note 38800 added to function.imagefilledarc
| From: | caist-www dot caist dot com at rn2 dot php dot net | Date: | Wed, 07 Jan 2004 13:11:07 +0000 |
| Subject: | note 38800 added to function.imagefilledarc | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-63067@lists.php.net to get a copy of this message | ||
if you want to place a text onto the edge of a circle you need to
get a point on the circle:
$pos_x=$radius*sin(deg2rad($angle));
$pos_y=sqrt($radius*$radius-$pos_x*$pos_x);
if you want the point to be in the middle of a pie piece
you need a starting and ending angle
$pos_x=$radius*sin(deg2rad($angle_end-($angle_start)/2));
$pos_y=sqrt($radius*$radius-$pos_x*$pos_x);
hope it helps
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