Re: [Gnuplot-info] CSV matrix using latest gnuplot 5.0 rc1

[Mathias B. <mat...@gm...>]

Thanks a lot ! It's working now

It seems that the "pixels" keyword made my day ! Without it, it didn't work
in my bash script

Thanks again

Mathias


2014-08-07 8:58 GMT+02:00 sfeam <sf...@us...>:

> On Wednesday, August 06, 2014 01:50:53 PM Mathias Brulatout wrote:
> > Hi Gnuploters,
> >
> > I'm utrying to plot data using a matrix with an svg output.
> >
> > Here is my data file :
> >
> >  ,30 ,60 ,90 ,120
> > 100, 3.2, 1.81, 1.59, 1.48
> > 200, 4.57, 2.93, 2.5, 2.03
> > 300, 6.26, 4.19, 3.38, 2.96
> > 400, 8.46, 5.67, 4.96, 3.68
> >
> > Actually, it's 10x10 CSV matrix with row and column labels, but I
> truncated
> > it to get a more readable 4x4 CSV matrix (still with row/column headers)
> >
> > And now my (minimal) script :
> >
> > set terminal svg
> > set output 'file.svg'
> > set datafile separator ","
> > plot 'file' matrix rowheaders columnheaders using 1:2:3 notitle  with
> image
> > set datafile separator
> >
> > Gnuplot doesn't complain at all, but I do !
> > x and y scale is OK, as well as the "color scale" from min to max.
> > However nothing is plot between my 2 axis ... It's not the first time I
> use
> > a svg terminal (although it's my first time with a matrix image).
> >
> > It seems that row/columnheaders is a quite new feature ... Is this not a
> > svg terminal feature yet? (is it output terminal-dependant?).
>
> Yes.  It's a new feature that will be in -rc2 but was not ready in time for
> rc1.
>
> Your test case works fine here with svg output.
> I used:
>
> $DATA << EOD
>   ,30 ,60 ,90 ,120
>  100, 3.2, 1.81, 1.59, 1.48
>  200, 4.57, 2.93, 2.5, 2.03
>  300, 6.26, 4.19, 3.38, 2.96
>  400, 8.46, 5.67, 4.96, 3.68
> EOD
>
> set datafile separator comma
> set term svg standalone
> set output 'plot.svg'
> plot $DATA matrix rowheaders columnheaders using 1:2:3 notitle  with image
> unset output
>
> Note that the display of image data in svg depends on how the
> browser/viewer
> chooses to render it.  You might try adding the "pixels" keyword at the end
> of the command to force it render each element independently of its
> neighbors.
>
>         Ethan
>
>
>
>
>
>
> >
> >
> > PS : It works perfectly with a png terminal.
> >
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