guanlan-src/app_frontEnd/web/node_modules/echarts/lib/chart/map/mapSymbolLayout.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.
*/


/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/*
* 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.
*/
import { buildAllMapSeriesGroups, getMainMapSeries, mapSeriesGroupHasOwnGeo, SERIES_TYPE_MAP } from './MapSeries.js';
import { createSimpleOverallStageHandler } from '../../util/model.js';
import { each } from 'zrender/lib/core/util.js';
export var mapSymbolLayoutStageHandler = createSimpleOverallStageHandler(SERIES_TYPE_MAP, mapSymbolLayout);
function mapSymbolLayout(ecModel) {
  each(buildAllMapSeriesGroups(ecModel), function (mapSeriesGroup, groupKey) {
    if (!getMainMapSeries(mapSeriesGroup) || !mapSeriesGroupHasOwnGeo(groupKey)) {
      // map series on separate geo components only provide "choropleth map", but symbols are ignored.
      return;
    }
    var mapSymbolOffsets = {};
    each(mapSeriesGroup.f, function (subMapSeries) {
      var geo = subMapSeries.coordinateSystem;
      var data = subMapSeries.originalData;
      if (subMapSeries.get('showLegendSymbol') && ecModel.getComponent('legend')) {
        data.each(data.mapDimension('value'), function (value, idx) {
          var name = data.getName(idx);
          var region = geo.getRegion(name);
          // If input series.data is [11, 22, '-'/null/undefined, 44],
          // it will be filled with NaN: [11, 22, NaN, 44] and NaN will
          // not be drawn. So here must validate if value is NaN.
          if (!region || isNaN(value)) {
            return;
          }
          var offset = mapSymbolOffsets[name] || 0;
          var point = geo.dataToPoint(region.getCenter());
          mapSymbolOffsets[name] = offset + 1;
          data.setItemLayout(idx, {
            point: point,
            offset: offset
          });
        });
      }
    });
    // Show label of those region not has legendIcon (which is offset 0)
    var data = getMainMapSeries(mapSeriesGroup).getData();
    data.each(function (idx) {
      var name = data.getName(idx);
      var layout = data.getItemLayout(idx) || {};
      layout.showLabel = !mapSymbolOffsets[name];
      data.setItemLayout(idx, layout);
    });
  });
}