Format coordinates

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Format coordinates in a variety of common notations.

Images of format coordinates

Use case

The coordinate formatter can format a map location in WGS84 in a number of common coordinate notations. Parsing one of these formats to a location is also supported. Formats include decimal degrees; degrees, minutes, seconds; Universal Transverse Mercator (UTM), and United States National Grid (USNG).

How to use the sample

Tap on the map to see a callout with the clicked location's coordinate formatted in 4 different ways. You can also put a coordinate string in any of these formats in the text field. Hit Enter and the coordinate string will be parsed to a map location which the callout will move to.

How it works

  1. Get or create a MapPoint with a spatial reference.
  2. Use one of the static "to" methods on CoordinateFormatter such as CoordinateFormatter.ToLatitudeLongitude(point, CoordinateFormatter.LatitudeLongitudeFormat.DecimalDegrees, 4) to get the formatted string.
  3. To go from a formatted string to a Point, use one of the "from" static methods like CoordinateFormatter.FromUtm(coordinateString, map.SpatialReference, CoordinateFormatter.UtmConversionMode.NorthSouthIndicators).

Relevant API

  • CoordinateFormatter
  • CoordinateFormatter.LatitudeLongitudeFormat
  • CoordinateFormatter.UtmConversionMode

Tags

convert, coordinate, decimal degrees, degree minutes seconds, format, latitude, longitude, USNG, UTM

Sample Code

FormatCoordinates.xamlFormatCoordinates.xaml.cs
                              
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<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:esriUI="clr-namespace:Esri.ArcGISRuntime.Xamarin.Forms;assembly=Esri.ArcGISRuntime.Xamarin.Forms"
             x:Class="ArcGISRuntime.Samples.FormatCoordinates.FormatCoordinates">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Label Grid.Row="0" Grid.Column="0" HorizontalTextAlignment="End">Decimal Degrees</Label>
        <Entry Grid.Row="0" Grid.Column="1" Placeholder="Decimal Degrees" x:Name="DecimalDegreesTextField" />
        <Label Grid.Row="1" Grid.Column="0" HorizontalTextAlignment="End">Degrees, Minutes, Seconds</Label>
        <Entry Grid.Row="1" Grid.Column="1" Placeholder="Degrees, Minutes, Seconds" x:Name="DmsTextField" />
        <Label Grid.Row="2" Grid.Column="0" HorizontalTextAlignment="End">UTM</Label>
        <Entry Grid.Row="2" Grid.Column="1" Placeholder="UTM" x:Name="UtmTextField" />
        <Label Grid.Row="3" Grid.Column="0" HorizontalTextAlignment="End">USNG</Label>
        <Entry Grid.Row="3" Grid.Column="1" Placeholder="USNG" x:Name="UsngTextField" />
        <Button Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2" Clicked="RecalculateFields" Text="Recalculate" />
        <esriUI:MapView Grid.Row="5" Grid.Column="0" Grid.ColumnSpan="2" x:Name="MyMapView" />
    </Grid>
</ContentPage>

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