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    DonutHoleExtractor

    Splits an area feature with holes into its component rings.

    输出端口

    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

    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 anfme_rejection_codeattribute with the valueINVALID_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, clickbeside the applicable parameter.For more information, seeTransformer Parameter Menu Options.

    Transformer Categories

    Geometries

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