R: controldemo fails at the Nyquist demo on octave-3.0.4RC5 (patched for plotting issue)

[Marco Atzeri]

--- Ven 27/2/09, Tatsuro MATSUOKA <address@hidden> ha scritto:

> Da: Tatsuro MATSUOKA <address@hidden>
> Oggetto: controldemo fails at the Nyquist demo on octave-3.0.4RC5 (patched 
> for plotting issue)
> A: address@hidden
> Cc: "MATSUOKA Tatsuro" <address@hidden>
> Data: Venerdì 27 febbraio 2009, 04:22
> Hello
> 
> Sorry for dual posting for this matter.
> 
> However it seem to be a different issue from that we are
> discussing concerning issue about plotting.  
> 
> 
> I have carried out to test controldemo, in which plot fails
> in Nyquist analysis (Nyquist).
>  [ 3] Frequency response functions,  [ 2] Nyquist analysis
> (nyquist),  [ 1] Continuous system nyquist
> analysis
> 
> Some figures appeared fine but crashes like end of file.
> However the origin seems not ot be the same as the prevous
> fails.
> 
> I have used  octave-3.0.4RC5 build by
> mingw-gcc-4.3.2-dw2-TDM, in which patches are applied to
> clf.m,
> legend.m, and graphics.cc.
> 
> Does anyone confirm this ?
> 
> Regards
> 
> Tatsuro
> 
> 
> 
> ****************************
> Example #4,  Nyquist can be used for MIMO systems if the
> system has
> an equal number of inputs and outputs.  Otherwise, nyquist
> returns
> an error.  To examine a MIMO system, systems 2 and 3 will
> be grouped
> [nn,nz] = sysdimensions(sys2);
> sys2 =
> syssetsignals(sys2,"out","y_sys2");
> sys2 =
> syssetsignals(sys2,"in","u_sys2");
> sys2 =
> syssetsignals(sys2,"st",__sysdefioname__(nn+nz,"x_sys2"));
> sys_mimo = sysgroup(sys2,sys3);
> sysout(sys_mimo);
> Input(s)
>       1: u_sys2
>       2: u_1
> 
> Output(s):
>      1: y_sys2
>      2: y_1
> 
> state-space form:
> 6 continuous states, 0 discrete states
> State(s):
>     1: x_sys2_1
>     2: x_sys2_2
>     3: x_1
>     4: x_2
>     5: x_3
>     6: x_4
> 
> A matrix: 6 x 6
>     0.00000    1.00000    0.00000    0.00000    0.00000   
> 0.00000
> 
>   executing
> ---
> 
> 
>  ---- Press a key to continue ---
> q
> 
> To view the nyquist plots for selected  channels, the
> command form changes:
> Command: nyquist(sys_mimo,[],1,1);
> Press a key to execute command  executing
> error: mx_el_eq: nonconformant arguments (op1 is 1x6, op2
> is 2x1)
> error: evaluating binary operator `==' near line 95,
> column 32
> error: evaluating argument list element number 1
> error: evaluating assignment expression near line 95,
> column 16
> error: evaluating for command near line 94, column 9
> error: evaluating if command near line 93, column 7
> error: evaluating if command near line 86, column 5
> error: evaluating if command near line 70, column 3
> error: called from `sortcom' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\util\sortcom.m'
> error: evaluating assignment expression near line 90,
> column 7
> error: called from `zp2ss' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\system\zp2ss.m'
> error: evaluating if command near line 111, column 5
> error: evaluating if command near line 109, column 3
> error: called from `sysupdate' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\system\sysupdate.
> m'
> error: evaluating assignment expression near line 159,
> column 9
> error: evaluating if command near line 158, column 3
> error: called from `sysgetsignals' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\system\sysget
> signals.m'
> error: evaluating while command near line 137, column 5
> error: evaluating if command near line 135, column 3
> error: called from `nyquist' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\base\nyquist.m'
> error: near line 29 of file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\util\run_cmd.m'
> error: evaluating if command near line 321, column 9
> error: evaluating while command near line 308, column 7
> error: evaluating if command near line 43, column 5
> error: evaluating while command near line 35, column 3
> error: called from `frdemo' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\base\frdemo.m'
> error: evaluating switch command near line 67, column 5
> error: evaluating while command near line 49, column 3
> error: called from `DEMOcontrol' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\base\DEMOcontro
> l.m'
> error: called from `controldemo' in file
> `d:\usr\Tatsu\mingwhome\octaves\octave-3.0.4RC5\scripts\control\base\controldem
> o.m'
> 

confirmed on fedora10 86x64 
octave-3.0.4RC5 + same Caliari's patches

regards
Marco


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