[Octave-bug-tracker] [bug #35034] Plotting: axis returns wrong value, axis ('tight') not working properly

[Lukas Reichlin]

URL:
  <http://savannah.gnu.org/bugs/?35034>

                 Summary: Plotting: axis returns wrong value, axis ('tight')
not working properly
                 Project: GNU Octave
            Submitted by: paramaniac
            Submitted on: Sun 11 Dec 2011 07:39:42 PM 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: 3.4.3
        Operating System: Mac OS

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Details:

Octave shows unexpected behaviour when running the following code:


plot (11:20, [21:25, -Inf, 27:30])
a = axis
axis ('tight')
b = axis


Matlab returns b(3) = 21 whereas Octave returns b(3) = -Inf. Moreover,
axis('tight') screws the plot up in Octave, see the attachments. The problem
seems to be caused by the Inf value on the y-axis.


Matlab R2011b

>> plot (11:20, [21:25, -Inf, 27:30])
a = axis
axis ('tight')
b = axis

a =

    11    20    21    30


b =

    11    20    21    30

>>


Octave 3.4.3

octave:1> plot (11:20, [21:25, -Inf, 27:30])
octave:2> a = axis
a =

   10   20   20   30

octave:3> axis ('tight')
octave:4> b = axis
b =

    11    20  -Inf    30

octave:5> 




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File Attachments:


-------------------------------------------------------
Date: Sun 11 Dec 2011 07:39:42 PM GMT  Name: matlab.png  Size: 35kB   By:
paramaniac

<http://savannah.gnu.org/bugs/download.php?file_id=24566>
-------------------------------------------------------
Date: Sun 11 Dec 2011 07:39:42 PM GMT  Name: octave.png  Size: 23kB   By:
paramaniac

<http://savannah.gnu.org/bugs/download.php?file_id=24567>

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