[python-control-discuss] SF.net SVN: python-control:[131] trunk

[<mur...@us...>]

Revision: 131
          http://python-control.svn.sourceforge.net/python-control/?rev=131&view=rev
Author:   murrayrm
Date:     2011-02-13 03:32:11 +0000 (Sun, 13 Feb 2011)

Log Message:
-----------
* Adding a few unit tests (will probably get redone in v0.4a)
* Updated list of changes 
* Incremented version number to 0.3d

This is intended to be final set of changes before moving over to v0.4a

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/setup.py

Added Paths:
-----------
    trunk/examples/bdalg-matlab.py
    trunk/examples/test-statefbk.py

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog	2011-02-13 03:25:52 UTC (rev 130)
+++ trunk/ChangeLog	2011-02-13 03:32:11 UTC (rev 131)
@@ -1,3 +1,16 @@
+2011-02-12  Richard Murray  <murray@sumatra.local>
+
+	* setup.py: Updated version number to 0.3d, in preparation for release
+
+	* src/statefbk.py (lqr): Updated sb02md calling signature to match
+	latest slycot version (Lauren Padilla)
+
+	* src/freqplot.py (nichols_grid): new function from Allan McInnes
+	<all...@ca...> to generate a Nichols chart for a
+	given plot (equivalent to ngrid in MATLAB).
+
+	* src/matlab.py (ngrid): MATLAB compatible ngrid() command
+
 2010-11-05  Richard Murray  <murray@sumatra.local>
 
 	* external/yottalab.py: New file containing Roberto Bucher's control

Added: trunk/examples/bdalg-matlab.py
===================================================================
--- trunk/examples/bdalg-matlab.py	                        (rev 0)
+++ trunk/examples/bdalg-matlab.py	2011-02-13 03:32:11 UTC (rev 131)
@@ -0,0 +1,17 @@
+# bdalg-matlab.py - demonstrate some MATLAB commands for block diagram altebra
+# RMM, 29 May 09
+
+from control.matlab import *    # MATLAB-like functions
+
+# System matrices
+A1 = [[0, 1.], [-4, -1]]
+B1 = [[0], [1.]]
+C1 = [[1., 0]]
+sys1ss = ss(A1, B1, C1, 0)
+sys1tf = ss2tf(sys1ss)
+
+sys2tf = tf([1, 0.5], [1, 5]);
+sys2ss = tf2ss(sys2tf);
+
+# Series composition
+series1 = sys1ss + sys2ss;

Added: trunk/examples/test-statefbk.py
===================================================================
--- trunk/examples/test-statefbk.py	                        (rev 0)
+++ trunk/examples/test-statefbk.py	2011-02-13 03:32:11 UTC (rev 131)
@@ -0,0 +1,27 @@
+# test-statefbk.py - Unit tests for state feedback code
+# RMM, 6 Sep 2010
+
+import numpy as np              # Numerical library
+from scipy import *             # Load the scipy functions
+from control.matlab import *    # Load the controls systems library
+
+# Parameters defining the system
+m = 250.0			# system mass
+k = 40.0			# spring constant
+b = 60.0			# damping constant
+
+# System matrices
+A = matrix([[1, -1, 1.], [1, -k/m, -b/m], [1, 1, 1]])
+B = matrix([[0], [1/m], [1]])
+C = matrix([[1., 0, 1.]])
+sys = ss(A, B, C, 0);
+
+# Controllability
+Wc = ctrb(A, B)
+print "Wc = ", Wc
+
+# Observability
+Wo = obsv(A, C)
+print "Wo = ", Wo
+
+

Modified: trunk/setup.py
===================================================================
--- trunk/setup.py	2011-02-13 03:25:52 UTC (rev 130)
+++ trunk/setup.py	2011-02-13 03:32:11 UTC (rev 131)
@@ -3,7 +3,7 @@
 from distutils.core import setup
 
 setup(name='control',
-      version='0.3c',
+      version='0.3d',
       description='Python Control Systems Library',
       author='Richard Murray',
       author_email='mu...@cd...',


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