Select edges by length? Is it possible to select all edges with a specific length?

I have a very exotic problem. In a computer game model, there is audience projected on several billboards, and depending on a billboards width, I know the number of characters seen in that billboard.

I want to find out the approximate complete count of characters in the audience.

The problem is, that there are 4146 billboards, which I can't count by hand, but classify by their length at least, and then calculate it up:



Any way to select, for example, all the widest audience billboard edges seen on the terrace?
Yes.

Select an edge and press &#8679; ShiftG> Length. By default this will select all other edges with equal length to the active edge.
By adjusting the options in the redo panel (F6) or at the bottom of tool shelf (T), you can also select edges with greater or lesser lengths and compare lengths with a threshold to select edges that are not exactly the same length, but similar.



Once you have a partial selection on the billboards you want to select, you can select all geometry connected to the selection with &#9096; CtrlL. Or in the case of a plane, by switching to face select mode (&#9096; Ctrl&#8633; Tab) while holding &#9096; Ctrl.