2DArcReplacer

From Fmepedia

2DArcReplacer is a Workbench Transformer.

Replaces a feature with a two-dimensional arc using the supplied parameters.

In order to create a circle, set the sweep angle to 360 degrees and make sure the primary and secondary axes have the same length. This should be the radius of the circle. Alternatively, you can use the 2DEllipseReplacer.

Please note that this outputs an arc feature, which is not always supported by other transformers or output formats. You can use an ArcStroker to fix this.