2D boundary offset is -- in mathematical terms -- the construction of a boundary
at a given distance from a specified open or closed boundary.
In the image above, the red boundary has been offset numerous times to produce the green
2D boundary offset is all around us. Cabinet trim,
picture frames, streets and highways, art designs, landscaping, bottle labels,
and neon signs all use boundary offset. If you look around you, without a doubt,
you will find other things which were made using a boundary offset calculation.
Constructing an offset boundary by hand is not that difficult.
What is difficult is getting a computer to do it reliably.
The little floating point round-offs that don't bother us humans cause computer programs
to trip and fall face-first on their little flat-panel screens.