[Octave-bug-tracker] [bug #54926] colormap property of a figure cannot be empty

[Guillaume]

URL:
  <https://savannah.gnu.org/bugs/?54926>

                 Summary: colormap property of a figure cannot be empty
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Wed 31 Oct 2018 04:28:43 PM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

Setting a figure's colormap with an empty array returns an error:


octave:1>  h = figure ("colormap", [])
error: invalid value for array property "colormap"
error: called from
    figure at line 96 column 7


This is for example used in dialog.m:
http://hg.savannah.gnu.org/hgweb/octave/file/976e7346abf4/scripts/gui/dialog.m#l102
and is valid in matlab:
https://www.mathworks.com/help/matlab/ref/dialog.html
(look for description of output argument d at the end of the page).




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