echarts legendFilter 源码
echarts legendFilter 代码
文件路径：/src/component/legend/legendFilter.ts
import SeriesModel from '../../model/Series';
import GlobalModel from '../../model/Global';
import LegendModel from './LegendModel';
/*
* 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.
*/
export default function legendFilter(ecModel: GlobalModel) {
const legendModels = ecModel.findComponents({
mainType: 'legend'
}) as LegendModel[];
if (legendModels && legendModels.length) {
ecModel.filterSeries(function (series: SeriesModel) {
// If in any legend component the status is not selected.
// Because in legend series is assumed selected when it is not in the legend data.
for (let i = 0; i < legendModels.length; i++) {
if (!legendModels[i].isSelected(series.name)) {
return false;
}
}
return true;
});
}
}
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