Client-side projection

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This sample demonstrates how the geometries of client side features, whether added as graphics to the MapView or as a GeoJSONLayer, are automatically projected using the client-side projection module.

The MapView's spatialReference is switched on the fly to a projected spatial reference selected by the user.

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        // Reproject the data to the projection selected by the user
        const wkidSelect = document.getElementById("projectWKID");
        wkidSelect.addEventListener("change", () => {
          view.spatialReference = {
            wkid: wkidSelect.value
          };
          centerPoint.spatialReference = {
            wkid: wkidSelect.value
          };
          view.center = centerPoint;
        });

Known Limitations

The browser must support WebAssembly if a spatial reference other than WGS84 or Web Mercator is specified.

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