---
title: "Profile Extraction-Prepare"
slug: "cyclone-3dr-profileextractionpreparec"
updated: 2026-09-07T11:51:23Z
published: 2026-09-07T11:51:23Z
canonical: "rcdocs.leica-geosystems.com/cyclone-3dr-profileextractionpreparec"
---

> ## 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.

# Profile Extraction-Prepare

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

This step sets up the objects for the rest of the Profile Extraction workflow.

1. **Curvilinear distances**: choose whether the distances entered are expressed in 2D (only taking into account X and Y coordinates), or in 3D (X, Y, Z).
2. **Offset**: value added to the position of the section.
3. **Prefix**: choose the prefix for the distance information. For example, distances can be given with the prefix "MP" for "Milepost".
4. **Section orientation**: choose to create sections in vertical planes or in planes locally perpendicular to the axis.

> [!WARNING]
> ### Notes
> 
> When using an alignment:
> 
> - The **Curvilinear distances** are automatically set to 2D.
> - The **Offset** is defined automatically according to the alignment stations.