echarts geoSourceManager 源码
echarts geoSourceManager 代码
文件路径:/src/coord/geo/geoSourceManager.ts
/*
* 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 { createHashMap } from 'zrender/src/core/util';
import { GeoSVGResource } from './GeoSVGResource';
import {
GeoJSON,
GeoJSONSourceInput,
GeoResource,
GeoSpecialAreas,
NameMap,
GeoSVGSourceInput
} from './geoTypes';
import { GeoJSONResource } from './GeoJSONResource';
type MapInput = GeoJSONMapInput | SVGMapInput;
interface GeoJSONMapInput {
geoJSON: GeoJSONSourceInput;
specialAreas: GeoSpecialAreas;
}
interface GeoJSONMapInputCompat extends GeoJSONMapInput {
geoJson: GeoJSONSourceInput;
}
interface SVGMapInput {
svg: GeoSVGSourceInput;
}
const storage = createHashMap<GeoResource>();
export default {
/**
* Compatible with previous `echarts.registerMap`.
*
* @usage
* ```js
*
* echarts.registerMap('USA', geoJson, specialAreas);
*
* echarts.registerMap('USA', {
* geoJson: geoJson,
* specialAreas: {...}
* });
* echarts.registerMap('USA', {
* geoJSON: geoJson,
* specialAreas: {...}
* });
*
* echarts.registerMap('airport', {
* svg: svg
* }
* ```
*
* Note:
* Do not support that register multiple geoJSON or SVG
* one map name. Because different geoJSON and SVG have
* different unit. It's not easy to make sure how those
* units are mapping/normalize.
* If intending to use multiple geoJSON or SVG, we can
* use multiple geo coordinate system.
*/
registerMap: function (
mapName: string,
rawDef: MapInput | GeoJSONSourceInput,
rawSpecialAreas?: GeoSpecialAreas
): void {
if ((rawDef as SVGMapInput).svg) {
const resource = new GeoSVGResource(
mapName,
(rawDef as SVGMapInput).svg
);
storage.set(mapName, resource);
}
else {
// Recommend:
// echarts.registerMap('eu', { geoJSON: xxx, specialAreas: xxx });
// Backward compatibility:
// echarts.registerMap('eu', geoJSON, specialAreas);
// echarts.registerMap('eu', { geoJson: xxx, specialAreas: xxx });
let geoJSON = (rawDef as GeoJSONMapInputCompat).geoJson
|| (rawDef as GeoJSONMapInput).geoJSON;
if (geoJSON && !(rawDef as GeoJSON).features) {
rawSpecialAreas = (rawDef as GeoJSONMapInput).specialAreas;
}
else {
geoJSON = rawDef as GeoJSONSourceInput;
}
const resource = new GeoJSONResource(
mapName,
geoJSON,
rawSpecialAreas
);
storage.set(mapName, resource);
}
},
getGeoResource(mapName: string): GeoResource {
return storage.get(mapName);
},
/**
* Only for exporting to users.
* **MUST NOT** used internally.
*/
getMapForUser: function (mapName: string): ReturnType<GeoJSONResource['getMapForUser']> {
const resource = storage.get(mapName);
// Do not support return SVG until some real requirement come.
return resource && resource.type === 'geoJSON'
&& (resource as GeoJSONResource).getMapForUser();
},
load: function (mapName: string, nameMap: NameMap, nameProperty: string): ReturnType<GeoResource['load']> {
const resource = storage.get(mapName);
if (!resource) {
if (__DEV__) {
console.error(
'Map ' + mapName + ' not exists. The GeoJSON of the map must be provided.'
);
}
return;
}
return resource.load(nameMap, nameProperty);
}
};
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦