Surface Manager Functions - ExtractSave PDFSave selected topicSave selected topic and subtopicsSave all topicsShareShare to emailCopy topic URLLast UpdatedNov 28, 20241 minute readEngineeringE3D DesignE3D Design 3.1 The extract functions are used to extract curves. Related LinksExtract CurveExtract Curves from PrimitiveAll CurvesBoundary CurvesKnuckle CurvesIn X,Y or Z-planes