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frontend/node_modules/echarts/lib/data/OrdinalMeta.js

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+
+/*
+* 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 { createHashMap, isObject, map, isString } from 'zrender/lib/core/util.js';
+var uidBase = 0;
+var OrdinalMeta = /** @class */function () {
+  function OrdinalMeta(opt) {
+    this.categories = opt.categories || [];
+    this._needCollect = opt.needCollect;
+    this._deduplication = opt.deduplication;
+    this.uid = ++uidBase;
+  }
+  OrdinalMeta.createByAxisModel = function (axisModel) {
+    var option = axisModel.option;
+    var data = option.data;
+    var categories = data && map(data, getName);
+    return new OrdinalMeta({
+      categories: categories,
+      needCollect: !categories,
+      // deduplication is default in axis.
+      deduplication: option.dedplication !== false
+    });
+  };
+  ;
+  OrdinalMeta.prototype.getOrdinal = function (category) {
+    // @ts-ignore
+    return this._getOrCreateMap().get(category);
+  };
+  /**
+   * @return The ordinal. If not found, return NaN.
+   */
+  OrdinalMeta.prototype.parseAndCollect = function (category) {
+    var index;
+    var needCollect = this._needCollect;
+    // The value of category dim can be the index of the given category set.
+    // This feature is only supported when !needCollect, because we should
+    // consider a common case: a value is 2017, which is a number but is
+    // expected to be tread as a category. This case usually happen in dataset,
+    // where it happent to be no need of the index feature.
+    if (!isString(category) && !needCollect) {
+      return category;
+    }
+    // Optimize for the scenario:
+    // category is ['2012-01-01', '2012-01-02', ...], where the input
+    // data has been ensured not duplicate and is large data.
+    // Notice, if a dataset dimension provide categroies, usually echarts
+    // should remove duplication except user tell echarts dont do that
+    // (set axis.deduplication = false), because echarts do not know whether
+    // the values in the category dimension has duplication (consider the
+    // parallel-aqi example)
+    if (needCollect && !this._deduplication) {
+      index = this.categories.length;
+      this.categories[index] = category;
+      return index;
+    }
+    var map = this._getOrCreateMap();
+    // @ts-ignore
+    index = map.get(category);
+    if (index == null) {
+      if (needCollect) {
+        index = this.categories.length;
+        this.categories[index] = category;
+        // @ts-ignore
+        map.set(category, index);
+      } else {
+        index = NaN;
+      }
+    }
+    return index;
+  };
+  // Consider big data, do not create map until needed.
+  OrdinalMeta.prototype._getOrCreateMap = function () {
+    return this._map || (this._map = createHashMap(this.categories));
+  };
+  return OrdinalMeta;
+}();
+function getName(obj) {
+  if (isObject(obj) && obj.value != null) {
+    return obj.value;
+  } else {
+    return obj + '';
+  }
+}
+export default OrdinalMeta;