AzureRouteIsochroneDataProvider.CalculateIsochroneByDistance(RouteWaypoint, Double, AzureRouteIsochroneOptions) Method

Calculates an isochrone based on travel distance.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v24.2.dll

Declaration

C#

public void CalculateIsochroneByDistance(
    RouteWaypoint waypoint,
    double maxDistanceMeters,
    AzureRouteIsochroneOptions options
)

VB.NET

Public Sub CalculateIsochroneByDistance(
    waypoint As RouteWaypoint,
    maxDistanceMeters As Double,
    options As AzureRouteIsochroneOptions
)

Parameters

Name	Type	Description
waypoint	RouteWaypoint	Origin point coordinates.
maxDistanceMeters	Double	Maximum allowed travel distance. The default measurement unit is meter.
options	AzureRouteIsochroneOptions	An AzureRouteIsochroneOptions object that defines isochrone calculation options passed to the Azure Maps service.

Remarks

When you call CalculateIsochroneByTime or CalculateIsochroneByDistance methods, use the AzureRouteIsochroneOptions parameter to specify route options.

The following settings are available:

AzureRouteIsochroneOptions.AvoidTypes

Excludes specified road or transportation types from the route.

AzureRouteIsochroneOptions.ExtendedRouteDefinitions

Specifies additional route calculation parameters (definitions).

AzureRouteIsochroneOptions.TravelMode

Specifies the transportation / commute mode.

The following example calculates and plots an isochrone. The code sets the origin point and travel distance limit (10 km).

C#

using DevExpress.XtraMap;
// ...
AzureRouteIsochroneDataProvider azureRoute;
const string azureKey = "your key";
// ...
public Form1() {
    InitializeComponent();
    imageLayer1.DataProvider = new AzureMapDataProvider() {
        AzureKey = azureKey,
        Tileset = AzureTileset.Imagery,
    };
    imageLayer2.DataProvider = new AzureMapDataProvider() {
        AzureKey = azureKey,
        Tileset = AzureTileset.BaseHybridRoad,
    };
    azureRoute = new AzureRouteIsochroneDataProvider {
        AzureKey = azureKey,
    };
    informationLayer1.DataProvider = azureRoute; 
    GeoPoint origin = new GeoPoint(36.1532403246368, -86.7701703811725);
    azureRoute.CalculateIsochroneByDistance(new RouteWaypoint("", origin), 10000, 
        new AzureRouteIsochroneOptions { AvoidTypes = AzureRouteAvoidType.Motorways });
    mapControl1.SetCenterPoint(origin, false);
    mapControl1.Zoom(11);
}

VB.NET

Imports DevExpress.XtraMap
' ...
Private azureRoute As AzureRouteIsochroneDataProvider
Private Const azureKey As String = "your key"
' ...
Public Sub New()
    InitializeComponent()
    imageLayer1.DataProvider = New AzureMapDataProvider() With {
        .AzureKey = azureKey,
        .Tileset = AzureTileset.Imagery
    }
    imageLayer2.DataProvider = New AzureMapDataProvider() With {
        .AzureKey = azureKey,
        .Tileset = AzureTileset.BaseHybridRoad
    }
    azureRoute = New AzureRouteIsochroneDataProvider With {.AzureKey = azureKey}
    informationLayer1.DataProvider = azureRoute
    Dim origin As New GeoPoint(36.1532403246368, -86.7701703811725)
    azureRoute.CalculateIsochroneByDistance(New RouteWaypoint("", origin), 10000, New AzureRouteIsochroneOptions With {.AvoidTypes = AzureRouteAvoidType.Motorways})
    mapControl1.SetCenterPoint(origin, False)
    mapControl1.Zoom(11)
End Sub