[Octave-cvsupdate] SF.net SVN: octave:[8375] trunk/octave-forge/main/control/inst

[<par...@us...>]

Revision: 8375
          http://octave.svn.sourceforge.net/octave/?rev=8375&view=rev
Author:   paramaniac
Date:     2011-07-05 19:08:00 +0000 (Tue, 05 Jul 2011)

Log Message:
-----------
control: add texinfo string to ssdata, use circle for zeros in pzmap

Modified Paths:
--------------
    trunk/octave-forge/main/control/inst/@lti/ssdata.m
    trunk/octave-forge/main/control/inst/pzmap.m

Modified: trunk/octave-forge/main/control/inst/@lti/ssdata.m
===================================================================
--- trunk/octave-forge/main/control/inst/@lti/ssdata.m	2011-07-04 13:02:03 UTC (rev 8374)
+++ trunk/octave-forge/main/control/inst/@lti/ssdata.m	2011-07-05 19:08:00 UTC (rev 8375)
@@ -18,6 +18,29 @@
 ## -*- texinfo -*-
 ## @deftypefn {Function File} {[@var{a}, @var{b}, @var{c}, @var{d}, @var{tsam}] =} ssdata (@var{sys})
 ## Access state-space model data.
+## Argument @var{sys} is not limited to state-space models.
+## If @var{sys} is not a state-space model, it is converted automatically.
+##
+## @strong{Inputs}
+## @table @var
+## @item sys
+## Any type of LTI model.
+## @end table
+##
+## @strong{Outputs}
+## @table @var
+## @item a
+## State transition matrix (n-by-n).
+## @item b
+## Input matrix (n-by-m).
+## @item c
+## Measurement matrix (p-by-n).
+## @item d
+## Feedthrough matrix (p-by-m).
+## @item tsam
+## Sampling time in seconds.  If @var{sys} is a continuous-time model,
+## a zero is returned.
+## @end table
 ## @end deftypefn
 
 ## Author: Lukas Reichlin <luk...@gm...>

Modified: trunk/octave-forge/main/control/inst/pzmap.m
===================================================================
--- trunk/octave-forge/main/control/inst/pzmap.m	2011-07-04 13:02:03 UTC (rev 8374)
+++ trunk/octave-forge/main/control/inst/pzmap.m	2011-07-05 19:08:00 UTC (rev 8375)
@@ -28,7 +28,6 @@
 function [pol_r, zer_r] = pzmap (sys)
 
   ## TODO: multiplot feature:   pzmap (sys1, "b", sys2, "r", ...)
-  ## TODO: use better symbols for poles and zeros, fltk backend might be helpful
 
   if (nargin != 1)
     print_usage ();
@@ -47,7 +46,7 @@
     zer_re = real (zer);
     zer_im = imag (zer);
 
-    plot (pol_re, pol_im, "xb", zer_re, zer_im, "sr")
+    plot (pol_re, pol_im, "xb", zer_re, zer_im, "or")
     grid ("on")  
     title (["Pole-Zero Map of ", inputname(1)])
     xlabel ("Real Axis")


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