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I have created a mapping file to migrate Shapefile polygons
into Smallworld GIS. Some of the polygons in the shapefile have coincident
geometries: basically a hole within the polygon that has a shared vertex point with the outer boundary of the polygon (these are legitimate holes and
I would like to preserve them upon import). When the mapping file encounters
these geometries, it will not import that polygon feature. I was wondering if
you had any suggestions on how to rectify?

@andrewortiz most GIS systems will reject a donut polygon that has the hole touching the shell. You can try the GeometryValidator with the parameter Attempt Repair = Yes to see if FME can help make your polygons compatible with Smallworld. This article might be of help: Invalid OGC Geometry Examples

@andrewortiz most GIS systems will reject a donut polygon that has the hole touching the shell. You can try the GeometryValidator with the parameter Attempt Repair = Yes to see if FME can help make your polygons compatible with Smallworld. This article might be of help: Invalid OGC Geometry Examples

@markatsafe that appears to have resolved my issue. Thanks so much!

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