---
title: "Geometric Registration"
slug: "cyclone-3dr-geometricregistrationc"
updated: 2026-09-07T11:51:31Z
published: 2026-09-07T11:51:31Z
canonical: "rcdocs.leica-geosystems.com/cyclone-3dr-geometricregistrationc"
---

> ## 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.

# Geometric Registration

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

This command moves the selected object using a coordinate system, which is fitted on the current coordinate system. The departure coordinate system to move is defined by geometrical elements (point(s), line(s), and plane(s), just like the command [Define UCS](/v1/docs/cyclone-3dr-defineucsc), however here, the objects will move.

> [!TIP]
> ### Requirements
> 
> Select the entities to move before entering in the command. A new dashed line coordinate system is automatically drawn in the graphic zone. By default, the new coordinate system is initialized at the same place as the existing coordinate system but this position will be updated in real time according to the parameters you enter in the dialog box.

1. **Compute a new alignement**. With this option, you have to define the following:
  1. **Change the origin** of the coordinate system by defining first its translation. You can define the departure point (source) with the button ![AddPoint (1).svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/AddPoint%20(1).svg) and then the arrival point (destination) with the button ![AddPoint2 (1).svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/AddPoint2%20(1).svg) . For both points the software will ask you to enter a point (see [Define points](/v1/docs/cyclone-3dr-enteringpointprocedure)). Once you have input a point, you may use the fields X, Y and Z next to the corresponding button, which represent the new coordinate values of the entered point.
  2. Select the axis X, Y or Z corresponding respectively to:
    1. **The main axis**, which corresponds to the orange color in the dialog box. The orientation you give to this axis will always be respected. This direction can be changed by clicking on button ![Normal2 (1).svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Normal2%20(1).svg) . (see [Define Normal Direction](/v1/docs/cyclone-3dr-definenormaldirection))
    2. **The second axis**, which corresponds to the blue color in the dialog box. The orientation you give to this axis is respected only if it is perpendicular with the first. Else, the software will evaluate the best (nearest) axis corresponding to the direction you enter. This direction can be changed by clicking on button ![Normal1 (1).svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Normal1%20(1).svg) . (see [Define Normal Direction](/v1/docs/cyclone-3dr-definenormaldirection))
  3. The third axis will be determined **automatically** to make a perpendicular coordinate system X’Y’Z’
2. **Replay last alignment** / **Replay reverse of last alignment** With this option, you can apply on the selected objects either the last matrix, either the reverse of the last computed matrix.

Two additional options are available:

- **Save matrix**: the matrix will be saved in a text file
- **Update coordinate system n°**: When connected to a laser arm, this option allows to create or update the coordinate system the arm will use for the next measurements (commands [Measure through RDS](/v1/docs/cyclone-3dr-throughrdsc), [Probe Feature](/v1/docs/cyclone-3dr-probefeaturec)).

Select the coordinate system number with the the arrow (up and down). You can define up to 9 coordinate systems. If a matrix already exists for the selected coordinate system, you can either:
  - **Free** so that this coordinate system is purely and simply deleted and replaced by this new alignment matrix.
  - Combine the existing matrix with this new alignment.