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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| 
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| var _util = require("zrender/lib/core/util");
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| 
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| var each = _util.each;
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| 
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| var parseGeoJson = require("./parseGeoJson");
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| 
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| var _model = require("../../util/model");
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| 
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| var makeInner = _model.makeInner;
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| 
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| var fixNanhai = require("./fix/nanhai");
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| 
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| var fixTextCoord = require("./fix/textCoord");
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| 
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| var fixGeoCoord = require("./fix/geoCoord");
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| 
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| var fixDiaoyuIsland = require("./fix/diaoyuIsland");
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| 
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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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| 
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|     if (parsed) {
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|       return parsed;
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|     }
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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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| 
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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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| 
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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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| 
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|       var specialArea = specialAreas[regionName];
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| 
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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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| 
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| function getBoundingRect(regions) {
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|   var rect;
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| 
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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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| 
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|   return rect;
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| }
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| 
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| module.exports = _default; | 
