Each block covers 512 arrivals, and no fixed amount of time

Each block covers 512 arrivals, and no fixed amount of time

Every block of a 4,096-arrival window in 8 blocks, over 20,000 arrivals of the a rate that rises and falls process at 100 Hz. The flat line is the same structure over an evenly spaced stream at the same mean rate, where every block is 5.1 s because the arrivals are equally spaced by construction. The drifting stream's blocks run from 565 ms to 14.8 s, a factor of 26.1, and the structure cannot tell: it is counting arrivals.

Drawn at 700 × 352, wide on the page. Everything above is what window-resolution returns with no arguments; the caption is the generator's own, computed from the numbers in the drawing rather than written beside it.

3 essays call window-resolution. The drawing above is what it returns with no arguments at all; every call below passes it something, because a placement that passes nothing draws whichever member of the family the generator happens to default to rather than the one its essay argues about — which is what optcheck and figfill exist to catch.