stretch_free_boundaries Last update: 29.04.2026 SurfaceUtilities.stretch_free_boundaries(face_zonelet_ids, params) Stretch free boundaries of each zonelet. Parameters: face_zonelet_ids Ids of face zonelets. params Parameters to control stretch free boundaries operation. Returns: StretchFreeBoundariesResults Returns the StretchFreeBoundariesResults. Return type: StretchFreeBoundariesResults Examples >>> result = surf_utils.stretch_free_boundaries(face_zonelet_ids, params)