Clone Nonterrain Perimeter
Identify perimeter within current selection, and create copy of it.
Useful to quickly extract the valid perimeter from any selected group. Should work on any geometry except terrain.
Type: CloneMenu: Extensions > Landshape > Clone > Clone Nonterrain Perimeter
What Is a Perimeter?
A perimeter, sometimes also called Border, is a continuous, well-formed closed edgepath.
A well-formed perimeter should not contain gaps, overlaps, self-crossings.
A well-formed perimeter can be non-planar, and both convex and concave.
Perimeters are useful to limit the area of influence for Landshape commands. They are also useful for many other things.
Why Clone Perimeter?
The purpose of cloning the perimeter is to reuse the clone as input for other Landshape commands.
Also, it can be useful to check whether the current selection in fact has a valid perimeter.