imagearc

Description

int imagearc ( resource image, int cx, int cy, int w, int h, int s, int e, int color )

imagearc() draws a partial ellipse centered at cx, cy (top left is 0, 0) in the image represented by image. W and h specifies the ellipse's width and height respectively while the start and end points are specified in degrees indicated by the s and e arguments. 0° is located at the three-o'clock position, and the arc is drawn clockwise.

Пример 1. Drawing a circle with imagearc() <?php // create a 200*200 image $img = imagecreate ( 200 , 200 ); // allocate some colors $white = imagecolorallocate ( $img , 255 , 255 , 255 ); $black = imagecolorallocate ( $img , 0 , 0 , 0 );     // draw a black circle imagearc ( $img , 100 , 100 , 150 , 150 , 0 , 360 , $black ); // output image in the browser header ( "Content-type: image/png" ); imagepng ( $img );     // free memory imagedestroy ( $img ); ?>

Смотрите также imageellipse(), imagefilledellipse(), and imagefilledarc().