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Spline Tool

The Spline Tool is the primary tool for creating and laying out roads. It allows for creation and manipulation of the 2D reference curve that the road layout is based on.

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Create a New Road​

Click the Spline Tool button.

  • If another road is already selected, click away from any road to unselect it.
  • Optionally, click the desired road style in the Bottom Sheet to build a road of a particular style. If no road style is picked, a basic default style will be used. For more information about road styles, see Road Style Assets.
  • Right-click at the location you want to start a new road.
  • Right-click additional times to create additional road control points to extend and shape the road.

Move Road Control Point​

Click the Spline Tool button.

  • Click the road you want to edit. The road is highlighted, and the control points are displayed and connected by cyan lines.
  • Click and drag the desired control point to move it.

Insert New Control Point Within Existing Road​

Click the Spline Tool button.

  • Click the road you want to edit.
  • Move the mouse cursor over the cyan control line at the location you want to insert a node.
  • Right-click to insert a new node within the control line of the road.

Shift Road Using Control Line​

You can shift a single road on the editing canvas using a control line.

  • Click the Spline Tool button.
  • Click the road you want to shift. The road is highlighted, and the control points are displayed and connected by cyan control lines.
  • To shift the entire road, drag one of the control lines. While dragging the cyan line, the canvas displays a preview of the shifted road as a red outline. Note that the road mesh does not move until you release the control line.