echarts/src/chart/bar/BaseBarSeries.js

A powerful charting and visualization library for browser

define(function(require) {

    'use strict';

    var SeriesModel = require('../../model/Series');
    var createListFromArray = require('../helper/createListFromArray');

    return SeriesModel.extend({

        type: 'series.__base_bar__',

        getInitialData: function (option, ecModel) {
            return createListFromArray(option.data, this, ecModel);
        },

        getMarkerPosition: function (value) {
            var coordSys = this.coordinateSystem;
            if (coordSys) {
                // PENDING if clamp ?
                var pt = coordSys.dataToPoint(value, true);
                var data = this.getData();
                var offset = data.getLayout('offset');
                var size = data.getLayout('size');
                var offsetIndex = coordSys.getBaseAxis().isHorizontal() ? 0 : 1;
                pt[offsetIndex] += offset + size / 2;
                return pt;
            }
            return [NaN, NaN];
        },

        defaultOption: {
            zlevel: 0,                  // 一级层叠
            z: 2,                       // 二级层叠
            coordinateSystem: 'cartesian2d',
            legendHoverLink: true,
            // stack: null

            // Cartesian coordinate system
            // xAxisIndex: 0,
            // yAxisIndex: 0,

            // 最小高度改为0
            barMinHeight: 0,
            // 最小角度为0，仅对极坐标系下的柱状图有效
            barMinAngle: 0,
            // cursor: null,

            // barMaxWidth: null,
            // 默认自适应
            // barWidth: null,
            // 柱间距离，默认为柱形宽度的30%，可设固定值
            // barGap: '30%',
            // 类目间柱形距离，默认为类目间距的20%，可设固定值
            // barCategoryGap: '20%',
            // label: {
            //     normal: {
            //         show: false
            //     }
            // },
            itemStyle: {
                normal: {
                    // color: '各异'
                },
                emphasis: {}
            }
        }
    });
});