[Octave-bug-tracker] [bug #42435] cropped image elements don't display

[Brent Baccala]

URL:
  <http://savannah.gnu.org/bugs/?42435>

                 Summary: cropped image elements don't display
                 Project: GNU Octave
            Submitted by: baccala
            Submitted on: Tue 27 May 2014 01:00:09 AM GMT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.1
        Operating System: GNU/Linux

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Details:


If a matrix is displayed using image() and zoomed so that individual elements
occupy more than one pixel on the screen, the elements either display
completely or not at all.  In particular, if the image is panned so that an
element is partially on the screen and partially off, it doesn't display at
all.


m=[[1 2 3]; [4 5 6]; [7 8 9]]
image(m)


...then pan the image and observe how elements behave when cropped





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