SimpleMarkerOverlay¶

Namespace: ThinkGeo.Core

Represents a MarkerOverlay object to which you can add markers directly.

public class SimpleMarkerOverlay : MarkerOverlay, System.IDisposable

Inheritance Object → Overlay → MarkerOverlay → SimpleMarkerOverlay
Implements IDisposable

Remarks:

The SimpleMarkerOverlay class has a Markers collection to which you can add markers directly. All of these markers will be placed on the map loading. You can also specify whether the markers can be dragged by setting the DragMode property.

Properties¶

DragMode¶

Gets a value that specifies how the markers can be dragged.

public MarkerDragMode DragMode { get; set; }

Property Value¶

MarkerDragMode
An enum value that specifies how the markers can be dragged.

Markers¶

A collection that holds all the marker objects adding in the overlay.

public GeoCollection<Marker> Markers { get; }

Property Value¶

GeoCollection<Marker>

WrappingMode¶

Thie property gets or sets whether allow wrap date line.

public WrappingMode WrappingMode { get; set; }

Property Value¶

WrappingMode

WrappingExtent¶

public RectangleShape WrappingExtent { get; set; }

Property Value¶

RectangleShape

CanRefreshRegion¶

public bool CanRefreshRegion { get; protected set; }

Property Value¶

Boolean

IsBase¶

public bool IsBase { get; set; }

Property Value¶

Boolean

Name¶

Gets or sets the name of this overaly.

public string Name { get; set; }

Property Value¶

String

MapArguments¶

Gets or sets current map information which will be used for calculating mechanism.

public MapArguments MapArguments { get; set; }

Property Value¶

MapArguments

OverlayCanvas¶

Gets or sets the actual canvas which maintains all the visual elements on the overlay.

public Canvas OverlayCanvas { get; set; }

Property Value¶

Canvas

DrawingExceptionMode¶

This property gets and sets the DrawingExceptionMode used when an exception occurs during drawing.

public DrawingExceptionMode DrawingExceptionMode { get; set; }

Property Value¶

DrawingExceptionMode

IsVisible¶

Gets or sets if this overlay is visible.

public bool IsVisible { get; set; }

Property Value¶

Boolean

RefreshTypeOnResize¶

public OverlayRefreshType RefreshTypeOnResize { get; set; }

Property Value¶

OverlayRefreshType

Attribution¶

public string Attribution { get; set; }

Property Value¶

String

IsEmpty¶

This property gets if this overlay is empty or not.

public bool IsEmpty { get; }

Property Value¶

Boolean

Remarks:

This property enhances the performance of the overlay while drawing. If is true, we will skip drawing this overlay and continue drawing the next overlay.

AutoRefreshInterval¶

public TimeSpan AutoRefreshInterval { get; set; }

Property Value¶

TimeSpan

Constructors¶

SimpleMarkerOverlay()¶

Constructor of SimpleMarkerOverlay class.

public SimpleMarkerOverlay()

SimpleMarkerOverlay(IEnumerable<Marker>)¶

Constructor of SimpleMarkerOver

public SimpleMarkerOverlay(IEnumerable<Marker> markers)

Parameters¶

markers IEnumerable<Marker>

Methods¶

GetMarkersForDrawingCore(RectangleShape)¶

Gets all the markers that are containing in the provided world extent.

protected GeoCollection<Marker> GetMarkersForDrawingCore(RectangleShape boundingBox)

Parameters¶

boundingBox RectangleShape
A world extent of current viewport.

Returns¶

GeoCollection<Marker>
A collection of marker objects that are in the provided world extent.

DrawCore(RectangleShape, OverlayRefreshType)¶

protected void DrawCore(RectangleShape targetExtent, OverlayRefreshType overlayRefreshType)

Parameters¶

targetExtent RectangleShape

overlayRefreshType OverlayRefreshType

OnMarkerDragging(MarkerDraggingSimpleMarkerOverlayEventArgs)¶

This method raises before the marker is dragging.

protected void OnMarkerDragging(MarkerDraggingSimpleMarkerOverlayEventArgs args)

Parameters¶

args MarkerDraggingSimpleMarkerOverlayEventArgs
This parameter is the event args for the MarkerDragging event.

OnMarkerDragged(MarkerDraggedSimpleMarkerOverlayEventArgs)¶

This method raises after the marker is dragged.

protected void OnMarkerDragged(MarkerDraggedSimpleMarkerOverlayEventArgs args)

Parameters¶

args MarkerDraggedSimpleMarkerOverlayEventArgs
This parameter is the event args for the MarkerDragged event.

GetBoundingBoxCore()¶

This method gets a bounding box that maintains all the markers which are added in this overlay.

protected RectangleShape GetBoundingBoxCore()

Returns¶

RectangleShape
Returns a RectangleShape that maintains all the markers which are added in this overlay.

SaveStateCore()¶

This method saves simple marker overlay state to a byte array.

protected Byte[] SaveStateCore()

Returns¶

Byte[]
A byte array indicates current overlay state.

LoadStateCore(Byte[])¶

This method restore the simple marker overlay state back from the specified state.

protected void LoadStateCore(Byte[] state)

Parameters¶

state Byte[]
This parameter indicates the state for restore the overlay.

Events¶

MarkerDragging¶

This is an event raises before the marker is dragging.

public event EventHandler<MarkerDraggingSimpleMarkerOverlayEventArgs> MarkerDragging;

MarkerDragged¶

This is an event raises after the marker is dragged.

public event EventHandler<MarkerDraggedSimpleMarkerOverlayEventArgs> MarkerDragged;

Drawing¶

This event raises before the overlay is drawing.

public event EventHandler<DrawingOverlayEventArgs> Drawing;

Drawn¶

This event raises after the overlay is drawn.

public event EventHandler<DrawnOverlayEventArgs> Drawn;

DrawingAttribution¶

public event EventHandler<DrawingAttributionOverlayEventArgs> DrawingAttribution;

DrawnAttribution¶

public event EventHandler<DrawnAttributionOverlayEventArgs> DrawnAttribution;

ThrowingException¶

public event EventHandler<ThrowingExceptionOverlayEventArgs> ThrowingException;