BingElevationDataProvider.RequestPointsElevations(List<GeoPoint>) Method

Requests elevations of the set of geographical points.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v23.2.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public void RequestPointsElevations(
    List<GeoPoint> points
)

VB.NET

Public Sub RequestPointsElevations(
    points As List(Of GeoPoint)
)

Parameters

Name	Type	Description
points	List<GeoPoint>	A list of the GeoPoint objects specifying the set of geographical points.

Example

This example demonstrates how to receive elevation data from the Bing Map Service.

To do this, request the required elevation information using the BingElevationDataProvider.RequestPointsElevations method.

MainWindow.xaml

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:BingElevationDataWpf"
        xmlns:dxm="http://schemas.devexpress.com/winfx/2008/xaml/map" x:Class="BingElevationDataWpf.MainWindow"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525" Loaded="OnLoaded">
    <Grid>

        <dxm:MapControl ZoomLevel="3" FontSize="7">
            <dxm:MapControl.CenterPoint>
                <dxm:GeoPoint Longitude="-100" Latitude="30"/>
            </dxm:MapControl.CenterPoint>
            <dxm:ImageLayer>
                <dxm:BingMapDataProvider BingKey="INSERT_YOUR_BING_KEY"/>
            </dxm:ImageLayer>
            <dxm:InformationLayer>
                <dxm:BingElevationDataProvider x:Name="provider" BingKey="INSERT_YOUR_BING_KEY"/>
            </dxm:InformationLayer>
        </dxm:MapControl>
    </Grid>
</Window>

MainWindow.xaml.vb

Imports DevExpress.Xpf.Map
Imports System.Collections.Generic
Imports System.Windows

Namespace BingElevationDataWpf
    ''' <summary>
    ''' Interaction logic for MainWindow.xaml
    ''' </summary>
    Partial Public Class MainWindow
        Inherits Window

        Public Sub New()
            InitializeComponent()
        End Sub
        Private Sub OnLoaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
            Dim locations As New List(Of GeoPoint)() From { _
                New GeoPoint(41.145556, -73.995), _
                New GeoPoint(36.131389, -90.937222), _
                New GeoPoint(32.175, -80.136389) _
            }
            provider.RequestPointsElevations(locations)
        End Sub
    End Class
End Namespace

MainWindow.xaml.cs

using DevExpress.Xpf.Map;
using System.Collections.Generic;
using System.Windows;

namespace BingElevationDataWpf {
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window {
        public MainWindow() {
            InitializeComponent();
        }
        private void OnLoaded(object sender, RoutedEventArgs e) {
            List<GeoPoint> locations = new List<GeoPoint> {
                new GeoPoint(41.145556, -73.995),
                new GeoPoint(36.131389, -90.937222),
                new GeoPoint(32.175, -80.136389)
            };
            provider.RequestPointsElevations(locations);
        }
    }
}