I am interested in having MapSuite return a static image instead of a the map control, similar to how google static maps API works.
Basically I would like to compile a few different layers on the server side, save as an static image and stream it back to the browser. I think this should be possible using some of the functions from the printing features, but I am looking for some guidance to get this working.
The goal would be to be able to reference a map with an image tag.
Hi Kevin,
I had the same problem when building a WMS-like server.
Your code needs to work along these lines:
Function RenderMapLayers(...) As Bitmap
Dim res As Bitmap = Nothing
Try
Dim myGeoImage As GeoImage = GdiPlusGeoCanvas.CreateGeoImage(mapWidth, mapHeight)
Dim myGdiPlusGeoCanvas As GdiPlusGeoCanvas = New GdiPlusGeoCanvas()
myGdiPlusGeoCanvas.BeginDrawing(myGeoImage, mapExtent, GeographyUnit.Meter)
For Each ovl In Map1.CustomOverlays
If TypeOf ovl Is LayerOverlay Then
For Each lyr In ovl.Layers
SyncLock lyr
lyr.Draw(myGdiPlusGeoCanvas, New Collection(Of SimpleCandidate)())
End SyncLock
Next
End If
Next
myGdiPlusGeoCanvas.EndDrawing()
Dim ImageBytes = GdiPlusGeoCanvas.ConvertGeoImageToMemoryStream(myGeoImage).ToArray()
Dim ms As New MemoryStream(ImageBytes)
res = New Bitmap(ms)
ms.Dispose()
Catch ex As Exception
End Try
Return res
End Function
HTH
Hello Lars I,
Thanks for your help and code.
Hello Kevin,
Does this helped, if you still meet problems, please let us know.
Regards,
Gary