PHP imagearc - Videos elliptical arcs
imagearc - used to draw elliptical arcs.
grammar
bool imagearc ( resource $image , int $cx , int $cy , int $w , int $h , int $s , int $e , int $color )
imagearc () to cx, cy (top left is 0, 0) as the center of the image represented in the drawing an elliptical arc.
w and h specifies the ellipse's width and height, the start and end points s and e parameter to specify the angle. 0 ° located at the three o'clock position, clockwise painting.
Examples
<?php $img = imagecreatetruecolor(200, 200);// 创建一个 200*200 图片 $white = imagecolorallocate($img, 255, 255, 255); // 颜色 // 画椭圆弧 imagearc($img, 140, 75, 50, 50, 0, 360, $white); // 浏览器输出图片 header("Content-type: image/png"); imagepng($img); imagedestroy($img); ?>
The above example of the output picture is as follows: