Map Editor automation?

[jfcorbett]

Is there any way to script/automate the Map Editor's functionality? I'm mainly interested in clipping maps into various shapes and sizes, as is possible in the WAsP Map Editor.

Any alternative suggestions are also welcome!

[Ray]

Hi,

Map Editor does not provide any automation features. You could however achieve map clipping through WAsP scripting. The IVectorMap interface provides a CutWindow method which will do the trick.

Here is some sample code that will clip the selected map (I used Waspdale) in WAsP.

Set Rvea0086Factory = CreateObject("Rvea0086.ObjectFactory")

Set Map = ReportingAssistant.TypeCaster_
  .CastMemberToVectorMap(ReportingAssistant.SelectedHierarchyMember)
Set Rect = Rvea0086Factory.CreateRectangle(25000, 35000, 30000, 40000)
Set ClippedMap = Map.CutWindow(Rect)

You could of course then export the map to file and even add it back into the workspace:

' export map to file
MapFilename = "C:\WaspdaleClipped.map"
Set Exportable = ReportingAssistant.TypeCaster.CastObjectToRveaPreservableObject(ClippedMap)
Exportable.PreserveToFile MapFilename

' add map to workspace 
Set InsertedMap = CurrentWorkspace.AsIHierarchyMember_   
  .Insertions.FromFile.ByClassID(ehmcVectorMap).Execute(MapFilename, Nothing)

[jfcorbett]

Aha! Thanks for this answer.

I don't suppose there's any way to clip it in an ellipse or some other shape?

[Ray]

Ellipse clipping is a nice idea. Unfortunately, however, this cannot be done with WAsP.

[jfcorbett]

Is there a way to transform the projection of .maps in an automated/scripted way?

Fairly often, I have to convert a large number of .map files back and forth between metric and lat-lon, in order to interface with other applications e.g. Google Earth. Being able to script this would be a huge relief.