Bug 207268 Add visibility option for plot within axes
For chart with axes, we should make plot within axes invisible. Meantime, other plots, such as axes, legend and title, should be visible. This enhancement doesn't include UI change, and it is required for cross tab integration.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/layout/LayoutPackage.java
*/
	int TITLE_BLOCK__BACKGROUND = LABEL_BLOCK__BACKGROUND;
	/**
	 * The feature id for the '<em><b>Visible</b></em>' attribute. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int TITLE_BLOCK__VISIBLE = LABEL_BLOCK__VISIBLE;
	/**
	 * The feature id for the '<em><b>Triggers</b></em>' containment reference list.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int TITLE_BLOCK__TRIGGERS = LABEL_BLOCK__TRIGGERS;
	/**
	 * The feature id for the '<em><b>Width Hint</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int TITLE_BLOCK__WIDTH_HINT = LABEL_BLOCK__WIDTH_HINT;
	/**
	 * The feature id for the '<em><b>Height Hint</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated