[Octave-bug-tracker] [bug #46911] Hold all affects visibility of small plot lines

[John Swensen]

URL:
  <http://savannah.gnu.org/bugs/?46911>

                 Summary: Hold all affects visibility of small plot lines
                 Project: GNU Octave
            Submitted by: jpswensen
            Submitted on: Fri 15 Jan 2016 03:16:20 PM EST
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: John Swensen
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.0
        Operating System: Any

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Details:

A student of mine was trying to plot using 'hold all'. We were working in
units of meters with some items having sizes as small as millimeter, so some
of the variables were in the 0.001 to 0.0001 range.

What we found was that when trying to plot lines using values that were small,
combined with the use of 'hold all', that the plot lines simply didn't show
up. We could get the plot to show up either by not using hold all or by
increasing the magnitude of the plot points.

I have attached a script that demonstrates the failure. This was tested on
both Windows and OSX using the GUI version 4.0.0



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File Attachments:


-------------------------------------------------------
Date: Fri 15 Jan 2016 03:16:20 PM EST  Name: hold_all_failure.m  Size: 1kB  
By: jpswensen

<http://savannah.gnu.org/bugs/download.php?file_id=36052>

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