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[Octave-bug-tracker] [bug #45261] Qt: cannot close figure after multiple
From: |
Philip Nienhuis |
Subject: |
[Octave-bug-tracker] [bug #45261] Qt: cannot close figure after multiple calls to ginput() |
Date: |
Fri, 05 Jun 2015 19:25:07 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0 SeaMonkey/2.33 |
URL:
<http://savannah.gnu.org/bugs/?45261>
Summary: Qt: cannot close figure after multiple calls to
ginput()
Project: GNU Octave
Submitted by: philipnienhuis
Submitted on: Fri 05 Jun 2015 09:25:02 PM CEST
Category: Plotting with OpenGL
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Regression
Status: None
Assigned to: None
Originator Name: Philip Nienhuis
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.0.0
Operating System: Any
_______________________________________________________
Details:
Steps to reproduce:
>> plot ([0 10]); ## Just some plot
>> [x, y, b] = ginput ();
>> [x, y, b] = ginput ();
>> [x, y, b] = ginput (); # repeated several times
:
:
>> close
error: feval: first argument must be a string, inline function or a function
handle
error: called from
ginput>ginput_closerequestfcn at line 152 column 3
close at line 96 column 5
Looking in ginput.m in debug mode, I see that variable orig_closerequestfcn,
that is a string "close_req" after the first call, is turned into a cell array
that upon each following call to ginput gets nested deeper in the following
fashion:
debug> orig_closerequestfcn
orig_closerequestfcn =
{
[1,1] = @ginput_closerequestfcn
[2,1] =
{
[1,1] = @ginput_closerequestfcn
[2,1] =
{
[1,1] = @ginput_closerequestfcn
[2,1] = closereq
}
}
}
While I'm overall almost clueless about Octave's graphics innards, I think the
error message clearly indicates that feval doesn't expect a cell array. The
call in L.73:
:
orig_closerequestfcn = get (fig, "closerequestfcn");
:
seems to be the culprit as it is there where the cell array is produced.
Closing a figure after multiple calls to ginput() used to work, hence
"regression"
_______________________________________________________
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<http://savannah.gnu.org/bugs/?45261>
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- [Octave-bug-tracker] [bug #45261] Qt: cannot close figure after multiple calls to ginput(),
Philip Nienhuis <=