---
title: "From CAD Curve or Wire"
slug: "cyclone-3dr-polylinefrombsplinec"
updated: 2026-09-07T11:51:19Z
published: 2026-09-07T11:51:19Z
canonical: "rcdocs.leica-geosystems.com/cyclone-3dr-polylinefrombsplinec"
---

> ## 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 Curve or Wire

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

This command converts CAD linear (CAD Curve and/or CAD Wire) into polylines.

> [!TIP]
> ### Requirements
> 
> Select the CAD linear shapes you want to convert and launch the command.

1. In the **Options** settings, you can choose which discretization will be applied on your CAD shape, i.e. how fine the shape will be sampled into a discrete representation.
  1. If you choose **Current** deflection, then the deflection will be set from the current display.
  2. If you choose **Absolute** deflection, then the maximum deflection between the CAD model and the discretized shape will be below the chosen distance.
  3. If you choose **Adaptive** deflection, then the deflection will be different for each sub-element of the CAD model. The chosen ratio will be used as a guide to compute a local, adaptive deflection for each sub-element.

> [!WARNING]
> ### Notes
> 
> It is recommended to use an adaptive deflection as it requires less computational effort for an equivalent or better quality than an absolute deflection.