Align streets to terrain

You can use the Align streets to terrain tool to align graph networks to a terrain (map layers with the elevation attribute defined) or to the y=0 level. You can access the tool in the following ways:

• Click the Align streets to terrain tool on the main toolbar.
• Click Graph > Align streets to terrain in the main menu.

Non-aligned graph network

Graph network aligned to a terrain.

Settings

The following parameters control the alignment:

Align function	The alignment function to apply to the nodes of the graph. Project All—Projects all nodes onto the terrain. Project Below—Projects the nodes located below the terrain only.
Terrain	The terrain to align the graph. All map layers with an elevation attribute plus the y=0 level are listed here.
Offset	The offset to add after alignment to the y-coordinate of the nodes.