Map spatial reference

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MAUI

UWP

WPF

WinUI

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Specify a map's spatial reference.

Image of map 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

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

Sample Code

SetMapSpatialReference.xaml

SetMapSpatialReference.xaml.cs

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﻿<UserControl
    x:Class="ArcGIS.UWP.Samples.SetMapSpatialReference.SetMapSpatialReference"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="300">
    <Grid>
        <esriUI:MapView x:Name="MyMapView"/>
    </Grid>
</UserControl>