Re: [Gnuplot-info] "All points x value undefined"

[Giacomo M. <gia...@em...>]

I just realize that I have the same problem with the command:
splot 'datafile.dat'
  where 'datafile.dat' is from the Gnuplot documentation!
# The valley of the Gnu.
         0 0 10
         0 1 10
         0 2 10
         1 0 10
         1 1 5
         1 2 10
         2 0 10
         2 1 1
         2 2 10
         3 0 10
         3 1 0
         3 2 10

The error is the same:

gnuplot> splot 'datafile.dat'
          warning: Skipping unreadable file "datafile"
          warning: Axis range undefined due to improper data values.  
NaN? Inf?
                          ^
          All points x value undefined

Il giorno 07/dic/2009, alle ore 18.30, Giacomo Monari ha scritto:

> Hello everyone,
>
> I'm trying to plot contour lines from a file.
>
> The commands I'm using are:
>
> set terminal postscript eps enhanced solid color
> set autoscale
> set xlabel "R"
> set ylabel "z"
> set size ratio -1
> set view 0,0
> unset surface
> unset key
> unset title
> set contour
> set cntrparam levels incremental 0.1,0.02,50
> set output "output.eps"
> splot "r_z0.dat" with lines
> set size ratio 0
>
>
> and the file "r_z0.dat" looks like
>
> -0.23630E+01    0.00000E+00    0.76950E-07
>  -0.23630E+01    0.18461E-01    0.75733E-07
>  -0.23630E+01    0.36922E-01    0.73310E-07
>  -0.23630E+01    0.15322E+01    0.00000E+00
>  -0.23630E+01    0.15507E+01    0.00000E+00
>  -0.23630E+01    0.15692E+01    0.00000E+00
>  -0.23630E+01    0.15876E+01    0.00000E+00
>  -0.23630E+01    0.16061E+01    0.00000E+00
>  -0.23630E+01    0.16246E+01    0.00000E+00
>  -0.23630E+01    0.16430E+01    0.00000E+00
>  -0.23630E+01    0.16615E+01    0.00000E+00
>  -0.23630E+01    0.16799E+01    0.00000E+00
>  ecc.
>  -0.23630E+01    0.21784E+01    0.00000E+00
>  -0.23630E+01    0.21968E+01    0.00000E+00
>  -0.23630E+01    0.22153E+01    0.00000E+00
>  -0.23630E+01    0.22338E+01    0.00000E+00
>  -0.23630E+01    0.22522E+01    0.00000E+00
>  -0.23630E+01    0.22707E+01    0.00000E+00
>  -0.23630E+01    0.22891E+01    0.00000E+00
>  -0.23630E+01    0.23076E+01    0.00000E+00
>  -0.23630E+01    0.23261E+01    0.00000E+00
>  -0.23630E+01    0.23445E+01    0.00000E+00
>
>  -0.23445E+01    0.00000E+00    0.23269E-06
>  -0.23445E+01    0.18461E-01    0.23145E-06
>  -0.23445E+01    0.36922E-01    0.22897E-06
>  -0.23445E+01    0.55383E-01    0.22545E-06
>  -0.23445E+01    0.73843E-01    0.22097E-06
>  -0.23445E+01    0.92304E-01    0.21524E-06
>  -0.23445E+01    0.11077E+00    0.20825E-06
>  -0.23445E+01    0.12923E+00    0.19997E-06
>  -0.23445E+01    0.14769E+00    0.19042E-06
>  -0.23445E+01    0.16615E+00    0.17968E-06
>  -0.23445E+01    0.18461E+00    0.16793E-06
>  -0.23445E+01    0.20307E+00    0.15485E-06
>  -0.23445E+01    0.22153E+00    0.14042E-06
>  -0.23445E+01    0.23999E+00    0.12462E-06
>  -0.23445E+01    0.25845E+00    0.10746E-06
>  -0.23445E+01    0.27691E+00    0.88923E-07
>  -0.23445E+01    0.29537E+00    0.69146E-07
> ecc.
>
> And I get an error message like :
>
> "commands.txt", line 13: warning: Skipping unreadable file "r_z0.dat"
> "commands.txt", line 13: warning: Axis range undefined due to improper
> data values. NaN? Inf?
> splot "r_z0.dat" with lines
>                                               ^
> "commands.txt", line 13: All points x value undefined
>
>
>
> Any idea of what could it be?
>
> Note: it used to work. Recently I upgraded Gnuplot to v. 4.2 and I'm
> not using anymore ifort as a Fortran compiler to create the
> executables that give me those data files, but gfortran. But since
> I've done both things together I don't know if it's Gnuplot 4.2 fault
> or gfortran fault...
>
>
> Thanks in advance!
>
> Giacomo
>
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