版本：9.1.0
加载自定义坐标系 ArcGIS 动态图层

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>加载自定义坐标系 arcgis 动态图层</title>
    <meta name="referrer" content="strict-origin-when-cross-origin" />
    <meta
      name="viewport"
      content="initial-scale=1,maximum-scale=1,user-scalable=no"
    />
    <style>
      body {
        margin: 0;
        padding: 0;
      }

      #map {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 100%;
      }

    </style>
    <script src="https://delivery.mapmost.com/cdn/sdk/webgl/v9.1.0/mapmost-webgl-min.js"></script>
  </head>

  <body>
    <div id="map"></div>
    <script>
      var map = new mapmost.Map({
        container: "map",
        style: {
          version: 8,
          sources: {},
          layers: [],
        },
        center: [118.17011168762161, 32.35080364397896],
        zoom: 15,
        pitch: 0,
        userId: "***", // 授权码
      });

      map.on("style.load", () => {
        
        map.defineProject(
          "EPSG:4548",
          "+proj=tmerc +lat_0=0 +lon_0=117 +k=1 +x_0=500000 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs"
        );

        map.addArcGISDynamicLayer({
          id: "layer",
          project: "EPSG:4548", //坐标系
          source: {
            url: "https://IP/***/MapServer", // 服务地址
            resolutions: null, //瓦片分辨率, 默认根据服务获取谷歌瓦片分辨率
            layers: "show:0", // 显示的图层
            format: "PNG", // 图片格式，默认为PNG
            transparent: true, // 图片是否透明，默认为 true
          },
        });
      });
    </script>
  </body>
</html>