Class MapControl

Inheritance
object
DispatcherObject
DependencyObject
Visual
UIElement
FrameworkElement
Panel
Grid
MapControl
Implements
Inherited Members
Namespace: Mapsui.UI.Wpf
Assembly: Mapsui.UI.Wpf.dll
Syntax
public class MapControl : Grid, IAnimatable, ISupportInitialize, IFrameworkInputElement, IInputElement, IQueryAmbient, IAddChild, IMapControl, IDisposable, INotifyPropertyChanged

Constructors

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MapControl()

Declaration
public MapControl()

Properties

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Map

Map holding data for which is shown in this MapControl

Declaration
public Map Map { get; set; }
Property Value
Type Description
Map
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Performance

Object to save performance information about the drawing of the map

Declaration
public Performance? Performance { get; set; }
Property Value
Type Description
Performance
Remarks

If this is null, no performance information is saved.

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PixelDensity

The number of pixel per device independent unit

Declaration
public float PixelDensity { get; }
Property Value
Type Description
float
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ReSnapRotationDegrees

With how many degrees from 0 should map snap to 0 degrees

Declaration
public double ReSnapRotationDegrees { get; set; }
Property Value
Type Description
double
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Renderer

Renderer that is used from this MapControl

Declaration
public IRenderer Renderer { get; set; }
Property Value
Type Description
IRenderer
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ShiftPressed

Declaration
public bool ShiftPressed { get; }
Property Value
Type Description
bool
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UnSnapRotationDegrees

After how many degrees start rotation to take place

Declaration
public double UnSnapRotationDegrees { get; set; }
Property Value
Type Description
double
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UpdateInterval

Interval between two redraws of the MapControl in ms

Declaration
public int UpdateInterval { get; set; }
Property Value
Type Description
int
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WpfCanvas

Declaration
public Canvas WpfCanvas { get; }
Property Value
Type Description
Canvas

Methods

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CallHomeIfNeeded()

Declaration
public void CallHomeIfNeeded()
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Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public void Dispose()
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Dispose(bool)

Declaration
protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing
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ForceUpdate()

Force a update of control

Declaration
public void ForceUpdate()
Remarks

When this function is called, the control draws itself once

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GetMapInfo(MPoint?, int)

Check, if a feature at a given screen position is hit

Declaration
public MapInfo? GetMapInfo(MPoint? screenPosition, int margin = 0)
Parameters
Type Name Description
MPoint screenPosition

Screen position to check for widgets and features
int margin

An optional extra margin around the feature to enlarge the hit area.
Returns
Type Description
MapInfo
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GetSnapshot(IEnumerable<ILayer>?)

Create a snapshot form map as PNG image

Declaration
public byte[] GetSnapshot(IEnumerable<ILayer>? layers = null)
Parameters
Type Name Description
IEnumerable<ILayer> layers

Layers that should be included in snapshot
Returns
Type Description
byte[]

Byte array with snapshot in png format. If there are any problems than returns null.
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OnPropertyChanged(string)

Declaration
protected void OnPropertyChanged(string propertyName = "")
Parameters
Type Name Description
string propertyName
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OpenBrowser(string)

Declaration
public void OpenBrowser(string url)
Parameters
Type Name Description
string url
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Refresh(ChangeType)

Declaration
public void Refresh(ChangeType changeType = ChangeType.Discrete)
Parameters
Type Name Description
ChangeType changeType
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RefreshData(ChangeType)

Refresh data of Map, but don't paint it

Declaration
public void RefreshData(ChangeType changeType = ChangeType.Discrete)
Parameters
Type Name Description
ChangeType changeType
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RefreshGraphics()

Declaration
public void RefreshGraphics()
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ResetWidgetCache()

Reset the widget cache. It may be necessary to call this explicitly after the widgets have changed.

Declaration
protected void ResetWidgetCache()
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StartUpdates(bool)

Start updates for control

Declaration
public void StartUpdates(bool refresh = true)
Parameters
Type Name Description
bool refresh
Remarks

When this function is called, the control is redrawn if needed

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StopUpdates()

Stop updates for control

Declaration
public void StopUpdates()
Remarks

When this function is called, the control stops to redraw itself, even if it is needed

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ToDeviceIndependentUnits(MPoint)

Converts coordinates in pixels to device independent units (or DIP or DP).

Declaration
public MPoint ToDeviceIndependentUnits(MPoint coordinateInPixels)
Parameters
Type Name Description
MPoint coordinateInPixels

Coordinate in pixels
Returns
Type Description
MPoint

Coordinate in device independent units (or DIP or DP)
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ToPixels(MPoint)

Converts coordinates in device independent units (or DIP or DP) to pixels.

Declaration
public MPoint ToPixels(MPoint coordinateInDeviceIndependentUnits)
Parameters
Type Name Description
MPoint coordinateInDeviceIndependentUnits

Coordinate in device independent units (or DIP or DP)
Returns
Type Description
MPoint

Coordinate in pixels
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Unsubscribe()

Unsubscribe from map events

Declaration
public void Unsubscribe()
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ZoomToBox(MPoint, MPoint)

Declaration
public void ZoomToBox(MPoint beginPoint, MPoint endPoint)
Parameters
Type Name Description
MPoint beginPoint
MPoint endPoint

Events

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FeatureInfo

Declaration
public event EventHandler<FeatureInfoEventArgs>? FeatureInfo
Event Type
Type Description
EventHandler<FeatureInfoEventArgs>
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Fling

Fling is called, when user release mouse button or lift finger while moving with a certain speed, higher than speed of swipe

Declaration
public event EventHandler<SwipedEventArgs>? Fling
Event Type
Type Description
EventHandler<SwipedEventArgs>
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Info

Called whenever the map is clicked. The MapInfoEventArgs contain the features that were hit in the layers that have IsMapInfoLayer set to true.

Declaration
public event EventHandler<MapInfoEventArgs>? Info
Event Type
Type Description
EventHandler<MapInfoEventArgs>
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PropertyChanged

Called whenever a property is changed

Declaration
public event PropertyChangedEventHandler? PropertyChanged
Event Type
Type Description
PropertyChangedEventHandler

Implements