fdo_type: fdo_curvepolygon
Features with an fdo_type of fdo_curvepolygon contain polygons with inner and outer boundaries defined by curve segments. A curve segment may be a circular arc segment or a linear line segment. A curvepolygon may or may not have inner boundaries that define a hole in the polygon.
If the destination FDO Provider does not support writing Curvepolygons, then any arc segments in the polygon will be stroked, and the geometry will be written as a regular (line) polygon.