---
title: Contour Line and Slope Classification in 3D View
description: "Starting from MiTS 3.3, users are able to set the colors of the contour line and the slope range according to preference in the 3D View. ## Contour Line Based on Z-Level To activate the contour line in 3D view,…"
url: "https://mes100.com/docs/contour-line-and-slope-classification-in-3d-view/"
updated: "2026-10-12"
category: Modelling Techniques / Earthwork
---

# Contour Line and Slope Classification in 3D View

Starting from MiTS 3.3, users are able to set the colors of the contour line and the slope range according to preference in the 3D View.

## Contour Line Based on Z-Level

To activate the contour line in 3D view, go to **Integration > 3D > RHS Tab (3D View) > Tick the layer Contour**.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/04/image2-1.png?w=1080&ssl=1)

To change the z-level range table or the color for each range, go to **Options > Project Settings > Earthworks > Terrain Analysis > Z-Level Contour Categories**.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/04/image3-1.png?w=1080&ssl=1)

## Slope Classification Based on Gradient

To activate the slope classification in 3D view, go to **Integration > 3D > RHS Tab (3D View) > Tick the layer OGLSlopeClassification**. We also provide the info of original terrain excluding the platform for each of the gradient ranges under the **NetGLSlopeClassification** layer.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/04/image1-1.png?w=1080&ssl=1)

To change the gradient range table or the color for each range, go to **Options > Project Settings > Earthworks > Terrain Analysis > Slope Classification Parameters > Equal Gradient Parameters**.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/04/image4-1.png?w=1080&ssl=1)

To classify the slopes in a 2D view with an area table per gradient class, for the original ground or after development, see [Slope Classification](/docs/slope-classification/).

### *Related*

 [![](https://i0.wp.com/mes100.com/wp-content/uploads/2024/10/me-small.jpg?resize=100%2C100&ssl=1)](https://mes100.com/author/admin/)[Ngu Soon Hui](https://mes100.com/author/admin/)

I’m the [Benevolent Dictator for Life](https://en.wikipedia.org/wiki/Benevolent_dictator_for_life) for MiTS Software cum Editor of this website. Read more [here](/about-ngu-soon-hui/).

You can also contact me at soonhui@mes100.com