system command to launch epstopdf

[John McOwen]

Hello again,

1) I am trying to launch a system command from a gnuplot script - and it only works partly. The function itself (epstopdf) is called but it doesn't seem to recognize the string in front of it (no file found). If I try to convert a file in the cmd-terminal it works fine (for example: epstopdf test.eps), but in the script the output is generated with a string function as follows:

reset
set terminal postscript eps size 10.0cm,6.0cm font "Helvetica, 16" enhanced color#16

# field = gemessenes Feld + Verbindungsfelder (spez. Reihenfolge), seg = #Segmente, type = Mess-Typ (4P, Transferkennlinie, etc.)
INPUT(field1,seg1,type1) = 'all_data_converted/Hex02_field'.field1.'_'.seg1.'seg_'.type1.'.txt'
OUTPUT(field2,seg2,type2) = 'all_data_converted/'.type2.'_Hex02_field'.field2.'_'.seg2.'seg.eps'
name(field3,seg3,type3) = type3.', Hex-Feld '.field3.' bei '.conn3.', mit '.seg3.' Au-Segment(en)'

type = '4P'
if(type = '4P'){
    set xlabel '(V)'
    set ylabel 'current (pA)'
    set xrange [-1.:1.]
}

if(type = 'trans'){
    set xlabel 'VGate (V)'
    set ylabel 'IDrain (pA)'
    set xrange [-1.:1.]
}

do for [field in '04_56 06_12']{
    if(field == '04_56'){seg = 1}
    if(field == '06_12'){seg = 2}
    set output OUTPUT(field,seg,type)
    print INPUT(field,seg,type)
    print OUTPUT(field,seg,type)
    plot INPUT(field,seg,type) u 1:2
    system('epstopdf '.OUTPUT(field,seg,type))#input file does not exist
    seg = 99
}

exit

the eps-Output works, but epstopdf gives me an error (logfile says no file found).

2) in the same script I tried to generate the output into a new folder. I tried to use

outputdirectory = 'all_data_converted/Gnu-Out/'
system('mkdir '.outputdirectory)

but it didn't work - possibly for the same reason as above

any help would be much appreciated
have a nice day
JMcO

[John McOwen]

just realized the if statements in the middle were faulty, == instead of = obviously (now I'm getting an error that a numeric expression was expected but never mind)

[John McOwen]

ok, apparently eq instead of ==, now at least this error's gone