src/Pdf.php
public function circle($x, $y, $r, $style = 'D')
    {
        $this->Ellipse($x, $y, $r, $r, $style);
    }
public function circle($x, $y, $r, $style = 'D')
    {
        $this->Ellipse($x, $y, $r, $r, $style);
    }
public function circle ( $ x , $ y , $ r , $ style = 'D' ) { $ this -> Ellipse ( $ x , $ y , $ r , $ r , $ style ) ; }
create a circle.

@param int    $x
@param int    $y
@param int    $r
@param string $style
create a circle .