# Copy of Extract Mesh Part ##

Extract Mesh Edges The ExtractMeshEdges command separates edges from the parent mesh determined by an angle between mesh face normals. The command may help if you have a mesh that came from a polysurface but no longer have the polysurface. Using the command with the Unwelded option creates polyline approximations of where the edges of the polysurface were. ### Command-line options **Extract edges by** * **Unwelded:** Extracts edges with coincident vertices. * **Break angle:** Extracts edges based on the angle between the face normals of adjacent faces. **Greater than:** Specifies the minimum break angle. **Less than:** Specifies a maximum break angle **Increment:** Sets the amount the value changed by each arrow click. * **Naked:** Extracts the edges that have only one face associated. * **Join results:** Creates polylines from the extracted line segments. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.rhinoartisan.com/commands/mesh/extract-mesh-faces/copy-of-extract-mesh-part.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.