Make Single-Part Linestrings

As mentioned previously, UE4 uses a single continuous line (Single-Part Linestring) to create each individual landscape spline. It doesn’t understand multi-part linestrings (where a vector line doesn’t have to be continuous), so TerraForm doesn’t import them.

The last thing we need to do is make sure all the vectors are single-part linestrings.

Step 1

• On the main menu, select Vector > Geometry Tools > Multipart to Singleparts…

In the Multipart to Singleparts window:

• Set Input Layer to the rail vector layer.
• Click the … button to the right of the Single Parts field and select Save to File…, then navigate to your source data folder and give the file a name.

Step 2

• Repeat Step 1 for the other vector lines you’re going to use to create landscape splines.
• Remove layers you’ve converted from the layers panel.