(PECL haru >= 0.0.1)
HaruPage::setLineJoin — Set line join style for the page
$join
   )Defines line join style for the page.
joinMust be one of the following values:
HaruPage::MITER_JOIN
        HaruPage::ROUND_JOIN
        HaruPage::BEVEL_JOIN
        
   Returns TRUE on success.
  
Throws a HaruException on error.