imagearc
(PHP 4, PHP 5)
imagearc — Draws an arc
Описание
imagearc() draws an arc of circle centered at the given coordinates.
Список параметров
- 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()
Возвращаемые значения
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
Примеры
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);
?>
Результатом выполнения данного примера будет что-то подобное:
