Align streets to terrain

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

• Click the Align streets to terrain tool in 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.