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Replaces an area feature with its medial axis or a straight skeleton. This transformer works best with long, narrow areas.

Output Ports


Usage Notes

  • Unexpected output may result if input polygons self-intersect or have duplicate vertices.
  • Because Z coordinates are not considered in either algorithm, all features processed by this function are forced to 2D.
  • If non-area features are passed to this transformer, they will not be changed, and they are logged with a warning.
  • Donuts that contain holes that touch will produce incorrect output.

  • If vertices are very close together unexpected output may occur.




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


Related Transformers

When combined with the Tester, this transformer enables FME to perform area generalization operations.


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Tags Keywords: abstraction simplification simplify centerline centreline CentreLineReplacer