Bug 117149 Add additional datapoint markers
I would like to propose adding additional datapoint markers. Attached is a set of markers I would like supported.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/type/TypePackage.java
* <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int AREA_SERIES__TRANSLUCENT = LINE_SERIES__TRANSLUCENT;
	/**
	 * The feature id for the '<em><b>Curve Fitting</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int AREA_SERIES__CURVE_FITTING = LINE_SERIES__CURVE_FITTING;
	/**
	 * The feature id for the '<em><b>Marker</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int AREA_SERIES__MARKER = LINE_SERIES__MARKER;
	/**
	 * The feature id for the '<em><b>Line Attributes</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int AREA_SERIES__LINE_ATTRIBUTES = LINE_SERIES__LINE_ATTRIBUTES;
	/**