echarts
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Apache ECharts is a powerful, interactive charting and data visualization library for browser
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JavaScript
/*
* 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 { parseConditionalExpression } from '../../util/conditionalExpression.js';
import { hasOwn, createHashMap } from 'zrender/lib/core/util.js';
import { makePrintable, throwError } from '../../util/log.js';
export var filterTransform = {
type: 'echarts:filter',
// PENDING: enhance to filter by index rather than create new data
transform: function (params) {
// [Caveat] Fail-Fast:
// Do not return the whole dataset unless user config indicates it explicitly.
// For example, if no condition is specified by mistake, returning an empty result
// is better than returning the entire raw source for the user to find the mistake.
var upstream = params.upstream;
var rawItem;
var condition = parseConditionalExpression(params.config, {
valueGetterAttrMap: createHashMap({
dimension: true
}),
prepareGetValue: function (exprOption) {
var errMsg = '';
var dimLoose = exprOption.dimension;
if (!hasOwn(exprOption, 'dimension')) {
if (process.env.NODE_ENV !== 'production') {
errMsg = makePrintable('Relation condition must has prop "dimension" specified.', 'Illegal condition:', exprOption);
}
throwError(errMsg);
}
var dimInfo = upstream.getDimensionInfo(dimLoose);
if (!dimInfo) {
if (process.env.NODE_ENV !== 'production') {
errMsg = makePrintable('Can not find dimension info via: ' + dimLoose + '.\n', 'Existing dimensions: ', upstream.cloneAllDimensionInfo(), '.\n', 'Illegal condition:', exprOption, '.\n');
}
throwError(errMsg);
}
return {
dimIdx: dimInfo.index
};
},
getValue: function (param) {
return upstream.retrieveValueFromItem(rawItem, param.dimIdx);
}
});
var resultData = [];
for (var i = 0, len = upstream.count(); i < len; i++) {
rawItem = upstream.getRawDataItem(i);
if (condition.evaluate()) {
resultData.push(rawItem);
}
}
return {
data: resultData
};
}
};