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[Octave-bug-tracker] [bug #48667] Colormap not controllable at the axes


From: Dan Sebald
Subject: [Octave-bug-tracker] [bug #48667] Colormap not controllable at the axes level
Date: Mon, 1 Aug 2016 07:07:21 +0000 (UTC)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0

URL:
  <http://savannah.gnu.org/bugs/?48667>

                 Summary: Colormap not controllable at the axes level
                 Project: GNU Octave
            Submitted by: sebald
            Submitted on: Mon 01 Aug 2016 07:07:19 AM GMT
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Try the following example:


demo('image', 1);
a = rand(10,10);
imshow(a > 0.5, [1,0,0;0,1,0]);


It doesn't seem logical that the colormap used in all subplots (i.e.,
different axes) should take on the same colormap as the most recently used
colormap.

Well, that's the general issue, but more than that is a question of how
imshow() should process the "MAP", i.e., the [1,0,0;0,1,0] in this case.  Does
that MAP mean it should be used just for that image, or that the axes/figure
should inherit that map as the color-map?




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?48667>

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