光晕

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        const earthquakesLayer = new FeatureLayer({
          url: "https://services.arcgis.com/6DIQcwlPy8knb6sg/geoscene/rest/services/quakes/FeatureServer/0/",
          renderer: {
            type: "simple",
            symbol: {
              type: "simple-marker",
              color: "#fd7f6f",
              size: 1,
              outline: null
            }
          }
        });

        earthquakesLayer.effect = "bloom(1.3, 0.1px, 15%)";

 

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        const highwaysLayer = new FeatureLayer({
          portalItem: {
            id: "cca8f554a0764b94b35f8b1781e399de"
          },
          effect: "bloom(1, 0px, 1%)"
        });