前端基于vue框架，引用proj4自定义坐标系4490，报错： No projection definition for code EPSG:4490
import proj4 from "proj4"
proj4.defs("EPSG:4490", "+proj=longlat +ellps=GRS80 +no_defs");
var crs = new L.Proj.CRS("EPSG:4490", {
origin: wmtsinfo.origin,
resolutions: wmtsinfo.res
})
如果前端基于jquery，同样加载不会报错
proj4.defs("EPSG:4490", "+proj=longlat +ellps=GRS80 +no_defs");
var crs4490 = new L.Proj.CRS('EPSG:4490', {
scales: scales4490,
origin: [110.8,20.77]
})
