Php/docs/imagickdraw.setgravity
ImagickDraw::setGravity
(PECL imagick 2, PECL imagick 3)
ImagickDraw::setGravity — Sets the text placement gravity
说明
public ImagickDraw::setGravity
( int $gravity
) : bool
Warning 本函数还未编写文档，仅有参数列表。
Sets the text placement gravity to use when annotating with text.
参数
gravity- GRAVITY_ constant
返回值
没有返回值。
范例
Example #1 ImagickDraw::setGravity()
<?phpfunction setGravity($fillColor, $strokeColor, $backgroundColor) { $draw = new \ImagickDraw(); $draw->setStrokeColor($strokeColor); $draw->setFillColor($fillColor); $draw->setStrokeWidth(1); $draw->setFontSize(24); $gravitySettings = array( \Imagick::GRAVITY_NORTHWEST => 'NorthWest', \Imagick::GRAVITY_NORTH => 'North', \Imagick::GRAVITY_NORTHEAST => 'NorthEast', \Imagick::GRAVITY_WEST => 'West', \Imagick::GRAVITY_CENTER => 'Centre', \Imagick::GRAVITY_SOUTHWEST => 'SouthWest', \Imagick::GRAVITY_SOUTH => 'South', \Imagick::GRAVITY_SOUTHEAST => 'SouthEast', \Imagick::GRAVITY_EAST => 'East' ); $draw->setFont("../fonts/Arial.ttf"); foreach ($gravitySettings as $type => $description) { $draw->setGravity($type); $draw->annotation(50, 50, '"' . $description . '"'); } $imagick = new \Imagick(); $imagick->newImage(500, 500, $backgroundColor); $imagick->setImageFormat("png"); $imagick->drawImage($draw); header("Content-Type: image/png"); echo $imagick->getImageBlob();}?>
