OgcApiProgressiveFeatureLayer¶

Namespace: ThinkGeo.UI.Maui

Represents a progressive feature layer that retrieves data from an OGC API Features service.

public class OgcApiProgressiveFeatureLayer : ProgressiveFeatureLayer, ThinkGeo.Core.IFeatureLayer

Inheritance object → LayerBase → Layer → FeatureLayer → ProgressiveFeatureLayer → OgcApiProgressiveFeatureLayer
Implements IFeatureLayer

Properties¶

Url¶

The url of OGC API Features server.

public string Url { get; set; }

Property Value¶

string

BulkSize¶

Gets or sets the number of features to retrieve in each batch request.

public int BulkSize { get; set; }

Property Value¶

int

CollectionId¶

The collection ID in the OGC API Features server.

public string CollectionId { get; set; }

Property Value¶

string

TimeoutInSeconds¶

This property specifies the timeout of the web request in seconds. The default timeout value is 20 seconds.

public int TimeoutInSeconds { get; set; }

Property Value¶

int

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¶

bool

Remarks:

The default value is false.

WebProxy¶

This property gets or sets the proxy used for requesting a Web Response.

public IWebProxy WebProxy { get; set; }

Property Value¶

IWebProxy

Projection¶

public Projection Projection { get; }

Property Value¶

Projection

EditTools¶

public EditTools EditTools { get; protected set; }

Property Value¶

EditTools

FeatureIdsToExclude¶

public Collection<string> FeatureIdsToExclude { get; }

Property Value¶

Collection<string>

QueryTools¶

public QueryTools QueryTools { get; protected set; }

Property Value¶

QueryTools

MaxRecordsToDraw¶

public int MaxRecordsToDraw { get; set; }

Property Value¶

int

FeatureSource¶

public FeatureSource FeatureSource { get; set; }

Property Value¶

FeatureSource

DrawingQuality¶

public DrawingQuality DrawingQuality { get; set; }

Property Value¶

DrawingQuality

ZoomLevelSet¶

public ZoomLevelSet ZoomLevelSet { get; set; }

Property Value¶

ZoomLevelSet

LabelDisplayMode¶

public LabelDisplayMode LabelDisplayMode { get; set; }

Property Value¶

LabelDisplayMode

DrawingMarginInPixel¶

public float DrawingMarginInPixel { get; set; }

Property Value¶

float

RequestDrawingInterval¶

public TimeSpan RequestDrawingInterval { get; set; }

Property Value¶

TimeSpan

Name¶

public string Name { get; set; }

Property Value¶

string

IsOpen¶

public bool IsOpen { get; }

Property Value¶

bool

IsVisible¶

public bool IsVisible { get; set; }

Property Value¶

bool

DrawingTime¶

public TimeSpan DrawingTime { get; protected set; }

Property Value¶

TimeSpan

DrawingExceptionMode¶

public DrawingExceptionMode DrawingExceptionMode { get; set; }

Property Value¶

DrawingExceptionMode

Background¶

public GeoColor Background { get; set; }

Property Value¶

GeoColor

Transparency¶

public float Transparency { get; set; }

Property Value¶

float

BlueTranslation¶

public float BlueTranslation { get; set; }

Property Value¶

float

RedTranslation¶

public float RedTranslation { get; set; }

Property Value¶

float

GreenTranslation¶

public float GreenTranslation { get; set; }

Property Value¶

float

KeyColors¶

public Collection<GeoColor> KeyColors { get; }

Property Value¶

Collection<GeoColor>

IsNegative¶

public bool IsNegative { get; set; }

Property Value¶

bool

IsGrayscale¶

public bool IsGrayscale { get; set; }

Property Value¶

bool

ThreadSafe¶

public ThreadSafetyLevel ThreadSafe { get; set; }

Property Value¶

ThreadSafetyLevel

ColorMappings¶

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

Property Value¶

Dictionary<GeoColor, GeoColor>

WrappingMode¶

public WrappingMode WrappingMode { get; set; }

Property Value¶

WrappingMode

WrappingExtent¶

public RectangleShape WrappingExtent { get; set; }

Property Value¶

RectangleShape

Constructors¶

OgcApiProgressiveFeatureLayer()¶

OgcApiFeaturesLayer Constructor.

public OgcApiProgressiveFeatureLayer()

OgcApiProgressiveFeatureLayer(string, string, int)¶

OgcApiFeaturesLayer Constructor

public OgcApiProgressiveFeatureLayer(string url, string collectionId, int bulkSize)

Parameters¶

url string
The url of OGC API Features server.

collectionId string
The collection ID in the OGC API Features server.

bulkSize int
The bulk size of the features the layer will fetch and draw each time

Remarks:

The parameters can not be null.

Methods¶

GetLayers()¶

Get layer names(collection ids) from the OGC API Features Layer.

public Collection<string> GetLayers()

Returns¶

Collection<string>
The collection represent layer names(collection ids).

GetProgressiveFeaturesCore(RectangleShape, int)¶

Streams batches of features from the OGC API Features service.

protected IAsyncEnumerable<Collection<Feature>> GetProgressiveFeaturesCore(RectangleShape boundingBox, int bulkSize)

Parameters¶

boundingBox RectangleShape
The bounding box used to constrain the feature query.

bulkSize int
The number of features to retrieve in each batch.

Returns¶

IAsyncEnumerable<Collection<Feature>>
An asynchronous enumerable delivering collections of features.

Events¶

SendingWebRequest¶

Occurs before a web request is sent to the OGC API Features server.

public event EventHandler<SendingWebRequestEventArgs> SendingWebRequest;

SentWebRequest¶

Occurs after a web request has been sent to the OGC API Features server.

public event EventHandler<SentWebRequestEventArgs> SentWebRequest;

DrawingFeatures¶

public event EventHandler<DrawingFeaturesEventArgs> DrawingFeatures;

DrawingWrappingFeatures¶

public event EventHandler<DrawingWrappingFeaturesFeatureLayerEventArgs> DrawingWrappingFeatures;

DrawingProgressChanged¶

public event EventHandler<DrawingProgressChangedEventArgs> DrawingProgressChanged;

RequestedDrawing¶

public event EventHandler<RequestedDrawingLayerEventArgs> RequestedDrawing;

RequestingDrawing¶

public event EventHandler<RequestingDrawingLayerEventArgs> RequestingDrawing;

DrawingException¶

public event EventHandler<DrawingExceptionLayerEventArgs> DrawingException;

DrawnException¶

public event EventHandler<DrawnExceptionLayerEventArgs> DrawnException;