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
EAttribute BLOCK__HEIGHT_HINT = eINSTANCE.getBlock_HeightHint( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.layout.impl.ClientAreaImpl <em>Client Area</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.layout.impl.ClientAreaImpl
		 * @see org.eclipse.birt.chart.model.layout.impl.LayoutPackageImpl#getClientArea()
		 * @generated
		 */
		EClass CLIENT_AREA = eINSTANCE.getClientArea( );
		/**
		 * The meta object literal for the '<em><b>Background</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference CLIENT_AREA__BACKGROUND = eINSTANCE.getClientArea_Background( );
		/**
		 * The meta object literal for the '<em><b>Outline</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference CLIENT_AREA__OUTLINE = eINSTANCE.getClientArea_Outline( );
		/**
		 * The meta object literal for the '<em><b>Shadow Color</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */