PieSeries.js

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/

var echarts = require("../../echarts");

var createListSimply = require("../helper/createListSimply");

var zrUtil = require("zrender/lib/core/util");

var modelUtil = require("../../util/model");

var _number = require("../../util/number");

var getPercentWithPrecision = _number.getPercentWithPrecision;

var dataSelectableMixin = require("../../component/helper/selectableMixin");

var _dataProvider = require("../../data/helper/dataProvider");

var retrieveRawAttr = _dataProvider.retrieveRawAttr;

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var PieSeries = echarts.extendSeriesModel({
  type: 'series.pie',
  // Overwrite
  init: function (option) {
    PieSeries.superApply(this, 'init', arguments); // Enable legend selection for each data item
    // Use a function instead of direct access because data reference may changed

    this.legendDataProvider = function () {
      return this.getRawData();
    };

    this.updateSelectedMap(this._createSelectableList());

    this._defaultLabelLine(option);
  },
  // Overwrite
  mergeOption: function (newOption) {
    PieSeries.superCall(this, 'mergeOption', newOption);
    this.updateSelectedMap(this._createSelectableList());
  },
  getInitialData: function (option, ecModel) {
    return createListSimply(this, ['value']);
  },
  _createSelectableList: function () {
    var data = this.getRawData();
    var valueDim = data.mapDimension('value');
    var targetList = [];

    for (var i = 0, len = data.count(); i < len; i++) {
      targetList.push({
        name: data.getName(i),
        value: data.get(valueDim, i),
        selected: retrieveRawAttr(data, i, 'selected')
      });
    }

    return targetList;
  },
  // Overwrite
  getDataParams: function (dataIndex) {
    var data = this.getData();
    var params = PieSeries.superCall(this, 'getDataParams', dataIndex); // FIXME toFixed?

    var valueList = [];
    data.each(data.mapDimension('value'), function (value) {
      valueList.push(value);
    });
    params.percent = getPercentWithPrecision(valueList, dataIndex, data.hostModel.get('percentPrecision'));
    params.$vars.push('percent');
    return params;
  },
  _defaultLabelLine: function (option) {
    // Extend labelLine emphasis
    modelUtil.defaultEmphasis(option, 'labelLine', ['show']);
    var labelLineNormalOpt = option.labelLine;
    var labelLineEmphasisOpt = option.emphasis.labelLine; // Not show label line if `label.normal.show = false`

    labelLineNormalOpt.show = labelLineNormalOpt.show && option.label.show;
    labelLineEmphasisOpt.show = labelLineEmphasisOpt.show && option.emphasis.label.show;
  },
  defaultOption: {
    zlevel: 0,
    z: 2,
    legendHoverLink: true,
    hoverAnimation: true,
    // 默认全局居中
    center: ['50%', '50%'],
    radius: [0, '75%'],
    // 默认顺时针
    clockwise: true,
    startAngle: 90,
    // 最小角度改为0
    minAngle: 0,
    // 选中时扇区偏移量
    selectedOffset: 10,
    // 高亮扇区偏移量
    hoverOffset: 10,
    // If use strategy to avoid label overlapping
    avoidLabelOverlap: true,
    // 选择模式，默认关闭，可选single，multiple
    // selectedMode: false,
    // 南丁格尔玫瑰图模式，'radius'（半径） | 'area'（面积）
    // roseType: null,
    percentPrecision: 2,
    // If still show when all data zero.
    stillShowZeroSum: true,
    // cursor: null,
    label: {
      // If rotate around circle
      rotate: false,
      show: true,
      // 'outer', 'inside', 'center'
      position: 'outer' // formatter: 标签文本格式器，同Tooltip.formatter，不支持异步回调
      // 默认使用全局文本样式，详见TEXTSTYLE
      // distance: 当position为inner时有效，为label位置到圆心的距离与圆半径(环状图为内外半径和)的比例系数

    },
    // Enabled when label.normal.position is 'outer'
    labelLine: {
      show: true,
      // 引导线两段中的第一段长度
      length: 15,
      // 引导线两段中的第二段长度
      length2: 15,
      smooth: false,
      lineStyle: {
        // color: 各异,
        width: 1,
        type: 'solid'
      }
    },
    itemStyle: {
      borderWidth: 1
    },
    // Animation type canbe expansion, scale
    animationType: 'expansion',
    animationEasing: 'cubicOut'
  }
});
zrUtil.mixin(PieSeries, dataSelectableMixin);
var _default = PieSeries;
module.exports = _default;