note 118677 added to function.imagettfbbox

a little something to replace in blackbart tip : // start scanning (0=> black => empty) $rleft = $w4 = $width<<2; $rright = 0; $rbottom = 0; $rtop = $h4 = $height<<2; for( $x = 0; $x < $w4; $x++ ) for( $y = 0; $y < $h4; $y++ ) if( imagecolorat( $img, $x, $y ) ){ $rleft = min( $rleft, $x ); $rright = max( $rright, $x ); $rtop = min( $rtop, $y ); $rbottom = max( $rbottom, $y ); } with // start scanning (0=> black => empty) $break = false; $rleft = $w4 = $width<<2; $rright = 0; $rbottom = 0; $rtop = $h4 = $height<<2; // scanning from left to right, breaking when a pixel is found, to scan from the other side : avoid scanning all pixels ! for($x=0; $x<$w4; $x++){ for($y=0; $y<$h4; $y++) if(imagecolorat($img,$x,$y)){ $rtop = min($rtop, $y); $rleft = min($rleft, $x); $break = true; break; } if($break) break; } // scanning from right to left, breaking when a pixel is found for($x=($w4-1); $x>$rleft; $x--){ for($y=0; $y<$h4; $y++) if(imagecolorat($img,$x,$y)){ $rright = max($rright, $x); $rbottom = max($rbottom, $y); $break = true; break; } if($break) break; } //... // it may be even better to check if the picture is portrait or landscape, to start the loops from left-right(landscape) or top-bottom (portrait) ---- Server IP: 72.52.91.14 Probable Submitter: 82.227.6.122 ---- Manual Page -- http://php.net/manual/en/function.imagettfbbox.php Edit -- https://master.php.net/note/edit/118677 Del: integrated -- https://master.php.net/note/delete/118677/integrated Del: useless -- https://master.php.net/note/delete/118677/useless Del: bad code -- https://master.php.net/note/delete/118677/bad+code Del: spam -- https://master.php.net/note/delete/118677/spam Del: non-english -- https://master.php.net/note/delete/118677/non-english Del: in docs -- https://master.php.net/note/delete/118677/in+docs Del: other reasons-- https://master.php.net/note/delete/118677 Reject -- https://master.php.net/note/reject/118677 Search -- https://master.php.net/manage/user-notes.php