bugGNU Octave - Bugs: bug #53780, [octave forge] (control) error:...


bug #53780: [octave forge] (control) error: unknown line property when using pzmap

Submitted by:  Alexander Wilms <alexanderw>
Submitted on:  Sat 28 Apr 2018 07:45:59 PM UTC  
Category:  Octave Forge Package Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Unexpected Error
Status:  Fixed Assigned to:  None
Originator Name:  Open/Closed:  Closed
Release:  dev Operating System:  GNU/Linux

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( Jump to the original submission)

Wed 05 Feb 2020 04:23:52 PM UTC, comment #8: 

I am working on this bug.
Bugs 57716 57712 and 53780 are all the same problem showing up differently.
The "fix"  used here for this bug, just fixed the symptoms not the root cause. My new fix will address the cause.

Doug Stewart <dastew>
Sun 06 May 2018 11:18:11 AM UTC, comment #7: 

This can be closed as fixed.

Doug Stewart <dastew>
Fri 04 May 2018 12:25:18 AM UTC, comment #6: 

I thought about that, but a system with just zeros is
very rarely if ever used.

But if you want to go that way, it is ok with me.

Doug Stewart <dastew>
Fri 04 May 2018 12:09:40 AM UTC, comment #5: 

Thanks. Should poles be treated the same way?

    if (isempty ( zer{:}))
       h = plot (pol_args{:});
    elseif  (isempty ( pol{:}))
       h = plot (zer_args{:});
       h = plot (pol_args{:}, zer_args{:});

Right now, I get

>> pzmap(s)

error: plot: no data to plot
error: called from
    _plt_ at line 122 column 11
    plot at line 223 column 10
    pzmap at line 120 column 10

Alexander Wilms <alexanderw>
Thu 03 May 2018 11:46:40 PM UTC, comment #4: 
Doug Stewart <dastew>
Thu 03 May 2018 02:12:39 PM UTC, comment #3: 

I have a fix. I will push it shortly.

     ## If no zeroes then just plot the poles
    if (isempty ( zer{:}))
       h = plot (pol_args{:});
       h = plot (pol_args{:}, zer_args{:});

Doug Stewart <dastew>
Wed 02 May 2018 08:49:54 PM UTC, comment #2: 

It only errors  when there are no zeros.
I am still looking.

Doug Stewart <dastew>
Sat 28 Apr 2018 08:41:52 PM UTC, comment #1: 

confirmed here

Doug Stewart <dastew>
Sat 28 Apr 2018 07:45:59 PM UTC, original submission:  

control package version: 3.1.0

Alexander Wilms <alexanderw>


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Attach Files:

Attached Files
file #44056:  pzmap.png added by alexanderw (14KiB - image/png)


Depends on the following items: None found

Items that depend on this one: None found


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  • -email is unavailable- added by mtmiller (Updated the item)
  • -email is unavailable- added by dastew (Posted a comment)
  • -email is unavailable- added by alexanderw (Submitted the item)

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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2020-01-31 mtmiller StatusConfirmed => Fixed
        Open/ClosedOpen => Closed
    2018-05-01 mtmiller StatusNone => Confirmed
        Release4.3.92 => dev
    2018-04-28 alexanderw Attached File- => Added pzmap.png, #44056

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