====== Contour Lines ====== 

This page describes how use the extension "Contour Lines" in the Orbit desktop.

The "Contour Lines" extension makes it possible to create a dataset with contour lines from a point cloud dataset.

{{orbitgis:how_to_find.png?25&nolink|}} [[112:orbit_desktop:workspace:toolbar|Main Toolbar]] > Extensions > Contour Lines

==== Concepts ====

{{  mapping:desktop:feature_extraction:contour_lines_sidebar.png?nolink}}


**Contour lines vector file**\\
Creating a contour lines dataset based on an [[112:technologies:resources:lidar:opc|]] produces a vector file containing contour lines with a consecutive distance. \\
The target dataset can easily be exported to any [[112:technologies:resources:index|supported vector format]].

**TIN**\\
Creating a TIN (Triangular Irregular Network) dataset from the pointcloud will improve calculation time.

**Files & folders**\\
All created files and folders are saved in a new folder <name-of-opc-file>.profiles next to the [[112:technologies:resources:lidar:opc|]] file.

==== Sidebar ====

=== Configure ===

**File**\\
Displays the [[112:orbit_desktop:datasetlist:operations#active dataset]] if it concerns an [[112:technologies:resources:lidar:opc|]] on which the contour lines while be creating when pressing **Create**.

**Caluclating with TIN**\\
Flagbox to create a TIN dataset from the pointcloud. The contour lines will be calculated on this TIN dataset (improved calculation time).

**Step**\\
Adjust consecutive distance of the contour lines (in metres).