360, $white);
// mouth
imagearc($img, 100, 100, 150, 150, 25, 155, $red);
// left and then the right eye
imagearc($img, 60, 75, 50, 50, 0, 360, $green);
imagearc($img, 140, 75, 50, 50, 0, 360, $blue);
// output image in the browser
header("Content-type: image/png");
imagepng($img);
// free memory
imagedestroy($img);
?>
The above example will output something similar to:
See Also
- imagefilledarc() - Draw a partial arc and fill it
- imageellipse() - Draw an ellipse
- imagefilledellipse() - Draw a filled ellipse