116 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			116 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements.  See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership.  The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License.  You may obtain a copy of the License at
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*
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*   http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied.  See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var _util = require("zrender/lib/core/util");
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var each = _util.each;
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var parseGeoJson = require("./parseGeoJson");
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var _model = require("../../util/model");
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var makeInner = _model.makeInner;
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var fixNanhai = require("./fix/nanhai");
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var fixTextCoord = require("./fix/textCoord");
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var fixGeoCoord = require("./fix/geoCoord");
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var fixDiaoyuIsland = require("./fix/diaoyuIsland");
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements.  See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership.  The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License.  You may obtain a copy of the License at
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*
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*   http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied.  See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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// Built-in GEO fixer.
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var inner = makeInner();
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var _default = {
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  /**
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   * @param {string} mapName
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   * @param {Object} mapRecord {specialAreas, geoJSON}
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   * @param {string} nameProperty
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   * @return {Object} {regions, boundingRect}
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   */
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  load: function (mapName, mapRecord, nameProperty) {
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    var parsed = inner(mapRecord).parsed;
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    if (parsed) {
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      return parsed;
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    }
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    var specialAreas = mapRecord.specialAreas || {};
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    var geoJSON = mapRecord.geoJSON;
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    var regions; // https://jsperf.com/try-catch-performance-overhead
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    try {
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      regions = geoJSON ? parseGeoJson(geoJSON, nameProperty) : [];
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    } catch (e) {
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      throw new Error('Invalid geoJson format\n' + e.message);
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    }
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    fixNanhai(mapName, regions);
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    each(regions, function (region) {
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      var regionName = region.name;
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      fixTextCoord(mapName, region);
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      fixGeoCoord(mapName, region);
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      fixDiaoyuIsland(mapName, region); // Some area like Alaska in USA map needs to be tansformed
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      // to look better
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      var specialArea = specialAreas[regionName];
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      if (specialArea) {
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        region.transformTo(specialArea.left, specialArea.top, specialArea.width, specialArea.height);
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      }
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    });
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    return inner(mapRecord).parsed = {
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      regions: regions,
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      boundingRect: getBoundingRect(regions)
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    };
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  }
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};
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function getBoundingRect(regions) {
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  var rect;
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  for (var i = 0; i < regions.length; i++) {
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    var regionRect = regions[i].getBoundingRect();
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    rect = rect || regionRect.clone();
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    rect.union(regionRect);
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  }
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  return rect;
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}
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module.exports = _default; |