(PHP 7 >= 7.2.0)
imageopenpolygon — Draws an open polygon
$image
, array $points
, int $num_points
, int $color
)
imageopenpolygon() draws an open polygon on the given
image
. Contrary to imagepolygon(),
no line is drawn between the last and the first point.
image
imagecreatetruecolor() 등의 이미지 생성 함수에서 반환한 이미지 자원.
points
An array containing the polygon's vertices, e.g.:
points[0] | = x0 |
points[1] | = y0 |
points[2] | = x1 |
points[3] | = y1 |
num_points
Total number of points (vertices).
color
A color identifier created with imagecolorallocate().
성공 시 TRUE
를, 실패 시 FALSE
를 반환합니다.
Example #1 imageopenpolygon() example
<?php
// Create a blank image
$image = imagecreatetruecolor(400, 300);
// Allocate a color for the polygon
$col_poly = imagecolorallocate($image, 255, 255, 255);
// Draw the polygon
imageopenpolygon($image, array(
0, 0,
100, 200,
300, 200
),
3,
$col_poly);
// Output the picture to the browser
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?>
위 예제의 출력 예시: