ElevationInformation Class
Contains the elevation information about a geographical point.
Namespace: DevExpress.XtraMap
Assembly: DevExpress.XtraMap.v18.1.dll
Declaration
Example
This example demonstrates how to receive elevation information from the Bing Maps service.
To do this, request elevation information using the BingElevationDataProvider.RequestPointsElevations method. Then, display the request result using the BingElevationDataProvider.ElevationsCalculated event handler.
Note
A complete sample project is available at https://github.com/DevExpress-Examples/how-to-obtain-elevation-data-of-geographical-points-t378724
using DevExpress.XtraMap;
using System;
using System.Collections.Generic;
using System.Windows.Forms;
namespace BingElevationData {
public partial class Form1 : Form {
InformationLayer layer { get { return (InformationLayer)mapControl.Layers[1]; } }
VectorItemsLayer vectorLayer { get { return (VectorItemsLayer)mapControl.Layers[2]; } }
BingElevationDataProvider provider { get { return (BingElevationDataProvider)layer.DataProvider; } }
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
provider.ElevationsCalculated += OnElevationCalculated;
provider.GenerateLayerItems = false;
List<GeoPoint> locations = new List<GeoPoint> {
new GeoPoint(41.145556, -73.995),
new GeoPoint(36.131389, -95.937222),
new GeoPoint(36.175, -115.136389)
};
provider.RequestPointsElevations(locations);
}
void OnElevationCalculated(object sender, ElevationsCalculatedEventArgs e) {
MapItemStorage storage = new MapItemStorage();
foreach (ElevationInformation elevationInformation in e.Result.Locations) {
storage.Items.Add(new MapCallout() {
Text = string.Format("{0}\nElevation = {1} m", elevationInformation.Location, elevationInformation.Elevation),
Location = elevationInformation.Location
});
}
vectorLayer.Data = storage;
}
}
}
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the ElevationInformation class.
Note
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