[Lcd4linux-devel] Histograms

[Scott F. <sc...@st...>]

I've always liked these, and would love if LCD4Linux had a histogram
widget. Basically it's a heartbeat monitor. The bars are nice, but
they only show the state right now. Histograms show the state over the
past however long. Here's an example of what I mean.

.....|*****|*****|*****|*****|*****|*****|*****|
.....|.....|*****|*****|*****|*****|*****|*****|
.....|.....|.....|*****|*****|*****|*****|*****|
.....|.....|.....|.....|*****|*****|*****|*****|
.....|.....|.....|.....|.....|*****|*****|*****|
.....|.....|.....|.....|.....|.....|*****|*****|
.....|.....|.....|.....|.....|.....|.....|*****|
.....|.....|.....|.....|.....|.....|.....|.....|


That may or may not show up right. Try looking at it in a terminal.
These are the 8 special chars used for the histogram. If you have more
special chars, you can complete the spectrum. For every row in a LCD's
characters, the better the histogram looks. Mine has 8 rows.

It basically ticks every so often and moves the history right or left,
appending the new value representation (the LCD's special char).