Make DTM: Select Boundary Strings

To access this wizard:

Click Next on the Select Points and Strings screen of the Make DTM wizard.

The Select Boundary Strings screen is shown during DTM creation and is used to select the boundary string or strings to constrain the outer bounds of the output wireframe surface.

This screen is only shown if:

Use boundary strings is checked on the General Options screen, and;
String data is selected on the Select Points and Strings screen.

Only closed strings can be used. If selected, boundary strings limit the extent of the DTM, but do not contribute to the DTM itself. Where this is required, the strings should be selected in both the Select DTM Points and String, and this screen.