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DonutHoleExtractor

Splits an area feature with holes into its component rings.

Output Ports

ClosedOutershell

The outer boundary polygon is separated from the holes and output to this port. If an area had no holes, it is output untouched.

ClosedHole

The individual holes are output as polygons.

Closed<Rejected>

Features with invalid geometry will be output through this port. Valid geometries are polygon, ellipse, donut, multiarea, or aggregates containing at least one of these types.

Rejected features will have an fme_rejection_code attribute with the value INVALID_GEOMETRY_TYPE.

Each output feature has all the attributes of the original area feature.

Parameters

None.

Example

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Transformer Categories

Geometries

Technical History

Associated FME function or factory: DonutHoleFactory

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