[time-nuts] web presentation of data
hmurray at megapathdsl.net
Tue Aug 7 14:06:11 EDT 2012
albertson.chris at gmail.com said:
> So the web server is inside an Arduino? Yes can't run GNUplot there. Why
> not have the Arduino produce either Postscript or PDF? It is very easy to
> draw a graph in Postscript.
That's a very good suggestion.
I think the key idea is that the programmer is making some high level
decisions that greatly simplify making the graph. Once you do that, you
don't need a complicated graphing program like gnuplot. An Arduino is smart
enough to do simple things like scaling once you have the environment setup.
Now that you remind me, I actually did that 20+ years ago. I'll fish out the
details if anybody wants to go down that rathole. The old/early Postscript
books are very good.
We were collecting loadcell data. A Mac-SE is probably about as smart as an
Arduino. Each data file had a few header lines then a bunch of numbers. To
print things, I just cat-ed a postscript program with one or more data files
and sent it to the printer. The postscript code was smart enough to read and
process the data files.
These are my opinions. I hate spam.
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