I recently had a problem when exporting a polygon topology with islands to an Arc Coverage. After some research and a few phone calls, I was told to use the new AutoCAD Map Extension, that it has a new item called MPolygons, and that they support island polygons. I have since downloaded this extension and been testing it. Yes, it supports island polygons correctly. I can convert my topology to MPolygons and export them to an Arc Coverage, getting correct topological polygons as they should be.
The problem that I have is the text ID's in the center of my polygons. Prior to this extension to export to a Coverage you would display the topology back to the drawing as closed polylines. Then you create an Object Data Table with one character field in it, to which you would generate links to using the enclosed text option to populate the object data table while also attaching the data to the polylines. After this you would export to a coverage and select the closed polylines with object data attached and tell it to use that object data in the export.
Now with the new AutoCAD Map Extension you convert the topology to MPolygons and export those to the coverage. The problem is that I can not link the text as object data to the MPolygons and therefore when I export I don't get my ID's. How can I link my text to the new MPolygons?