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ThinkGeoMBTilesLayer

Namespace: ThinkGeo.Core

public class ThinkGeoMBTilesLayer : Layer

Inheritance ObjectLayerThinkGeoMBTilesLayer

Properties

ProjectionConverter

public ProjectionConverter ProjectionConverter { get; set; }

Property Value

ProjectionConverter

BitmapTileCache

public RasterTileCache BitmapTileCache { get; set; }

Property Value

RasterTileCache

StyleJsonUri

public Uri StyleJsonUri { get; set; }

Property Value

Uri

DrawingQuality

public DrawingQuality DrawingQuality { get; set; }

Property Value

DrawingQuality

ShowDebugInfo

public bool ShowDebugInfo { get; set; }

Property Value

Boolean

TileSize

public int TileSize { get; set; }

Property Value

Int32

DrawingMarginInPixel

public float DrawingMarginInPixel { get; set; }

Property Value

Single

IsOpen

This property returns true if the Layer is open and false if it is not.

public bool IsOpen { get; }

Property Value

Boolean

Remarks:

This method is the concrete wrapper for the abstract method IsOpenCore. Various methods on the Layer require that it be in an open state. If one of those methods is called when the state is not open, then the method will throw an exception. To enter the open state, you must call the Layer Open method. The method will raise an exception if the current Layer is already open.

As this is a concrete public method that wraps a Core method, we reserve the right to add events and other logic to pre- or post-process data returned by the Core version of the method. In this way, we leave our framework open on our end, but also allow you the developer to extend our logic to suit your needs. If you have questions about this, please contact our support team as we would be happy to work with you on extending our framework.

HasBoundingBox

This property indicates whether a Layer has a BoundingBox or not. If it has no BoundingBox, it will throw an exception when you call the GetBoundingBox() and GetFullExtent() APIs.

public bool HasBoundingBox { get; }

Property Value

Boolean

Remarks:

The default value is false.

DrawingTime

This property gets the last drawing time for the layer.

public TimeSpan DrawingTime { get; protected set; }

Property Value

TimeSpan

Remarks:

We track the drawing time for the layer and report it back in this method. This is useful for determining the speed of various layers.

Name

This property gets and sets the name for the layer.

public string Name { get; set; }

Property Value

String

Remarks:

The name is user defined. It is useful to set, as it may be used for higher level components such as legends, etc.

Attribution

public string Attribution { get; set; }

Property Value

String

IsVisible

This property gets and set the visible state of the layer.

public bool IsVisible { get; set; }

Property Value

Boolean

Remarks:

If this property is set to false, the layer will not draw. We ensure this in the Draw method. This is useful for legends and other controls that control the visibility of layers.

Transparency

This property gets and sets the amount of transparency to apply to the image.

public float Transparency { get; set; }

Property Value

Single
This property gets the amount of transparency to apply to the image.

Remarks:

None

BlueTranslation

This property gets and sets the amount of blue to apply to the image.

public float BlueTranslation { get; set; }

Property Value

Single
This property gets the amount of blue to apply to the image.

Remarks:

None

RedTranslation

This property gets and sets the amount of red to apply to the image.

public float RedTranslation { get; set; }

Property Value

Single
This property gets the amount of red to apply to the image.

Remarks:

None

GreenTranslation

This property gets and sets the amount of green to apply to the image.

public float GreenTranslation { get; set; }

Property Value

Single
This property gets the amount of green to apply to the image.

Remarks:

None

KeyColors

Gets a value represents a collection of key colors. If SupportKeyColor property is false, it will throw exception when you use KeyColors.

public Collection<GeoColor> KeyColors { get; }

Property Value

Collection<GeoColor>

Remarks:

It will make these colors transparent when draw image.

IsNegative

This property gets and sets whether the image should be converted to negative (inverse colors).

public bool IsNegative { get; set; }

Property Value

Boolean
This property gets and sets whether the image should be converted to negative (inverse colors).

Remarks:

None

IsGrayscale

This property gets and sets if the image should be converted to grayscale.

public bool IsGrayscale { get; set; }

Property Value

Boolean

        This property gets and sets if the image should be converted to grayscale.

Remarks:

None

ColorMappings

ColorMapping

public Dictionary<GeoColor, GeoColor> ColorMappings { get; }

Property Value

Dictionary<GeoColor, GeoColor>

DrawingExceptionMode

Gets or sets the DrawExceptionMode when exception happens.

public DrawingExceptionMode DrawingExceptionMode { get; set; }

Property Value

DrawingExceptionMode

ThreadSafe

public ThreadSafetyLevel ThreadSafe { get; set; }

Property Value

ThreadSafetyLevel

Projection

Gets the projection of the layer.

public Projection Projection { get; set; }

Property Value

Projection

Background

Gets and sets the background of the layer.

public GeoColor Background { get; set; }

Property Value

GeoColor

RequestDrawingInterval

public TimeSpan RequestDrawingInterval { get; set; }

Property Value

TimeSpan

Constructors

ThinkGeoMBTilesLayer()

public ThinkGeoMBTilesLayer()

ThinkGeoMBTilesLayer(String)

public ThinkGeoMBTilesLayer(string mbTilesPathFilename)

Parameters

mbTilesPathFilename String

ThinkGeoMBTilesLayer(String, Uri)

public ThinkGeoMBTilesLayer(string mbTilesPathFilename, Uri styleJsonUri)

Parameters

mbTilesPathFilename String

styleJsonUri Uri

Methods

CloseCore()

protected void CloseCore()

OpenCore()

protected void OpenCore()

GetBoundingBoxCore()

protected RectangleShape GetBoundingBoxCore()

Returns

RectangleShape

GetTile(Int64, Int64, Int64)

public VectorTile GetTile(long zoom, long column, long row)

Parameters

zoom Int64

column Int64

row Int64

Returns

VectorTile

LoadStyleJson()

public void LoadStyleJson()

DrawTileAsync(GeoCanvas, Int32, Int64, Int64)

public Task DrawTileAsync(GeoCanvas canvas, int zoomIndex, long columnIndex, long rowIndex)

Parameters

canvas GeoCanvas

zoomIndex Int32

columnIndex Int64

rowIndex Int64

Returns

Task

gDc=(GeoCanvas, Int32, Int64, Int64, ZoomLevelSet, Boolean, RasterTileCache, Int32, List<String>, LEE=, Boolean, Int32)

internal static Task gDc=(GeoCanvas canvas, int zoomIndex, long columnIndex, long rowIndex, ZoomLevelSet zoomLevelSet, bool ShowDebugInfo, RasterTileCache BitmapTileCache, int maxZoom, List<string> pbfLayerNames, LEE= getFeaturesFromPbfVectorTileAsyncDelegate, bool useLegacyLabeling, int tileSize)

Parameters

canvas GeoCanvas

zoomIndex Int32

columnIndex Int64

rowIndex Int64

zoomLevelSet ZoomLevelSet

ShowDebugInfo Boolean

BitmapTileCache RasterTileCache

maxZoom Int32

pbfLayerNames List<String>

getFeaturesFromPbfVectorTileAsyncDelegate LEE=

useLegacyLabeling Boolean

tileSize Int32

Returns

Task

gTc=(Int32, Int64, Int64, RectangleShape, CancellationTokenSource, Int32, List<String>, LUE=)

internal static Collection<Feature> gTc=(int zoom, long column, long row, RectangleShape boundingBox, CancellationTokenSource cancellationTokenSource, int maxZoom, List<string> pbfLayerNames, LUE= getFeaturesFromPbfVectorTile)

Parameters

zoom Int32

column Int64

row Int64

boundingBox RectangleShape

cancellationTokenSource CancellationTokenSource

maxZoom Int32

pbfLayerNames List<String>

getFeaturesFromPbfVectorTile LUE=

Returns

Collection<Feature>

gjc=(Int32, Int64, Int64, RectangleShape, CancellationTokenSource, Int32, List<String>, LEE=)

internal static Task<Collection<Feature>> gjc=(int zoom, long column, long row, RectangleShape boundingBox, CancellationTokenSource cancellationTokenSource, int maxZoom, List<string> pbfLayerNames, LEE= getFeaturesFromPbfVectorTileAsync)

Parameters

zoom Int32

column Int64

row Int64

boundingBox RectangleShape

cancellationTokenSource CancellationTokenSource

maxZoom Int32

pbfLayerNames List<String>

getFeaturesFromPbfVectorTileAsync LEE=

Returns

Task<Collection<Feature>>

gzc=(ZoomLevelSet, Int32)

internal static List<string> gzc=(ZoomLevelSet zoomLevelSet, int zoomLevelIndex)

Parameters

zoomLevelSet ZoomLevelSet

zoomLevelIndex Int32

Returns

List<String>

DrawCore(GeoCanvas, Collection<SimpleCandidate>)

protected void DrawCore(GeoCanvas canvas, Collection<SimpleCandidate> labelsInAllLayers)

Parameters

canvas GeoCanvas

labelsInAllLayers Collection<SimpleCandidate>

OnGeneratingTile(GeneratingTileMBTilesLayerEventArgs)

protected void OnGeneratingTile(GeneratingTileMBTilesLayerEventArgs e)

Parameters

e GeneratingTileMBTilesLayerEventArgs

OnGeneratedTile(GeneratedTileMBTilesLayerEventArgs)

protected void OnGeneratedTile(GeneratedTileMBTilesLayerEventArgs e)

Parameters

e GeneratedTileMBTilesLayerEventArgs

GetVectorTilesForDrawing(RectangleShape, Double)

public Collection<VectorTile> GetVectorTilesForDrawing(RectangleShape boundingBox, double screenWidth)

Parameters

boundingBox RectangleShape

screenWidth Double

Returns

Collection<VectorTile>

ExecuteNonQueryCore(String)

public int ExecuteNonQueryCore(string sqlStatement)

Parameters

sqlStatement String

Returns

Int32

ExecuteQueryCore(String)

public DataTable ExecuteQueryCore(string sqlStatement)

Parameters

sqlStatement String

Returns

DataTable

ExecuteScalarCore(String)

public object ExecuteScalarCore(string sqlStatement)

Parameters

sqlStatement String

Returns

Object

DrawGeometry(GeoCanvas, Collection<SimpleCandidate>)

public void DrawGeometry(GeoCanvas canvas, Collection<SimpleCandidate> labelsInAllLayers)

Parameters

canvas GeoCanvas

labelsInAllLayers Collection<SimpleCandidate>

GenerateTilesAsync(IEnumerable<MBTilesGenerationLayerSetting>, CancellationToken)

public Task GenerateTilesAsync(IEnumerable<MBTilesGenerationLayerSetting> layerSettings, CancellationToken cancellationToken)

Parameters

layerSettings IEnumerable<MBTilesGenerationLayerSetting>

cancellationToken CancellationToken

Returns

Task

BeginTransaction()

public void BeginTransaction()

CommitTransaction()

public TransactionResult CommitTransaction()

Returns

TransactionResult

CommitTransaction(TransactionBuffer)

public TransactionResult CommitTransaction(TransactionBuffer transactions)

Parameters

transactions TransactionBuffer

Returns

TransactionResult

WriteMetaData(String, String)

public void WriteMetaData(string key, string value)

Parameters

key String

value String

CreateDatabase(String, Boolean)

public static void CreateDatabase(string mbTilesPath, bool isOverwrite)

Parameters

mbTilesPath String

isOverwrite Boolean

AddTile(VectorTile)

public void AddTile(VectorTile vectorTile)

Parameters

vectorTile VectorTile

UpdateTile(VectorTile)

public void UpdateTile(VectorTile vectorTile)

Parameters

vectorTile VectorTile

DeleteTile(VectorTile)

public void DeleteTile(VectorTile vectorTile)

Parameters

vectorTile VectorTile

Events

GeneratingTile

public event EventHandler<GeneratingTileMBTilesLayerEventArgs> GeneratingTile;

GeneratedTile

public event EventHandler<GeneratedTileMBTilesLayerEventArgs> GeneratedTile;

DrawingProgressChanged

public event EventHandler<DrawingProgressChangedEventArgs> DrawingProgressChanged;

DrawingException

public event EventHandler<DrawingExceptionLayerEventArgs> DrawingException;

DrawnException

public event EventHandler<DrawnExceptionLayerEventArgs> DrawnException;

DrawingAttribution

public event EventHandler<DrawingAttributionLayerEventArgs> DrawingAttribution;

DrawnAttribution

public event EventHandler<DrawnAttributionLayerEventArgs> DrawnAttribution;

RequestedDrawing

public event EventHandler<RequestedDrawingLayerEventArgs> RequestedDrawing;

RequestingDrawing

public event EventHandler<RequestingDrawingLayerEventArgs> RequestingDrawing;

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