public function getEscapeSequencesByPath ( $dx = null, $dy = null ) {
        if ( is_null($dx) === true ) {
            $dx = $this->_currentPosition[0] - $this->_ancorPosition[0];
        }
        if ( is_null($dy) === true ) {
            $dy = $this->_currentPosition[1] - $this->_ancorPosition[1];
        }
        return self::getMovingEscapeSequences($dx, $dy);
    }
public function getEscapeSequencesByPath ( $dx = null, $dy = null ) {
        if ( is_null($dx) === true ) {
            $dx = $this->_currentPosition[0] - $this->_ancorPosition[0];
        }
        if ( is_null($dy) === true ) {
            $dy = $this->_currentPosition[1] - $this->_ancorPosition[1];
        }
        return self::getMovingEscapeSequences($dx, $dy);
    }
public function getEscapeSequencesByPath ( $ dx = null , $ dy = null ) { if ( is_null ( $ dx ) === true ) { $ dx = $ this -> _currentPosition [ 0 ] - $ this -> _ancorPosition [ 0 ] ; } if ( is_null ( $ dy ) === true ) { $ dy = $ this -> _currentPosition [ 1 ] - $ this -> _ancorPosition [ 1 ] ; } return self :: getMovingEscapeSequences ( $ dx , $ dy ) ; }
Get escape sequences by path

@param int $dx Horizontal displacement
@param int $dy Vertical displacement
@return string Escape sequences
Get escape sequences by path