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ScaleBarAdornmentLayer : Sample code

#1

Can you give me a sample code to show how to use a ScaleBarAdornmentLayer?



#2

Le Sommer, 
  
 Here is a sample how to use it. 
  
 
winformsMap1.MapUnit = GeographyUnit.DecimalDegree 
winformsMap1.CurrentExtent = New RectangleShape(-90, 45R, 90, -45R) 
winformsMap1.MapBackground.BackgroundBrush = New GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean) 

Dim worldLayer As New ShapeFileFeatureLayer("…\SampleData\Data\Countries02.shp") 
worldLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.Country1 
worldLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20 
winformsMap1.StaticOverlay.Layers.Add(“WorldLayer”, worldLayer) 

’ Here also shows how to add a ScaleLineAdormentLayer. 
'ScaleLineAdornmentLayer scaleLineAdornmentLayer = new ScaleLineAdornmentLayer(); 
'winformsMap1.AdornmentOverlay.Layers.Add(“ScaleLineAdornmentLayer”, scaleLineAdornmentLayer); 

'Add a ScaleBarAdormentLayer. 
Dim scaleBarAdornmentLayer As New ScaleBarAdornmentLayer() 
winformsMap1.AdornmentOverlay.Layers.Add(“scaleBarAdornmentLayer”, scaleBarAdornmentLayer) 

winformsMap1.Refresh() 
 
  
 Thanks, 
  
 Ben 


#3

Thanks for this sample, it was what i have tried the first time.


This sample gives me an exception :

InvalidOperationException

The GeoCanvas is currently not drawing.  Please call the BeginDraw method before calling this method.


   à ThinkGeo.MapSuite.Core.x6d719af406ea4c2c.xbc32d22242378f5c(Boolean x1c27a8ea53684488)

   à ThinkGeo.MapSuite.Core.GeoCanvas.get_CurrentWorldExtent()

   à ThinkGeo.MapSuite.DesktopEdition.Overlay.Draw(GeoCanvas canvas)

   à ThinkGeo.MapSuite.DesktopEdition.xf0380b1a0bc40ca6.StartDraw()

   à ThinkGeo.MapSuite.DesktopEdition.x601a5561df898600.x7510a5c148e0acfd(Object x19b0b2213afc2289)

   à System.Threading._ThreadPoolWaitCallback.WaitCallback_Context(Object state)

   à System.Threading.ExecutionContext.runTryCode(Object userData)

   à System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)

   à System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

   à System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

   à System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)

   à System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object state)



#4

Le Sommer,


I think you are not using the latest version. One of our previous versions has cross threading issue which might lead to some strange problem. Please try the attached demo which works fine on my machine.


Thanks,


Ben

 



429-UseScaleBar.zip (15.2 KB)

#5

My version is "MapSuiteCore:3.1.4;DesktopEdition:3.0.184"


It will download the lasted version and retry



#6

OK, let me know if you find anything.

#7

With the last version "MapSuiteCore:3.1.19;DesktopEdition:3.0.199", my ScaleBarAdornmentLayer works perfectly


Thanks



#8

That’s great, let me know if you have any issues. 
  
 Ben