Re: [Matplotlib-users] packing an app with cx_Freeze
Check out the py2exe page about matplotlib.
http://starship.python.net/crew/theller/moin.cgi/MatPlotLib
On 8/14/06, Christian Meesters [EMAIL PROTECTED] wrote:
Hi,
Yesterday I tried packing an application of mine which makes use of wxPython,
scipy, and matplotlib with cx_Freeze.
The Traceback I get after running FreezePython --install-dir SPlot_dir
SPlot.py and starting the application is:
Traceback (most recent call last):
File /home/cm/bin/initscripts/Console.py, line 27, in ?
exec code in m.__dict__
File SPlot.py, line 17, in ?
File /usr/lib64/python2.4/site-packages/matplotlib/__init__.py, line 720,
in ?
defaultParams = {
File /usr/lib64/python2.4/site-packages/matplotlib/__init__.py, line 273,
in wrapper
ret = func(*args, **kwargs)
File /usr/lib64/python2.4/site-packages/matplotlib/__init__.py, line 360,
in _get_data_path
raise RuntimeError('Could not find the matplotlib data files')
RuntimeError: Could not find the matplotlib data files
I should mention that the everything was done on one machine (running SuSE
10.0 and python 2.4.1).
Anyone tried packing an application with matplotlib before and has a hint for
me what to change?
TIA
Christian
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Re: [Matplotlib-users] Problems upgrading to mpl 0.87.4
John Hunter wrote: Charlie, since you are pretty familiar with the blitting API, perhaps you could take a look and see how much work it would be to do wx blitting w/o extension code. I'd be happy to add some additional helper methods in agg if need be, as we did for qt. Didn't MPL originally use the Python API, but with less than stellar performance? I'm not sure how efficient we can get without making changes to wx. However, I think Robin Dunn is pretty open to making some of those changes. For one, he told me a while back that he was going to try to expose some of the API for working directly with wxBitmaps. If we could dump data straight into a wxBitmap, that would be the best option. That's likely to be tricky, however, as a wxBitmap is a wrapper around whatever the platform-native format is for a Bitmap. However, while there are a lot of possible formats for native Bitmaps, 24bit RGB is pretty darn common, if we could get top performance from that from that format, we'd be a long way in the right direction. Another (or additional) option is for both MPL and wx to support the new array interface protocol in numpy. There's a lot of other reasons to do that, and, again, Robin has expressed his support for this. If we could get MPL, wx, numpy, and PIL all passing data around with this protocol, we'd be in great shape. Travis posted a patch to PIL for support a while back, I don't know if it's going to get applied or not, but it's worth looking at. Another place to look for idea is Enthought's Kiva -- It's Agg back-end interacts well with wx -- or so I've heard. I haven't tried it yet myself. I'm no C++ wiz, but I'd be willing to help with the wx modifications -- it's been on my list for a while. Should I send a note to Robin Dunn for ideas? -Chris -- Christopher Barker, Ph.D. Oceanographer NOAA/ORR/HAZMAT (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [EMAIL PROTECTED] - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] quiver , contourf , nans
Dear all, I have to quiver(x,y,u,v) , where u,v are displacement vectors and x,y their position. I also have to contourf(x,y,u) u and v have some nan elements. how does matplotlib handle nans because it returns this error: ValueError: math domain error Thanks Dwishen - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] quiver , contourf , nans
Support for nan in inputs to matplotlib is presently spotty (and mostly accidental); use masked arrays instead. Masked arrays have been supported by contourf for a long time, but I added masked array support to quiver (and only for u and v, not for x and y) only very recently, so until a new release is made (probably very soon) it will be available only in svn. To make a masked array from your array with nans, do something like this: import pylab as P um = P.nx.ma.masked_where(P.nx.isnan(u), u) It might make sense to have matplotlib argument handling code do this automatically on all arguments that can be masked arrays, but unless or until we make that change, you will have to to it manually as needed. Eric Dwishen Ramanah wrote: Dear all, I have to quiver(x,y,u,v) , where u,v are displacement vectors and x,y their position. I also have to contourf(x,y,u) u and v have some nan elements. how does matplotlib handle nans because it returns this error: ValueError: math domain error Thanks Dwishen - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Fixed wxcursor_demo.py example, please commit
I am making a new wxcursor_demo.py example I attach it to this mail.
If anybody can help me iron those wrinkles I think we can make a great
wxcursor_demo example.
I am not proud of invoking the SetCursor method on the wx.EVT_PAINT
event but it works ...
The present wxcursor_demo example is broken because:
- Does not follow wx coding standards, not pythonic at all.
- Very complicated example to follow and long.
- Some nonsensical code such as the Time and Price part.
- The wx hand draw, crosshair has lots of disadvantages (you get
the mouse pointer right next to it so it's useless for picking pixels in
images.)
- The users should have access to wx.StockCursor, with the current
example every cursor has to be hand drawn
This said, I thank a lot the person who started the example
since I used it as a starting point.
Any feedback would be appreciated.
Daniel.
#!/usr/bin/env python
Example to draw a cursor and report the data coords in wx
import matplotlib
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
from matplotlib.numerix import arange, sin, pi
import wx
class CanvasFrame(wx.Frame):
def __init__(self, ):
wx.Frame.__init__(self,None,-1,
'CanvasFrame',size=(550,350))
self.SetBackgroundColour(wx.NamedColor(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.axes.set_xlabel('t')
self.axes.set_ylabel('sin(t)')
self.figure_canvas = FigureCanvas(self, -1, self.figure)
# Note that event is a MplEvent
self.figure_canvas.mpl_connect('motion_notify_event',
self.UpdateStatusBar)
self.figure_canvas.mpl_connect('motion_notify_event', self.UpdateCursor)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.figure_canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.sizer)
self.Fit()
self.statusBar = wx.StatusBar(self, -1)
self.statusBar.SetFieldsCount(1)
self.SetStatusBar(self.statusBar)
self.toolbar = NavigationToolbar2Wx(self.figure_canvas)
self.sizer.Add(self.toolbar, 0, wx.LEFT | wx.EXPAND)
self.toolbar.Show()
def UpdateCursor(self, event):
self.figure_canvas.SetCursor(wx.StockCursor(wx.CURSOR_BULLSEYE))
def UpdateStatusBar(self, event):
if event.inaxes:
x, y = event.xdata, event.ydata
self.statusBar.SetStatusText(( x= + str(x) +
y= +str(y) ),
0)
class App(wx.App):
def OnInit(self):
'Create the main window and insert the custom frame'
frame = CanvasFrame()
self.SetTopWindow(frame)
frame.Show(True)
return True
if __name__=='__main__':
matplotlib.use('WXAgg')
app = App(0)
app.MainLoop()
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Re: [Matplotlib-users] Fixed wxcursor_demo.py example, please commit
Daniel == Daniel Kornhauser [EMAIL PROTECTED] writes: Daniel This said, I thank a lot the person who started the Daniel example since I used it as a starting point. You should also thank that person because he (Jeremy O'Donoghue) wrote the wx backend wink. But the example was written a long time ago and since then many wx users have contributed new/better/more/different wx examples (embedding_in_wx[1-4].py) to atone for the original sins. I'm happy to use your new/more/better/different example, but I'll first defer to the wisdom of the resident wxperts, who may have some comments. JDH - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Fixed wxcursor_demo.py example, please commit
John == John Hunter [EMAIL PROTECTED] writes: John But the example was written a long time ago and since then John many wx users have contributed new/better/more/different wx John examples (embedding_in_wx[1-4].py) to atone for the original Please forgive everything I wrote as the rantings of a deranged lunatic. I now see you were talking about the *cursor* demo, not the *embedding* demo. BTW, have you seen the matplotlib native cursoring, which uses matplotlib or drawing rather than native wx. examples/widgets/cursor.py JDH - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
