---
title: "From CAD Surface"
slug: "cyclone-3dr-bsplineedgesfromcadsurfacec"
updated: 2026-09-07T11:51:31Z
published: 2026-09-07T11:51:31Z
canonical: "rcdocs.leica-geosystems.com/cyclone-3dr-bsplineedgesfromcadsurfacec"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://rcdocs.leica-geosystems.com/llms.txt
> Use this file to discover all available pages before exploring further.

# From CAD Surface

![CmdCADCurveFromCADSurface.svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/CmdCADCurveFromCADSurface.svg)

This command extracts free borders from [surfacic CAD Object(s)](/v1/docs/cyclone-3dr-reverseeng) as CAD Curves.

> [!TIP]
> ### Requirements
> 
> Select the surfacic CAD object(s) you want to extract edges from.

---

> [!NOTE]
> ### Technical information
> 
> Free borders can be inner restriction (hole) and natural border (or external restriction if the external border is restricted).