    /**
     * @class Ext.chart.series.Column
     * @extends Ext.chart.series.Bar
     *
     * Creates a Column Chart. Much of the methods are inherited from Bar. A Column Chart is a useful visualization technique to display quantitative information for different
     * categories that can show some progression (or regression) in the data set.
     * As with all other series, the Column Series must be appended in the *series* Chart array configuration. See the Chart
     * documentation for more information. A typical configuration object for the column series could be:
     *
     * {@img Ext.chart.series.Column/Ext.chart.series.Column.png Ext.chart.series.Column chart series
     *
     * ## Example
     *
     *     var store = Ext.create('Ext.data.JsonStore', {
     *         fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
     *         data: [
     *             {'name':'metric one', 'data1':10, 'data2':12, 'data3':14, 'data4':8, 'data5':13},
     *             {'name':'metric two', 'data1':7, 'data2':8, 'data3':16, 'data4':10, 'data5':3},
     *             {'name':'metric three', 'data1':5, 'data2':2, 'data3':14, 'data4':12, 'data5':7},
     *             {'name':'metric four', 'data1':2, 'data2':14, 'data3':6, 'data4':1, 'data5':23},
     *             {'name':'metric five', 'data1':27, 'data2':38, 'data3':36, 'data4':13, 'data5':33}
     *         ]
     *     });
     *
     *     Ext.create('Ext.chart.Chart', {
     *         renderTo: Ext.getBody(),
     *         width: 500,
     *         height: 300,
     *         animate: true,
     *         store: store,
     *         axes: [{
     *             type: 'Numeric',
     *             position: 'bottom',
     *             fields: ['data1'],
     *             label: {
     *                 renderer: Ext.util.Format.numberRenderer('0,0')
     *             },
     *             title: 'Sample Values',
     *             grid: true,
     *             minimum: 0
     *         }, {
     *             type: 'Category',
     *             position: 'left',
     *             fields: ['name'],
     *             title: 'Sample Metrics'
     *         }],
     *             axes: [{
     *                 type: 'Numeric',
     *                 position: 'left',
     *                 fields: ['data1'],
     *                 label: {
     *                     renderer: Ext.util.Format.numberRenderer('0,0')
     *                 },
     *                 title: 'Sample Values',
     *                 grid: true,
     *                 minimum: 0
     *             }, {
     *                 type: 'Category',
     *                 position: 'bottom',
     *                 fields: ['name'],
     *                 title: 'Sample Metrics'
     *             }],
     *             series: [{
     *                 type: 'column',
     *                 axis: 'left',
     *                 highlight: true,
     *                 tips: {
     *                   trackMouse: true,
     *                   width: 140,
     *                   height: 28,
     *                   renderer: function(storeItem, item) {
     *                     this.setTitle(storeItem.get('name') + ': ' + storeItem.get('data1') + ' $');
     *                   }
     *                 },
     *                 label: {
     *                   display: 'insideEnd',
     *                   'text-anchor': 'middle',
     *                     field: 'data1',
     *                     renderer: Ext.util.Format.numberRenderer('0'),
     *                     orientation: 'vertical',
     *                     color: '#333'
     *                 },
     *                 xField: 'name',
     *                 yField: 'data1'
     *             }]
     *     });
     *
     * In this configuration we set `column` as the series type, bind the values of the bars to the bottom axis, set `highlight` to true so that bars are smoothly highlighted
     * when hovered and bind the `xField` or category field to the data store `name` property and the `yField` as the data1 property of a store element.
     */
    Ext.define('Ext.chart.series.Column', {

        /* Begin Definitions */

        alternateClassName: ['Ext.chart.ColumnSeries', 'Ext.chart.ColumnChart', 'Ext.chart.StackedColumnChart'],

        extend: 'Ext.chart.series.Bar',

        /* End Definitions */

        type: 'column',
        alias: 'series.column',

        column: true,

        /**
         * @cfg {Number} xPadding
         * Padding between the left/right axes and the bars
         */
        xPadding: 10,

        /**
         * @cfg {Number} yPadding
         * Padding between the top/bottom axes and the bars
         */
        yPadding: 0
    });