protected function drawBorderBottom($isCore = false)
	{
		$this->geometry->decreaseNesting();

		$crossroads = $isCore ? static::CROSSROADS_DOWN : static::CROSSROADS;

		$this->drawBorder(static::BORDER_SW, $crossroads, static::BORDER_SE);
	}
protected function drawBorderBottom($isCore = false)
	{
		$this->geometry->decreaseNesting();

		$crossroads = $isCore ? static::CROSSROADS_DOWN : static::CROSSROADS;

		$this->drawBorder(static::BORDER_SW, $crossroads, static::BORDER_SE);
	}
protected function drawBorderBottom ( $ isCore = false ) { $ this -> geometry -> decreaseNesting ( ) ; $ crossroads = $ isCore ? static :: CROSSROADS_DOWN : static :: CROSSROADS ; $ this -> drawBorder ( static :: BORDER_SW , $ crossroads , static :: BORDER_SE ) ; }
Draw the bottom border.

@author	Andrea Marco Sartori
@param	boolean	$isCore
@return	void
Draw the bottom border .