What an advanced operation should hand back: a wire, meaning the outline only; a face, meaning
the outline filled; or a solid, meaning the face given thickness. Choosing the lightest form you
actually need keeps the result cheap - ask for a wire if you are only going to offset or pattern
it, and only ask for a solid when the shape has to be manufactured or booleaned.
What an advanced operation should hand back: a wire, meaning the outline only; a face, meaning the outline filled; or a solid, meaning the face given thickness. Choosing the lightest form you actually need keeps the result cheap - ask for a wire if you are only going to offset or pattern it, and only ask for a solid when the shape has to be manufactured or booleaned.