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[Octave-bug-tracker] [bug #40270] image doesn't call newplot to potentia


From: Rik
Subject: [Octave-bug-tracker] [bug #40270] image doesn't call newplot to potentially clear figure
Date: Mon, 14 Oct 2013 19:00:55 +0000
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:24.0) Gecko/20100101 Firefox/24.0

URL:
  <http://savannah.gnu.org/bugs/?40270>

                 Summary: image doesn't call newplot to potentially clear
figure
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Mon 14 Oct 2013 12:00:55 PM PDT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

image() has two calling forms: (1) a high-level form which calls newplot to
prepare an axes for plotting and (2) a low-level form which only accepts
property-value pairs and plots into the current axis unless a different parent
is specified.

In addition, when the high-level form is used the following properties are
set


XLim and YLim
Layer to top
YDir to reverse
View to [0 90]


Octave is not using newplot to correctly figure out if the image should
replace, or be added, to the current axes.  In addition, aside from Ydir,
Octave is setting the other properties regardless of the state of ishold().





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