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

> ## 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.

# Slice Definition

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

Slice Definition is the first step of Scan to Plan workflow. This command creates thin slices from a point cloud which will be used to draw plans and elevations.

> [!TIP]
> ### Requirements
> 
> Select one or several clouds (or one Cloudworx cloud) and launch the command.

Set the **Resampling step** according to the expected level of details.

Select the slice creation **Mode**:

- **Quick slice** mode is suitable to define one slice in X, Y or Z direction.
- **Advanced** mode is suitable to define several slices in every possible directions.

**Quick slice mode**

1. Select the slice **Direction** and **Thickness**.
2. Click the slice position in the 3D scene: the slice content is automatically flattened and resampled to remove duplicated points.
3. Optionally, modify the slice position using the pencil button (or CTRL+SPACE). You will edit the corresponding **Limit Box**.
4. **Next** definitely validates the slice and opens the second step of the workflow: [Extract Plans](/v1/docs/cyclone-3dr-scantoplanextractplansc).
5. **Exit** definitely validates the slice and quits the workflow. Note you will be able to resume the workflow later.

**Advanced mode**

1. Select the slice **Direction** and **Thickness**.
2. Choose where to create the slices, two methods are available:
  1. **Regular** to have slices with a regular step. You can change the **Range** to **All over** or within a **Custom** range. Use **Pass through** option to offset the slices.
  2. **List of values** to specify the exact position of the desired slice(s).
3. Click on **Insert slices** to add them to the list of slices below.
4. Optionally, repeat steps from 1 to 4 to add slices according to another direction.
5. When the **Slices** list has been filled, you can visualize and edit them individually:
  1. Change their position and thickness thanks to the limit box.
  2. Optionally, rename them.
  3. When hovering over a slice, two buttons appear:
    1. A toggle to deactivate the limit box corresponding to the current slice to visualize the whole cloud.
    2. A cross to remove the slice.
  4. **Show all planes** displays all slices median planes. Click again to hide them.
6. Click on **Compute** to work out the slices. Slices are flattened and resampled to remove duplicated points.
7. Once the computation is done, **Reset** button removes the slices (if they have not been validated by **Next** or **Exit**).
8. **Next** definitely validates the slices and opens the second step of the workflow: [Extract Plans](/v1/docs/cyclone-3dr-scantoplanextractplansc).
9. **Exit** definitely validates the slices and quits the workflow. Note you will be able to resume the workflow later.

> [!WARNING]
> ### Notes
> 
> - Once a slice has been validated, the edition (such as renaming, limit box edition) is not possible.
> - Both modes are not compatible within the same workflow. Changing the mode will reset it.