matplotlib-users Mailing List for matplotlib

Release Name: matplotlib-0.62.4

Notes:
What's new in matplotlib-0.62 -=20

You can read this in html with hyperlinks at
http://matplotlib.sf.net/whats.new.html.

  * interactive support in ipython http://ipython.scipy.org with
    ipython -pylab, which detects your backend and loads the
    appropriate interactive, threaded shell, as well as all of
    matplotlib.matlab and numerix.  Requires ipython-0.6.3.  Backend
    status summary: linux (all backends working), OSX (tkagg and gtk*
    work), win32 (tkagg only).  Thanks Fernando Perez!

  * Excellent improvements in log ticking and formatting.  You can now
    do log plots in any base with major and minor tick support.  You
    can easily customize the location of the minor ticks with the subs
    arguments.  Mathtext exponential labeling for log plots.  Thanks
    Darren Dale and Gregory Lielens.  See the new screenshot and
    example - http://matplotlib.sf.net/screenshots.html#log_shot and
    help for the semilogx, semilogy and loglog.

      # base 16 semilog x plot with minor ticks on the 2s, 4s and 8s
      semilogx(x,y, basex=3D16, subsx=3D[2,4,8])

  * Mathtext now more than 5x faster.  Thanks to Paul Mcguire for
    optimizations in both pyparsing and the matplotlib grammar!
    Warning, mathtext broken on python2.2.  We hope to fix this soon.

  * fltkagg backend - alpha.  Gregory Lielens submitted an fltkagg
    backend which requires CVS pyfltk.  Feedback please!

  * Bug fixes: fixed some image edge effects, a ttf read problem in
    backend_ps on win32, several errorbar problems, a HOME dir bug on
    win32, grid w/o args now toggle grid state, multiple imshows with
    different extents, markerface color as RGB tulple

Downloads at http://sourceforge.net/projects/matplotlib

-------------------------------------------------------------------------=
-------
Changes:
2004-08-30 matplotlib 0.62.4 released

2004-08-30 Fixed a multiple images with different extent bug,
           Fixed markerfacecolor as RGB tuple

2004-08-27 Mathtext now more than 5x faster.  Thanks to Paul Mcguire
           for fixes both to pyparsing and to the matplotlib grammar!
           mathtext broken on python2.2

2004-08-25 Exposed Darren's and Greg's log ticking and formatting
           options to semilogx and friends

2004-08-23 Fixed grid w/o args to toggle grid state - JDH

2004-08-11 Added Gregory's log patches for major and minor ticking

2004-08-18 Some pixel edge effects fixes for images

2004-08-18 Fixed TTF files reads in backend_ps on win32. =20

2004-08-18 Added base and subs properties for logscale plots, user
           modifiable using
           set_[x,y]scale('log',base=3Db,subs=3D[mt1,mt2,...]) - GL

2004-08-18 fixed a bug exposed by trying to find the HOME dir on win32
           thanks to Alan Issac for pointing to the light - JDH

2004-08-18 fixed errorbar bug in setting ecolor - JDH

2004-08-12 Added Darren Dale's exponential ticking patch

2004-08-11 Added Gregory's fltkagg backend
-------------------------------------------------------------------------=
-------Special numarray Note:The windows installers for the numarray =
version of=20
matplotlib will be unavailable until some time next=20
week due to the untimely death of Todd Miller's PC.

 > I suggest you start with
 > 
<http://matplotlib.sourceforge.net/examples/embedding_in_wx2.py>http://matplotlib.sourceforge.net/examples/embedding_in_wx2.py 
and
 > perturb off of that.  I can"t take a close look at your code right
 > now, but this should get you started.
 >
 > Cheers,
 > JDH

Hi, and thanks for the reply.

The code was stripped out of embedding_in_wx.py; the version I have did not 
have embedding_in_wx2.py included... I upgraded to 
matplotlib-0.61.0.win32-py2.2

This (mostly) Boa generated code now does work similarly (no toolbar):
__________________________________________________________________
#Boa:Frame:wxFrame1

from wxPython.wx import *

from matplotlib.numerix import arange, sin, pi
import matplotlib
matplotlib.use('WX')
from matplotlib.backends.backend_wx import FigureCanvasWx as FigureCanvas
#from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
from wxPython.wx import *

def create(parent):
     return wxFrame1(parent)

[wxID_WXFRAME1] = map(lambda _init_ctrls: wxNewId(), range(1))

class wxFrame1(wxFrame):
     def _init_ctrls(self, prnt):
         # generated method, don't edit
         wxFrame.__init__(self, id=wxID_WXFRAME1, name='', parent=prnt,
               pos=wxPoint(66, 66), size=wxSize(391, 312),
               style=wxDEFAULT_FRAME_STYLE, title='wxFrame1')
         self.SetClientSize(wxSize(383, 285))

     def __init__(self, parent):
         self._init_ctrls(parent)

         self.SetBackgroundColour(wxNamedColor("WHITE"))

         self.figure = Figure()
         self.axes = self.figure.add_subplot(111)
         t = arange(0.0,3.0,0.01)
         s = sin(2*pi*t)

         self.axes.plot(t,s)
         self.canvas = FigureCanvas(self, -1, self.figure)

         self.sizer = wxBoxSizer(wxVERTICAL)
         self.sizer.Add(self.canvas, 1, wxLEFT | wxTOP | wxGROW)
         self.SetSizer(self.sizer)
         self.Fit()

     def OnPaint(self, event):
         self.canvas.draw()


Ray
http://rjs.org

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Hello,
I've packaged a new version of python-matplotlib and ipython, you can find my
packages at this address:

deb http://anakonda.altervista.org/debian packages/
deb-src http://anakonda.altervista.org/debian sources/

# apt-get install python-matplotlib python-matplotlib-doc ipython



P.S.
python-matplotlib-doc isn't complete because pydoc exits with a segfault when I
build documentation, I'm investigating on this...



- --
/Vittorio Palmisano/
Home Page: http://redclay.altervista.org
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello,
I've packaged a new version of python-matplotlib and ipython, you can find my
packages at this address:

deb http://anakonda.altervista.org/debian packages/
deb-src http://anakonda.altervista.org/debian sources/

# apt-get install python-matplotlib python-matplotlib-doc ipython



P.S.
python-matplotlib-doc isn't complete because pydoc exits with a segfault when I
build documentation, I'm investigating on this...


- --
/Vittorio Palmisano/
Home Page: http://redclay.altervista.org
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q4+FEtMxwotTJ4MnW+JNrF0=
=3fLp
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>>>>> "Ray" == Ray Schumacher <rj...@bl...> writes:

    Ray> Hi all, I've been looking at matplotlib, as I'm using
    Ray> wxPyPlot and want a bit more...

    Ray> Q1: Has anyone used matplotlib with Boa, and, as a Plug-in?


    Ray> Q2: In the code below, (and with/from the example) I'm trying
    Ray> to simply display a plot, no toolbar, sizer etc.  The canvas
    Ray> appears on the panel, but no plot appears. What am I missing?

I suggest you start with
http://matplotlib.sourceforge.net/examples/embedding_in_wx2.py and
perturb off of that.  I can't take a close look at your code right
now, but this should get you started.

Cheers,
JDH

>>>>> "GHubert" == Hubert Hickman <hu...@tc...> writes:

    GHubert> Hello, I am trying to construct a plot that is a barchart
    GHubert> with the X-axis being dates.  I have used the plot_dates
    GHubert> to generated line plots that look great, however, other
    GHubert> than turning the dates into integers myself I cannot
    GHubert> figure out a way to do a barchart with dates as the
    GHubert> Xaxis.

    GHubert> Has anyone done one of these - I am using the wxPython
    GHubert> backend, if that matters.

I suggest you use integer (epoch) dates on the x axis of the bar as
provided by a datetime converter (see
http://matplotlib.sourceforge.net/matplotlib.dates.html) and then use
one of the many matplotlib datetime tick locators and formatters which
know how to format these epoch dates.  With any axes, you can set a
custom tick locator and/or formatter.  This is, in fact, what
plot_date does; see also
http://matplotlib.sourceforge.net/matplotlib.ticker.html and see the
examples (from http//matplotlib.sf.net/examples or in the matplotlib
src distribution in the examples subdir)

     custom_ticker1.py
     major_minor_demo1.py
and  major_minor_demo2.py

and take a look at the src code of the plot_date function in
matplotlib/axes.py for an example of using date tickers and
formatters.

Sorry I can't be of more help right now but I'm short on time; perhaps
someone else can provide a concrete example.

Cheers,
JDH

>>>>> "Xavier" == Xavier MERIAUX <Me...@mr...> writes:

    Xavier> Hi, I am a new user of matplotlib.  I have already plot
    Xavier> some data whit it but, I can't find the way to control the
    Xavier> axis scales ...  I know how to define the min/max number
    Xavier> for each axis. Is it possible to define the intermediate
    Xavier> scale values ??  For example , the x - axis marks are
    Xavier> (automatically) choosen :0 , 0.2 , 0.4 , 0.6 , 0.8 , 1.0
    Xavier> Can I have instead the values 0, 0.5 , 1.0 written on the
    Xavier> axis ?

You can set the xticks with the following. 

  set(gca(), xticks=[0, 0.5 , 1.0])

If you haven't had a chance yet to read the tutorial at
http://matplotlib.sourceforge.net/tutorial.html, it should help
somewhat.    See the section "Controlling axes properties"

Cheers,
John Hunter