> For the complete documentation index, see [llms.txt](https://docs.dietrichs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dietrichs.com/dietrichs-intelligent-documentation/docs-de-en/2d-auxiliary-geometry/texte-beschriftungen/langenermittlung.md).

# Length determination

This function can determine the length of open and closed polylines. The elements of the polyline may intersect.