---
title: "Options"
url: "https://help.maxon.net/c4d/en-us/Content/html/TOOLSPLINECHAMFER-MDATA_MAINGROUP.html"
section_path: "Spline Menu > Chamfer > Options"
element_id: "TOOLSPLINECHAMFER"
group_id: "MDATA_MAINGROUP"
description: "Radius defines the radius of the chamfer. If Flat is enabled, the chamfering is linear."
---

## Options

### Flat

Parameter ID: `MDATA_SPLINE_CHAMFERFLAT`

### Radius

Parameter ID: `MDATA_SPLINE_CHAMFERRADIUS` · Range: [0..+∞m]

Radius defines the radius of the chamfer. If Flat is enabled, the chamfering is linear.

To be more exact:

![Image: 003547.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/003547.jpg)\
Flat disabled — each new point has a tangent created to round the chamfer.

![Image: 003546.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/003546.jpg)\
Flat enabled — no tangents are created and the spline runs linearly between the two new points.