[Octave-bug-tracker] [bug #58419] "integer overflow" when plotting large numbers

[Daniel Molina García]

URL:
  <https://savannah.gnu.org/bugs/?58419>

                 Summary: "integer overflow" when plotting large numbers
                 Project: GNU Octave
            Submitted by: dmolina
            Submitted on: Wed 20 May 2020 10:45:30 PM UTC
                Category: Plotting with gnuplot
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

A warning is reported when plotting vectors that includes large numbers.

Sending coordinates as double to gnuplot would avoid the warning.

Example to reproduce it:


octave:1> x = linspace(0,1e10);
octave:2> graphics_toolkit gnuplot
octave:3> plot(x,x)

gnuplot> set xtics in scale  1.4 border mirror ( "0" 0,  "2e+09" 2000000000, 
"4e+09" 4000000000,  "6e+09" 6000000000,  "8e+09" 8000000000,  "1e+10"
10000000000) textcolor rgb "#262626" font ",10";
                                                                              
       ^
         line 0: warning: integer overflow; changing to floating point
[...]






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