Re: gnuplot: any recent updates

[Graham Henstridge <graham@...>]

Hi
Thanks for the feedback - seen comments below. We will be updating to  
gnuplot 4.2 from 4.0 next month, so may have other issues then.
Thank you
Graham

On 25/05/2009, at 2:02 PM, Wesley Smith wrote:

> Thanks for the link.  I just started working with it.  A few comments:
>
> - the system variable is not defined at all on startup and gives
> errors.  I think this should be given reasonable defaults.  Here's
> what I used:
>
> system = {
> 	plotPath = "/usr/bin/",
> 	tempPath = "./TestData/",
> 	plotImagePath = "./plots/",
> }
From memory in our system, "system" is global and defined else where  
- but point taken, it should (and will) be documented as such.

> I found the comments about these path in plot.lua misleading,
> especially since tempPath seems to double as a data path.
The yes the paths may seem a little unorthodox, but the code is  
embedded in hardware with limited resources - so compromises are made.  
Data is frequently written to volatile tmp areas until we are certain  
it needs to be archived.

> - I had to add a "set terminal png" to the gnuplot script output to
> get it to work.  Otherwise, I had a png of 0 bytes.  Here's the
> modified output:
>
> reset
> set terminal png
> set output "./plots/vibration.png"
This is a surprise and we will investigate when moving to v4.2.

> plot \
> "./TestData/dog" using 1:2:3:4 title "catsdogs1" with vectors, \
> "./TestData/dog" using 5:6:3:4 title "catsdogs2" with vectors
> unset multiplot
>
>
> This is with:
>        Version 4.2 patchlevel 3
> 	last modified Mar 2008
> 	System: Linux 2.6.27-11-generic
>
>
>
> wes