public function draw($workflow)
	{
		$this->geometry->setCore($workflow);

		$this->setPipesOfWorkflow($workflow);

		$this->drawCenteredChar(static::NOCK);

		$this->drawPipesBeginning();

		$this->drawCore();

		$this->drawPipesEnd();

		$this->drawCenteredChar(static::PILE);

		return $this->drawing;
	}