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All,I spent all day yesterday continuing to investigate. I did not find anything within MapInfo Pro; however, I have found a solution within SQL Server (only). So, if you were hoping for a MapBasic solution, I do not have that one yet. I am able to do the following with SQL Server:
1. Upload my dataset(s) in SQL Server (uploaded through EasyLoader software)2. Run SELECT statements on the GEOMETRY field3. Use STBoundary() functionIf I have any luck with Map Basic I'll be sure to update this thread.
The MapBasic equivalent to the "Convert Polygons to Polylines" option is ConvertToPline(), which can accept a region object as the sole parameter and returns the polyline version. You can update a whole table programmatically with:
update yourTable set obj = converttopline(obj)
If you're table is quite large, it may be worth issuing the following statement first, which will disable undo and make direct writes to the table.
set table yourTable fastedit on undo off
Hope that helps.