Terrains

This is the first chapter to create and work with terrains in Lands Design. The commands to create and edit terrains can be found at the Terrain toolbar, under the Terrain icon in the Lands Objects toolbar:

Lands Terrain Toolbar

All these commands can be also found at the Edit Panel > Edit Area, after selecting a terrain object.

3.1 Elevate curves

(Download the Bamboo_Park_Tutorial_3.1.3dm file in order to start the tutorial from this chapter.)

Lands terrains can be created from curves or point clouds. In this case you can generate the curves to create the terrain and elevate them the Elevate Curves command.

Fig 1. Offset curves selected

Fig 1. Offset curves selected


1. Generate the curves for the terrain input data

  1. Run the _Offset command Offset and from the command line, set the Offset distance to 3m.
  2. Click inside the area of the terrain boundary to generate the offset in that direction
  3. Repeat this operation 6 more times until you get a few offseted curves, as shown in Fig 1.
  4. Insert the curves in a new layer Guidelines > Terrain elevation curves.


2. Elevate the curves

Fig 2. Elevate Curves dialog

Fig 2. Elevate Curves dialog

Turn the "level curves" on. Hide or lock the layers "Guidelines" and "Zoning" so their content don't interfere in the execution of this command.

  1. Run the Elevate Curves command (_laElevateCurves laElevateCurves). The Elevate Curves dialog will appear. (Fig. 2)
  2. Enter the Start dimension (0.0m) and Increment (0.5m) values.
  3. Click on the Draw Line button. The dialog will be hidden momentarily.
  4. Draw a line in the model that goes across the curves you want to elevate, as indicated in Fig. 3
  5. The Elevate Curves dialog will be back. Click the Apply button to see the changes and close the dialog.



Fig.3. Only the curves that cross the Line will be elevated

Fig.3. Only the curves that cross the Line will be elevated

Repeat the command if you need to change the increment interval among curves or the lower elevation of the first curve.