public function setTranslate($xT, $yT)
    {
        // Matrix for Translate
        $tm[0]=1;
        $tm[1]=0;
        $tm[2]=0;
        $tm[3]=1;
        $tm[4]=$xT*$this->k;
        $tm[5]=-$yT*$this->k;

        // apply the Transform Matric
        $this->_out(sprintf('%.3F %.3F %.3F %.3F %.3F %.3F cm', $tm[0], $tm[1], $tm[2], $tm[3], $tm[4], $tm[5]));
    }