Hi Felix, so re: lines and arcs - are you talking about exporting curves that are already made up of lines and arcs into the DXF files using line and arc DXF entities rather than a generic spline entity?
Or are you talking about also doing the process of taking a freeform spline curve and fitting it with lines and arcs?
That type of fitting process is not necessarily an easy thing to calculate well itself...
- Michael
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