Map spatial reference

Specify a map's spatial reference.

Use case

Choosing the correct spatial reference is important for ensuring accurate projection of data points to a map.

How to use the sample

Pan and zoom around the map. Observe how the map is displayed using the World Bonne spatial reference.

How it works

1. Instantiate a Map object using a spatial reference e.g. ArcGISMap(SpatialReference.Create(54024)).
2. Instantiate a Basemap object using an ArcGISMapImageLayer object.
3. Set the base map to the map.
4. Set the map to a MapView object.

The ArcGIS map image layer will now use the spatial reference set to the ArcGIS map (World Bonne (WKID: 54024)) and not it's default spatial reference.

Relevant API

• ArcGISMapImageLayer
• Basemap
• Map
• MapView
• SpatialReference

Additional information

Operational layers will automatically project to this spatial reference when possible.

Tags

project, WKID

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<UserControl x:Class="ArcGISRuntime.WinUI.Samples.SetMapSpatialReference.SetMapSpatialReference"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
    <Grid>
        <esriUI:MapView x:Name="MyMapView" />
    </Grid>
</UserControl>