Re: [Lcd4linux-devel] Histograms

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

Well I did something to it and now there's a bug. I'll try to fix that
before I go to bed.

On Tue, May 19, 2009 at 3:26 AM, Scott Flynn <sc...@st...> wrote:

> I decided to work on this. I think I'm understanding the bars code. The one
> thing that confuses me is pack_segments. I found that it cleaned up a lot of
> garbage however, so I'm assuming that's all it's for. I only dealt with
> direction east in the character creation because only east works for me.
> Outside of west maybe, It might be a limitation with my CFA635. I'm ordering
> a picoLCD here soon so I'll have a graphics display to play with and I can
> work on a graphics version of the histogram, unless someone else picks it
> up. Anyhow, there's a diff attached.
>
> Why don't westbound bars work?
>
>
> On Sat, May 16, 2009 at 9:41 AM, Scott Flynn <sc...@st...> wrote:
>
>> 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).
>>
>
>