Re: Proposal: Saving graphs from Qt and wxt terminals

[sfeam <sf...@us...>]

On Friday, 24 October 2014 10:24:50 AM pl...@pi... wrote:

> In principal I agree that there is a need here. Firing up another 
> program just to use its saveAs dialogue seems suboptimal.

It's quite painless in practice.  Try this:

set term png
set output "|display png:-"
plot $whatever

# plot will appear on your screen.
# if you like it and want to save it, then

set output 'itsakeeper.png'
replot


I use the "display" command from ImageMagick, but if you prefer some
other viewer you can substitute the display command as appropriate.

	Ethan



> This need arises because the current output of , say the png terminal, 
> looks very different from the interactive version of graph. I long since 
> gave up trying to tune the two to be sufficiently similar and use the 
> clipboard function.
> 
> One quick way to do this, which could be a first step without all the 
> dialogues would be to add a termopt :
> eg.
> termopt saveDir="/tmp/gnuplot" saveFormat="png"
> 
> Default could be `pwd` . I usually save my plots in the same directory 
> that the data I'm working on is in.
> 
> This could then be done with a single click from the interface, with 
> some default compression parameters for png.
> 
> This would be most useful to me. I don't want to have to go through a 
> metric tonne of option dialogues like gimp does or do battle with the 
> standard file dialogues that require a lot of clicking if you want to go 
> anywhere other "my documents".
> 
> The gimp solution is full of options if you want to tune everything and 
> has full saveAs ( sorry that's called 'export' now :? ) capability.
> 
> What would be nice in gnuplot is a one line configuration command 
> entered from a console that allows a one click save afterwards. A simple 
> text entry for file name is all that is needed. Default to last used 
> name to overwrite or change.
> 
> I agree that both the wx and qt libs would require a steep learning 
> curve for someone not familiar with them.
> 
> The simplest way would be to also specify the file name in termopts. 
> This would make getting the nuts and bolts of a mechanism in place 
> relatively simple.
> 
> 
> 
> If I had to do something like one console command :
> termopt saveDir="/tmp/gnuplot" saveFormat="png" saveFile="test.png"
> 
> then a single click interaction on the interactive terminal this would 
> be significant  time saver for me and would provide a satisfactory 
> minimalistic  solution.
> 
> Error conditions could be reported directly to the console.
> 
> Maybe this is something Philipp could achieve without spending weeks in 
> the bowels of library code.
> 
> 
> 
> I don't see any sense in saving  a graphic as PDF. Maybe someone could 
> say why people do this. AFAIK it justs adds a wrapper around the image 
> and bloats it.
> 
> I can't think what situations would be able to display a PDF that cannot 
> display a png directly.
> 
> 
> Regards. Peter.
> 
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------------
> _______________________________________________
> gnuplot-beta mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-beta