[Octave-bug-tracker] [bug #58305] Colorbar scale errors for very low numbers

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?58305>

                 Summary: Colorbar scale errors for very low numbers
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Tue 05 May 2020 02:37:57 PM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: Vincenzo
        Originator Email: address@hidden
             Open/Closed: Open
                 Release: 5.1.0
         Discussion Lock: Any
        Operating System: Microsoft Windows

    _______________________________________________________

Details:

Hello everyone!
I noticed that when I try to plot a colorbar of a 3D plot with the 'slice'
command (e.g. h=slice(xx,yy,zz,V,xslice,yslice,zslice);) with very low values
(order of magnitude 1E-14), I get a wrong colorbar scaling (see the attached
picture). I tried to fix it with various commands and tricks which I found in
various forums discussions (including those of Matlab), but with no success.
The problem disappears if I multiply the values for a 1E+14 factor (i.e. it
seems it is just a problem of the order of magnitude of the values).

I got the problem with ver. 5.1.0 and both with the last one 5.2.0.

Did anybody noticed the same problem? If yes, is it normal or is it a bug? In
this case, how can it be fixed?

Every suggestion will be more than welcome.

Thank you.

Enzo



    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Tue 05 May 2020 02:37:57 PM UTC  Name: BPA_H_capt.jpg  Size: 69KiB   By:
None
Please note the colorbar scale
<http://savannah.gnu.org/bugs/download.php?file_id=49003>

    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?58305>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/