GeoMapCoordinateSystem Class

This class allows use of the Geographical coordinate system for the Map Control.

Namespace: DevExpress.XtraMap

Assembly: DevExpress.XtraMap.v18.1.dll

Declaration

C#

public class GeoMapCoordinateSystem :
    MapCoordinateSystem

VB.NET

Public Class GeoMapCoordinateSystem
    Inherits MapCoordinateSystem

Remarks

An object of GeoMapCoordinateSystem class can be assigned to the MapControl.CoordinateSystem property.

Example

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-customize-coordinate-systems-of-a-map-and-data-source-t202055

Form1.cs

void SetGeoMapGeoData() {
    imageLayer.Visible = false;

    Uri baseUri = new Uri(System.Reflection.Assembly.GetEntryAssembly().Location);
    Adapter.FileUri = new Uri(baseUri, geoMapGeoDataFile);
    Adapter.SourceCoordinateSystem = new GeoSourceCoordinateSystem();

    mapControl.CoordinateSystem = new GeoMapCoordinateSystem();
}
void SetGeoMapCartesianData() {
    imageLayer.Visible = true;

    Uri baseUri = new Uri(System.Reflection.Assembly.GetEntryAssembly().Location);
    Adapter.FileUri = new Uri(baseUri, geoMapCartesianDataShpFile);
    Adapter.SourceCoordinateSystem = ShapefileDataAdapter.LoadPrjFile(new Uri(baseUri, geoMapCartesianDataPrjFile));

    mapControl.CoordinateSystem = new GeoMapCoordinateSystem();
}

Form1.vb

Private Sub SetGeoMapGeoData()
    imageLayer.Visible = False

    Dim baseUri As New Uri(System.Reflection.Assembly.GetEntryAssembly().Location)
    Adapter.FileUri = New Uri(baseUri, geoMapGeoDataFile)
    Adapter.SourceCoordinateSystem = New GeoSourceCoordinateSystem()

    mapControl.CoordinateSystem = New GeoMapCoordinateSystem()
End Sub
Private Sub SetGeoMapCartesianData()
    imageLayer.Visible = True

    Dim baseUri As New Uri(System.Reflection.Assembly.GetEntryAssembly().Location)
    Adapter.FileUri = New Uri(baseUri, geoMapCartesianDataShpFile)
    Adapter.SourceCoordinateSystem = ShapefileDataAdapter.LoadPrjFile(New Uri(baseUri, geoMapCartesianDataPrjFile))

    mapControl.CoordinateSystem = New GeoMapCoordinateSystem()
End Sub

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the GeoMapCoordinateSystem class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-implement-a-custom-map-projection-e4783/CS/CustomProjection/Form1.cs#L9

GeoMapCoordinateSystem CoordinateSystem {
    get { return (GeoMapCoordinateSystem)mapControl1.CoordinateSystem; }

how-to-customize-coordinate-systems-of-a-map-and-data-source-t202055/CS/CoordinateSystems/Form1.cs#L32

    mapControl.CoordinateSystem = new GeoMapCoordinateSystem();
}

how-to-specify-a-map-projection-t232940/CS/MapProjections/Form1.cs#L22

GeoMapCoordinateSystem CoordinateSystem { get { return mapControl.CoordinateSystem as GeoMapCoordinateSystem; } }

VB.NET

how-to-implement-a-custom-map-projection-e4783/VB/CustomProjection/Form1.vb#L11

Private ReadOnly Property CoordinateSystem() As GeoMapCoordinateSystem
    Get

how-to-specify-a-map-projection-t232940/VB/MapProjections/Form1.vb#L24

Private ReadOnly Property CoordinateSystem() As GeoMapCoordinateSystem
    Get

how-to-customize-coordinate-systems-of-a-map-and-data-source-t202055/VB/CoordinateSystems/Form1.vb#L34

    mapControl.CoordinateSystem = New GeoMapCoordinateSystem()
End Sub

Inheritance

Object

MapCoordinateSystem

GeoMapCoordinateSystem