update 处理对webmap crs 的3857 4326 投影兼容判断

Author: xilanhuaweidapao

src/mapboxgl/mapping/webmap/CRSManager.js

@@ -1,13 +1,21 @@
 import mapboxgl from 'mapbox-gl';
 
+const equivalenceMap = {
+  'EPSG:4490': 'EPSG:4326',
+  'EPSG:4326': 'EPSG:4490',
+  'EPSG:3857': 'EPSG:900913',
+  'EPSG:900913': 'EPSG:3857'
+};
 export class CRSManager {
   constructor(proj4) {
     this.proj4 = proj4;
     this.builtInEPSG = ['EPSG:3857', 'EPSG:4326'];
   }
 
   isSameProjection(map, epsgCode) {
-    return map.getCRS().epsgCode === epsgCode;
+    const mapEpsgCode = map.getCRS().epsgCode;
+    return mapEpsgCode === epsgCode || 
+          (equivalenceMap[mapEpsgCode] === epsgCode && equivalenceMap[epsgCode] === mapEpsgCode);
   }
 
   getProj4() {

test/mapboxgl/mapping/WebMapV3Spec.js

@@ -318,6 +318,8 @@ describe('mapboxgl-webmap3.0', () => {
     existedMap.on('load', function () {
       mapstudioWebmap.initializeMap(nextMapInfo, existedMap);
     });
+    const isSameCrs = extendOptions.crsManager.isSameProjection(existedMap, 'EPSG:4326');
+    expect(isSameCrs).toBe(true);
     mapstudioWebmap.on('mapcreatesucceeded', ({ map }) => {
       expect(mapstudioWebmap._appendLayers).toBe(true);
       expect(map).toEqual(existedMap);