/*
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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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import {each} from 'zrender/src/core/util';
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import parseGeoJson from './parseGeoJson';
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import {makeInner} from '../../util/model';
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// Built-in GEO fixer.
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import fixNanhai from './fix/nanhai';
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import fixTextCoord from './fix/textCoord';
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import fixGeoCoord from './fix/geoCoord';
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import fixDiaoyuIsland from './fix/diaoyuIsland';
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var inner = makeInner();
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export 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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* @return {Object} {regions, boundingRect}
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*/
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load: function (mapName, mapRecord) {
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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;
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// https://jsperf.com/try-catch-performance-overhead
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try {
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regions = geoJSON ? parseGeoJson(geoJSON) : [];
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}
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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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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);
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// 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(
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specialArea.left, specialArea.top, specialArea.width, specialArea.height
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);
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}
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});
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fixNanhai(mapName, regions);
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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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