/** * @class Ext.chart.series.Scatter * @extends Ext.chart.series.Cartesian * * Creates a Scatter Chart. The scatter plot is useful when trying to display more than two variables in the same visualization. * These variables can be mapped into x, y coordinates and also to an element's radius/size, color, etc. * As with all other series, the Scatter Series must be appended in the *series* Chart array configuration. See the Chart * documentation for more information on creating charts. A typical configuration object for the scatter could be: * * @example * Ext.create({ * xtype: 'cartesian', * renderTo: document.body, * width: 600, * height: 400, * insetPadding: 40, * interactions: ['itemhighlight'], * store: { * fields: ['name', 'data1', 'data2'], * data: [{ * 'name': 'metric one', * 'data1': 10, * 'data2': 14 * }, { * 'name': 'metric two', * 'data1': 7, * 'data2': 16 * }, { * 'name': 'metric three', * 'data1': 5, * 'data2': 14 * }, { * 'name': 'metric four', * 'data1': 2, * 'data2': 6 * }, { * 'name': 'metric five', * 'data1': 27, * 'data2': 36 * }] * }, * axes: [{ * type: 'numeric', * position: 'left', * fields: ['data1'], * title: { * text: 'Sample Values', * fontSize: 15 * }, * grid: true, * minimum: 0 * }, { * type: 'category', * position: 'bottom', * fields: ['name'], * title: { * text: 'Sample Values', * fontSize: 15 * } * }], * series: { * type: 'scatter', * highlight: { * size: 12, * radius: 12, * fill: '#96D4C6', * stroke: '#30BDA7' * }, * fill: true, * xField: 'name', * yField: 'data2', * marker: { * type: 'circle', * fill: '#30BDA7', * radius: 10, * lineWidth: 0 * } * } * }); * * In this configuration we add three different categories of scatter series. Each of them is bound to a different field of the same data store, * `data1`, `data2` and `data3` respectively. All x-fields for the series must be the same field, in this case `name`. * Each scatter series has a different styling configuration for markers, specified by the `marker` object. Finally we set the left axis as * axis to show the current values of the elements. * */Ext.define('Ext.chart.series.Scatter', { extend: 'Ext.chart.series.Cartesian', alias: 'series.scatter', type: 'scatter', seriesType: 'scatterSeries', requires: [ 'Ext.chart.series.sprite.Scatter' ], config: { itemInstancing: null }, themeMarkerCount: function() { return 1; }, provideLegendInfo: function (target) { var me = this, style = me.getMarkerStyleByIndex(0), fill = style.fillStyle; target.push({ name: me.getTitle() || me.getYField() || me.getId(), mark: (Ext.isObject(fill) ? fill.stops && fill.stops[0].color : fill) || style.strokeStyle || 'black', disabled: me.getHidden(), series: me.getId(), index: 0 }); }});