[Gnuplot-info] emf, svg working but png not

[X H <mus...@ho...>]

Hi,

I've made a script to draw multiple datasets from a file. With the same script, if I set the ouput to emf or svg, it displays multiple plots per output file as intended but if I use the same code and change the output to png or pngcairo, all output files are white and I suppose empty. Am I missing something with png output? Is there a special command I have to use for png and not for other terminal output?

Here are the relevant lines of the script:
... do for loop to plot to multiple files if more than 8 datasets in the file
{
set terminal emf size 1920,1080
set output datafile.'-'.j.'.emf'
set multiplot
set size 1,1
set origin 0,0
set multiplot layout 4,2 rowsfirst
... do for loop to plot the datasets with: "plot datafile index (i) using 0:9 title columnheader(1), datafile index (i) using 0:17 title columnheader(1)"
}
unset multiplot


gnuplot 4.6 patchlevel 6 - Windows 7

Thank you.