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 /**
 * Provides functionality for creating a area series.
 *
 * @module charts
 * @submodule series-area
 */
 /**
 * The AreaSeries class renders quantitative data on a graph by creating a fill between 0
 * and the relevant data points.
 *
 * @class AreaSeries
 * @extends CartesianSeries
 * @uses Fills
 * @constructor
 * @param {Object} config (optional) Configuration parameters.
 * @submodule series-area
 */
 Y.AreaSeries = Y.Base.create("areaSeries", Y.CartesianSeries, [Y.Fills], {
 /**
 * @protected
 *
 * Renders the series.
 *
 * @method drawSeries
 */
 drawSeries: function()
 {
 this.drawFill.apply(this, this._getClosingPoints());
 },
 
 /**
 * @protected
 *
 * Method used by `styles` setter. Overrides base implementation.
 *
 * @method _setStyles
 * @param {Object} newStyles Hash of properties to update.
 * @return Object
 */
 _setStyles: function(val)
 {
 if(!val.area)
 {
 val = {area:val};
 }
 return Y.AreaSeries.superclass._setStyles.apply(this, [val]);
 },
 
 /**
 * @protected
 *
 * Gets the default value for the `styles` attribute. Overrides
 * base implementation.
 *
 * @method _getDefaultStyles
 * @return Object
 */
 _getDefaultStyles: function()
 {
 var styles = this._mergeStyles({area:this._getAreaDefaults()}, Y.AreaSeries.superclass._getDefaultStyles());
 return styles;
 }
 },
 {
 ATTRS: {
 /**
 * Read-only attribute indicating the type of series.
 *
 * @attribute type
 * @type String
 * @default area
 */
 type: {
 value:"area"
 }
 
 /**
 * Style properties used for drawing area fills. This attribute is inherited from `Renderer`. Below are the default values:
 *
 * <dl>
 * <dt>color</dt><dd>The color of the fill. The default value is determined by the order of the series on the graph. The color will be
 * retrieved from the following array:
 * `["#66007f", "#a86f41", "#295454", "#996ab2", "#e8cdb7", "#90bdbd","#000000","#c3b8ca", "#968373", "#678585"]`
 * </dd>
 * <dt>alpha</dt><dd>Number between 0 and 1 that indicates the opacity of the fill. The default value is 1</dd>
 * </dl>
 *
 * @attribute styles
 * @type Object
 */
 }
 });