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parttimejob/node_modules/echarts/lib/coord/geo/GeoJSONResource.js

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1 month ago
/*
* 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 + ');')();
}