---
title: "Linear Extrusion"
slug: "cyclone-3dr-extrudedmeshlinearc"
updated: 2026-09-07T11:51:23Z
published: 2026-09-07T11:51:23Z
canonical: "rcdocs.leica-geosystems.com/cyclone-3dr-extrudedmeshlinearc"
---

> ## 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.

# Linear Extrusion

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

This command creates 3D mesh(es) of profile(s) extruded along a direction, with a given length.

> [!TIP]
> ### Requirements
> 
> Select one or several profiles or group of profiles (polyline, trajectory, CAD wire, CAD curve or linear geometry) and launch the command.

1. Enter the **Extrusion length**
2. Choose the **Extrusion direction**. It can be achieved in 2 ways:
  1. manually enter the direction by specifying every X, Y and Z axis values
  2. click on ![Normal1.svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Normal1.svg) to define a direction
3. Check **Close extremities**, if you want a closed mesh as output (If at least one profile is not planar and / or not closed, the option is not available).