en/builder/src/echarts/coord/parallel/parallelPreprocessor.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.
*/
import * as zrUtil from 'zrender/src/core/util';
import * as modelUtil from '../../util/model';
export default function (option) {
  createParallelIfNeeded(option);
  mergeAxisOptionFromParallel(option);
}
/**
 * Create a parallel coordinate if not exists.
 * @inner
 */

function createParallelIfNeeded(option) {
  if (option.parallel) {
    return;
  }

  var hasParallelSeries = false;
  zrUtil.each(option.series, function (seriesOpt) {
    if (seriesOpt && seriesOpt.type === 'parallel') {
      hasParallelSeries = true;
    }
  });

  if (hasParallelSeries) {
    option.parallel = [{}];
  }
}
/**
 * Merge aixs definition from parallel option (if exists) to axis option.
 * @inner
 */


function mergeAxisOptionFromParallel(option) {
  var axes = modelUtil.normalizeToArray(option.parallelAxis);
  zrUtil.each(axes, function (axisOption) {
    if (!zrUtil.isObject(axisOption)) {
      return;
    }

    var parallelIndex = axisOption.parallelIndex || 0;
    var parallelOption = modelUtil.normalizeToArray(option.parallel)[parallelIndex];

    if (parallelOption && parallelOption.parallelAxisDefault) {
      zrUtil.merge(axisOption, parallelOption.parallelAxisDefault, false);
    }
  });
}