【发布时间】:2021-05-31 19:20:54
【问题描述】:
我正在尝试使用 proj4 转换一些坐标,但出现此错误
Uncaught (in promise) TypeError: lib_namespaceObject is not a function
proj4 是从 typescript 模块内部调用的。 proj4 版本:2.6.3
我的代码:
import * as proj4 from 'proj4'
import * as atlas from 'azure-maps-control';
//...
fetch('...')
.then(response => response.json())
.then((data: atlas.data.FeatureCollection) => {
data.features = data.features.filter(f => f.geometry);
data.features.forEach(f => {
let from = "+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs";
let to = "+title=WGS 84 (long/lat) +proj=longlat +ellps=WGS84 +datum=WGS84 +units=degrees";
f.geometry.coordinates[0] = proj4(from, to, f.geometry.coordinates[0] as any);
f.geometry.coordinates[1] = proj4(from, to, f.geometry.coordinates[1] as any);
});
});
错误出现在行:
f.geometry.coordinates[0] = proj4(from, to, f.geometry.coordinates[0] as any)
【问题讨论】:
标签: typescript proj