Class RasterizingTileLayer

Rasterizing Tile Layer. A Layer that Rasterizes and Tiles the Layer. For Faster Performance. It recreates the Tiles if Data is changed.

Inheritance
object
BaseLayer
TileLayer
RasterizingTileLayer
Implements
Inherited Members
Namespace: Mapsui.Tiling.Layers
Assembly: Mapsui.Tiling.dll
Syntax
public class RasterizingTileLayer : TileLayer, ILayer, IAnimatable, INotifyPropertyChanged, IDisposable, ISourceLayer, IFetchableSource, ILayerFeatureInfo

Constructors

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RasterizingTileLayer(ILayer, float, int, int, IDataFetchStrategy?, IRenderFetchStrategy?, int, int, IPersistentCache<byte[]>?, IProjection?, RenderFormat)

Creates a RasterizingTileLayer which rasterizes a layer for performance

Declaration
public RasterizingTileLayer(ILayer layer, float pixelDensity = 1, int minTiles = 200, int maxTiles = 300, IDataFetchStrategy? dataFetchStrategy = null, IRenderFetchStrategy? renderFetchStrategy = null, int minExtraTiles = -1, int maxExtraTiles = -1, IPersistentCache<byte[]>? persistentCache = null, IProjection? projection = null, RenderFormat renderFormat = RenderFormat.Png)
Parameters
Type Name Description
ILayer layer

The Layer to be rasterized
float pixelDensity
int minTiles

Minimum number of tiles to cache
int maxTiles

Maximum number of tiles to cache
IDataFetchStrategy dataFetchStrategy

Strategy to get list of tiles for given extent
IRenderFetchStrategy renderFetchStrategy
int minExtraTiles

Number of minimum extra tiles for memory cache
int maxExtraTiles

Number of maximum extra tiles for memory cache
IPersistentCache<byte[]> persistentCache

Persistent Cache
IProjection projection

Projection
RenderFormat renderFormat

Format to Render To

Properties

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SourceLayer

Declaration
public ILayer SourceLayer { get; }
Property Value
Type Description
ILayer

Methods

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GetFeatureInfoAsync(Viewport, ScreenPosition)

Declaration
public Task<IDictionary<string, IEnumerable<IFeature>>> GetFeatureInfoAsync(Viewport viewport, ScreenPosition screenPosition)
Parameters
Type Name Description
Viewport viewport
ScreenPosition screenPosition
Returns
Type Description
Task<IDictionary<string, IEnumerable<IFeature>>>
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ViewportChanged(FetchInfo)

Informs the layer that the viewport has changed and it should update its data accordingly.

Declaration
public override void ViewportChanged(FetchInfo fetchInfo)
Parameters
Type Name Description
FetchInfo fetchInfo
Overrides

Implements

Extension Methods