update : 2015.11.03
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imagearc
(PHP 4, PHP 5, PHP 7)
imagearc — Draws an arc
설명
bool imagearc
( resource
$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.
인수
-
image -
imagecreatetruecolor() 등의 이미지 생성 함수에서 반환한 이미지 자원.
-
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().
반환값
성공 시 TRUE를, 실패 시 FALSE를 반환합니다.
예제
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);
?>
위 예제의 출력 예시:
참고
- imagefilledarc() - Draw a partial arc and fill it
- imageellipse() - Draw an ellipse
- imagefilledellipse() - Draw a filled ellipse