ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
ThinkGeo Cloud
ThinkGeo UI Controls
ThinkGeo Open Source
Help and Support
External Resources
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 is use for Open Street Map Layer, and you also can get map from open street map server.
The constructor initilizes the properties. WebProxy is set to null.
This constructor initializes a new layer and assgin a web proxy.
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RequestDrawing(RectangleShape,TimeSpan)
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RequestDrawing(RectangleShape,TimeSpan,RequestDrawingBufferTimeType)
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RequestDrawing(IEnumerable<RectangleShape>,TimeSpan)
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RequestDrawing(IEnumerable<RectangleShape>,TimeSpan,RequestDrawingBufferTimeType)
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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, the layer will be opened 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.
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 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.
This method is the concrete wrapper for the abstract method DrawCore. 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 that allow the user to specify which field they need; then, in the GetRequiredColumnNamesCore, we read that property and add it to the collection.
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DrawExceptionCore(GeoCanvas,Exception)
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OnDrawingException(DrawingExceptionLayerEventArgs)
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OnDrawingAttribution(DrawingAttributionLayerEventArgs)
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get or set a OpenStreetMapLayerPictureFormat object
Gets or sets a value represents the request timeout from the OpenStreetMap server.
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This property gets or sets the proxy used for requesting a Web Response.
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Event Arguments:DrawnAttributionLayerEventArgs