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