−Table of Contents

ThinkGeo.MapSuite.Core.GroupLayer

Note: The page was created before Map Suite 10. Map Suite 10.0 organized many classes into new namespaces and assemblies as well as had a few minor breaks in compatibility. The majority of previously built code should work without modification assuming the new namespaces are added. For guidance on upgrading your existing code, please check out MapSuite 10 Upgrade Guide.

This class represents a Layer backed by a group of layers.

Inheritance Hierarchy

Members Summary

Public Constructors

GroupLayer()

This is the default constructor for the class.

Remarks

This is the default constructor. If you use this constructor, then you need to set the required properties manually.

Parameters

GroupLayer(IEnumerable<Layer>)

This is a constructor for the class.

Remarks

This constructor gets the layer ready to use.

Parameters

Protected Constructors

Public Methods

RequestDrawing()

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(RectangleShape)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(IEnumerable<RectangleShape>)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(TimeSpan)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(TimeSpan,RequestDrawingBufferTimeType)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(RectangleShape,TimeSpan)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(RectangleShape,TimeSpan,RequestDrawingBufferTimeType)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(IEnumerable<RectangleShape>,TimeSpan)

N/A

Remarks

N/A

Return Value
Parameters

RequestDrawing(IEnumerable<RectangleShape>,TimeSpan,RequestDrawingBufferTimeType)

N/A

Remarks

N/A

Return Value
Parameters

GetThreadSafetyLevel()

N/A

Remarks

N/A

Return Value
Parameters

CloneDeep()

N/A

Remarks

N/A

Return Value
Parameters

Open()

N/A

Remarks

N/A

Return Value
Parameters

Close()

N/A

Remarks

N/A

Return Value
Parameters

GetBoundingBox()

N/A

Remarks

N/A

Return Value
Parameters

Draw(GeoCanvas,Collection<SimpleCandidate>)

N/A

Remarks

N/A

Return Value
Parameters

ToString()

N/A

Remarks

N/A

Return Value
Parameters

Equals(Object)

N/A

Remarks

N/A

Return Value
Parameters

GetHashCode()

N/A

Remarks

N/A

Return Value
Parameters

GetType()

N/A

Remarks

N/A

Return Value
Parameters

Protected Methods

OpenCore()

This method opens the Layer so that it is initialized and ready to use.

Remarks

This abstract method is called from the concrete public method Open. The open method plays an important role, as it is responsible for initializing the Layer. Most methods on the Layer will throw an exception if the state of the Layer is not opened. When the map draws each layer, it will open the layer as one of its first steps; then, after it is finished drawing with that layer, it will close it. In this way, we are sure to release all resources used by the Layer. When implementing the abstract method, consider opening the FeatureSource or RasterSource. You will get a chance to close these in the Close method of the Layer.

Return Value
Parameters

CloseCore()

This method closes the FeatureSource and releases any resources it was using.

Remarks

This abstract method is called from the concrete public method Close. The close method plays an important role in the life cycle of the Layer. It may be called after drawing to release any memory and other resources that were allocated since the Open method was called. If you override the Core version of this method, it is recommended that you take the following things into account: This method may be called multiple times, so we suggest you write the method so that that a call to a closed Layer is ignored and does not generate an error. We also suggest that in the Close you free all resources that have been opened. Remember that the object will not be destroyed, but will be re-opened possibly in the near future.

Return Value
Parameters

GetBoundingBoxCore()

This method returns the bounding box of the Layer.

Remarks

This method returns the bounding box of the Layer.

Return Value
Parameters

DrawCore(GeoCanvas,Collection<SimpleCandidate>)

This method draws the Layer.

Remarks

This abstract method is called from the concrete public method Draw. This method draws the representation of the layer based on the extent you provided. When implementing this abstract method, consider each feature and its column data values. You can use the full power of the GeoCanvas to do the drawing. If you need column data for a feature, be sure to override the GetRequiredColumnNamesCore and add the columns you need to the collection. In many of the styles, we add properties to allow the user to specify which field they need; then, in the GetRequiredColumnNamesCore, we read that property and add it to the collection.

Return Value
Parameters

OnRequestedDrawing(RequestedDrawingLayerEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

OnRequestingDrawing(RequestingDrawingLayerEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

GetThreadSafetyLevelCore()

N/A

Remarks

N/A

Return Value
Parameters

CloneDeepCore()

N/A

Remarks

N/A

Return Value
Parameters

DrawException(GeoCanvas,Exception)

N/A

Remarks

N/A

Return Value
Parameters

DrawExceptionCore(GeoCanvas,Exception)

N/A

Remarks

N/A

Return Value
Parameters

OnDrawingException(DrawingExceptionLayerEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

OnDrawnException(DrawnExceptionLayerEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

DrawAttributionCore(GeoCanvas,String)

N/A

Remarks

N/A

Return Value
Parameters

OnDrawingAttribution(DrawingAttributionLayerEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

OnDrawnAttribution(DrawnAttributionLayerEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

OnDrawingProgressChanged(DrawingProgressChangedEventArgs)

N/A

Remarks

N/A

Return Value
Parameters

Finalize()

N/A

Remarks

N/A

Return Value
Parameters

MemberwiseClone()

N/A

Remarks

N/A

Return Value
Parameters

Public Properties

Layers

This property gets the layers you want to use.

Remarks

This property gets the layers you want to use.

Return Value

HasBoundingBox

This property checks to see if 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. In GroupLayer, we override this API and mark it as true.

Remarks

The default implementation in the base class returns false.

Return Value

RequestDrawingInterval

N/A

Remarks

N/A

Return Value

IsOpen

N/A

Remarks

N/A

Return Value

DrawingTime

N/A

Remarks

N/A

Return Value

Name

N/A

Remarks

N/A

Return Value

Attribution

N/A

Remarks

N/A

Return Value

IsVisible

N/A

Remarks

N/A

Return Value

Transparency

N/A

Remarks

N/A

Return Value

BlueTranslation

N/A

Remarks

N/A

Return Value

RedTranslation

N/A

Remarks

N/A

Return Value

GreenTranslation

N/A

Remarks

N/A

Return Value

KeyColors

N/A

Remarks

N/A

Return Value

IsNegative

N/A

Remarks

N/A

Return Value

IsGrayscale

N/A

Remarks

N/A

Return Value

DrawingExceptionMode

N/A

Remarks

N/A

Return Value

Protected Properties

IsOpenCore

N/A

Remarks

N/A

Return Value

Public Events

RequestedDrawing N/A

Remarks

N/A

Event Arguments:RequestedDrawingLayerEventArgs

RequestingDrawing N/A

Remarks

N/A

Event Arguments:RequestingDrawingLayerEventArgs

DrawingProgressChanged N/A

Remarks

N/A

Event Arguments:DrawingProgressChangedEventArgs

DrawingException N/A

Remarks

N/A

Event Arguments:DrawingExceptionLayerEventArgs

DrawnException N/A

Remarks

N/A

Event Arguments:DrawnExceptionLayerEventArgs

DrawingAttribution N/A

Remarks

N/A

Event Arguments:DrawingAttributionLayerEventArgs

DrawnAttribution N/A

Remarks

N/A

Event Arguments:DrawnAttributionLayerEventArgs