1.相关链接

https://github.com/terraformer-js/terraformer

2.arcgis geometry json与geojson互转

Convert ArcGIS JSON geometries to GeoJSON geometries and vice versa.

npm install @terraformer/arcgis

（1）arcgis geometry json转换成geojson格式

import { arcgisToGeoJSON } from "@terraformer/arcgis"arcgisToGeoJSON({"x":-122.6764,"y":45.5165,"spatialReference": {"wkid": 4326}
});>> { "type": "Point", "coordinates": [ -122.6764, 45.5165 ] }

（2）geojson转换成arcgis geometry json

import { geojsonToArcGIS } from "@terraformer/arcgis"geojsonToArcGIS({"type": "Point","coordinates": [45.5165, -122.6764]
})>> { "x":-122.6764, "y":45.5165, "spatialReference": { "wkid": 4326 } }

3.wkt与geojson格式互转

Tools to convert WKT geometries to GeoJSON geometries and vice versa.

(1)wkt转成geojson

import { wktToGeoJSON } from "@terraformer/wkt"wktToGeoJSON("POINT (-122.6764 45.5165)");>> { "type": "Point", "coordinates": [ -122.6764, 45.5165 ] }

(2)geojson转成wkt

import { geojsonToWKT } from "@terraformer/wkt"const geojsonPoint = {"type": "Point","coordinates": [-122.6764, 45.5165]
}geojsonToWKT(geojsonPoint)>> "POINT (-122.6764 45.5165)"