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
EReference CLIENT_AREA__SHADOW_COLOR = eINSTANCE.getClientArea_ShadowColor( );
		/**
		 * The meta object literal for the '<em><b>Insets</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference CLIENT_AREA__INSETS = eINSTANCE.getClientArea_Insets( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.layout.impl.LabelBlockImpl <em>Label Block</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.layout.impl.LabelBlockImpl
		 * @see org.eclipse.birt.chart.model.layout.impl.LayoutPackageImpl#getLabelBlock()
		 * @generated
		 */
		EClass LABEL_BLOCK = eINSTANCE.getLabelBlock( );
		/**
		 * The meta object literal for the '<em><b>Label</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference LABEL_BLOCK__LABEL = eINSTANCE.getLabelBlock_Label( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.layout.impl.LegendImpl <em>Legend</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.layout.impl.LegendImpl
		 * @see org.eclipse.birt.chart.model.layout.impl.LayoutPackageImpl#getLegend()