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node_modules/echarts/lib/coord/geo/GeoJSONResource.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 { each, isString, createHashMap, hasOwn } from 'zrender/lib/core/util.js';
+import parseGeoJson from './parseGeoJson.js';
+// Built-in GEO fixer.
+import fixNanhai from './fix/nanhai.js';
+import fixTextCoord from './fix/textCoord.js';
+import fixDiaoyuIsland from './fix/diaoyuIsland.js';
+import BoundingRect from 'zrender/lib/core/BoundingRect.js';
+var DEFAULT_NAME_PROPERTY = 'name';
+var GeoJSONResource = /** @class */function () {
+  function GeoJSONResource(mapName, geoJSON, specialAreas) {
+    this.type = 'geoJSON';
+    this._parsedMap = createHashMap();
+    this._mapName = mapName;
+    this._specialAreas = specialAreas;
+    // PENDING: delay the parse to the first usage to rapid up the FMP?
+    this._geoJSON = parseInput(geoJSON);
+  }
+  /**
+   * @param nameMap can be null/undefined
+   * @param nameProperty can be null/undefined
+   */
+  GeoJSONResource.prototype.load = function (nameMap, nameProperty) {
+    nameProperty = nameProperty || DEFAULT_NAME_PROPERTY;
+    var parsed = this._parsedMap.get(nameProperty);
+    if (!parsed) {
+      var rawRegions = this._parseToRegions(nameProperty);
+      parsed = this._parsedMap.set(nameProperty, {
+        regions: rawRegions,
+        boundingRect: calculateBoundingRect(rawRegions)
+      });
+    }
+    var regionsMap = createHashMap();
+    var finalRegions = [];
+    each(parsed.regions, function (region) {
+      var regionName = region.name;
+      // Try use the alias in geoNameMap
+      if (nameMap && hasOwn(nameMap, regionName)) {
+        region = region.cloneShallow(regionName = nameMap[regionName]);
+      }
+      finalRegions.push(region);
+      regionsMap.set(regionName, region);
+    });
+    return {
+      regions: finalRegions,
+      boundingRect: parsed.boundingRect || new BoundingRect(0, 0, 0, 0),
+      regionsMap: regionsMap
+    };
+  };
+  GeoJSONResource.prototype._parseToRegions = function (nameProperty) {
+    var mapName = this._mapName;
+    var geoJSON = this._geoJSON;
+    var rawRegions;
+    // https://jsperf.com/try-catch-performance-overhead
+    try {
+      rawRegions = geoJSON ? parseGeoJson(geoJSON, nameProperty) : [];
+    } catch (e) {
+      throw new Error('Invalid geoJson format\n' + e.message);
+    }
+    fixNanhai(mapName, rawRegions);
+    each(rawRegions, function (region) {
+      var regionName = region.name;
+      fixTextCoord(mapName, region);
+      fixDiaoyuIsland(mapName, region);
+      // Some area like Alaska in USA map needs to be tansformed
+      // to look better
+      var specialArea = this._specialAreas && this._specialAreas[regionName];
+      if (specialArea) {
+        region.transformTo(specialArea.left, specialArea.top, specialArea.width, specialArea.height);
+      }
+    }, this);
+    return rawRegions;
+  };
+  /**
+   * Only for exporting to users.
+   * **MUST NOT** used internally.
+   */
+  GeoJSONResource.prototype.getMapForUser = function () {
+    return {
+      // For backward compatibility, use geoJson
+      // PENDING: it has been returning them without clone.
+      // do we need to avoid outsite modification?
+      geoJson: this._geoJSON,
+      geoJSON: this._geoJSON,
+      specialAreas: this._specialAreas
+    };
+  };
+  return GeoJSONResource;
+}();
+export { GeoJSONResource };
+function calculateBoundingRect(regions) {
+  var rect;
+  for (var i = 0; i < regions.length; i++) {
+    var regionRect = regions[i].getBoundingRect();
+    rect = rect || regionRect.clone();
+    rect.union(regionRect);
+  }
+  return rect;
+}
+function parseInput(source) {
+  return !isString(source) ? source : typeof JSON !== 'undefined' && JSON.parse ? JSON.parse(source) : new Function('return (' + source + ');')();
+}