Question

openlayers 客户端加载4490的rest服务报错

Answer 1

您好，具体可参考为地图设置投影：https://iclient.supermap.io/web/introduction/openlayersDevelop.html#multiProjection

加载4490的地图可以参考以下代码：

      var swissProjection = new ol.proj.Projection({
        code: "EPSG:4490",
        extent:[73.45, 18.16, 134.98, 53.53],
        units: "degrees",
      });
      new ol.supermap.MapService(url).getMapInfo(function (serviceResult) {
        const mapObj = serviceResult.result;
        map = new ol.Map({
          target: "map",
          view: new ol.View({
            center: [116.402, 39.905],
            zoom: 0,
            projection:swissProjection ,
            
          }),
        });
        var layer = new ol.layer.Tile({
          source: new ol.source.TileSuperMapRest(
            ol.source.TileSuperMapRest.optionsFromMapJSON(url, mapObj, true)
          ),
        });
        map.addLayer(layer);
      });