Re: [Matplotlib-users] gradient fills for bar charts?
Eric Firing wrote: Short of laboriously putting an image in each bar, no. That's a shame :-( So, no gradient filled patches in MPL? Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting with missing data?
Pierre GM wrote: Could you send me an example of the kind of data you're using ? It's basically performance and volume data for a high-volume website. Unfortunately, the data is gappy in places due to data collection errors in the past... (it's important the gaps are shown, rather than trying to interpolate them away, however) As it seems you're dealing with series indexed in time, you may want to try scikits.timeseries, a package Matt Knox and myself implemented for that very reason. How would this help me here and where can I find out about it? cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib threadsafe?
Eric Firing wrote: In general, I don't think mpl is threadsafe at all; it uses global variables, such as all the rc parameters, that could easily be modified by one thread while being used by another. I think that great care would be needed if one wanted to have multiple threads making plots. Having one plotting thread and any number of threads doing other things, however, should be OK. Oh yes -- I didn't think of the rcParams. Michael Droettboom wrote: At least the Agg backend *looks* to be reasonably threadsafe -- there are no obvious gotchas like global variables etc. Note, though, that multithreading may not gain much in the way of performance since the global interpreter lock is never released around long-running C blocks. Possibly this could be changed. The danger would be accidentally modifying or deleting an array that is being used by C extension code. Modifying may be problematic, but deleting would not be likely -- the C function holds a reference to each of the arrays as they are using them. However, I can't speak about this from any experience -- so, maybe it needs some trying. Any patches to help with thread safety and performance are of course welcome ;) At the very least, I think we would have to take all the global state information and put it in a class instance, so there could be multiple plotting machines. Pyplot would then instantiate and use one of these; the OO API would allow one to instantiate any number of them. I have not thought about how easy or hard this would be. Ditto that. Having just come back from PyCon, I'll parrot the standard Python answer to this question which is: Don't use threads, use multiple processes, which would seem to solve all these issues -- but, I understand that it not always the best solution. Mike Eric Cheers, Mike Chris Withers wrote: Hi All, I'm wondering what work people have done with matplotlib in multi-threaded environments such as your average python web framework. Is matplotlib threadsafe? How have people gone about safely using it in a multi-threaded environment? cheers, Chris - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Bug exporting mathtext to eps file in 0.91.2 on windows
I have confirmed that it is a bug in (at least the windows version) of mpl
0.91.2.
When saving eps files, and using mathtext, the cm fonts don't get saved, and
the
greek symbols (and others I presume) don't show up in the eps file.
This works in mpl 0.90.1, where the eps file does store the fonts.
%%BeginFont: Cmmi10
When running the same problem with 0.91.2, the fonts are not stored.
Either using ps.fonttype 3 or 42.
Anybody who can fix this?
Thanks, Mark
On Wed, Mar 19, 2008 at 11:21 AM, Bernhard Voigt [EMAIL PROTECTED]
wrote:
Hi Mark!
The problem seems to be that the computer modern font (cm) is not
included in the eps file. The snipped of the eps file I sent before
defines the font cmmi10:
%!PS-Adobe-3.0 Resource-Font
%%Title: cmmi10
%%Copyright: Copyright (C) 1994, Basil K. Malyshev. All Rights
Reserved.012BaKoMa Fonts Colle
ction, Level-B.
%%Creator: Converted from TrueType by PPR
.
/FontName /Cmmi10 def
And later, when the \chi glyph should be drawn, the font is changed to:
/Cmmi10 findfont
16.0 scalefont
setfont
0.00 4.921875 moveto
/chi glyphshow
Which is the same in your file, but your file only contains the
Bitstreem Vera Sans font for the axis ticks. Cmmi10 is missing :-(
Your pdf, however, does contain the cmmi10 font, you can check via
file-properties-fonts.
You should have the following in your matplotlibrc file (well, you
said you have it, but let me repeat):
mathtext.fontset : cm
mathtext.fallback_to_cm : True
ps.useafm : False
ps.fonttype : 3
Check the settings using the interpreter prompt:
In [10]: p.rcParams['mathtext.fontset']
Out[10]: 'cm'
etc...
Well, if they are all correctly set, it's probably a bug in the ps
backend not including the mathtext font.
A workaround would be to convert the pdf file to ps (either use
command line options of acroread or print to file), edit the ps file
to be a eps by changing the header to %!PS-Adobe-2.0 EPSF-2.0 and make
sure the bounding box is specified (see
http://www.postscript.org/FAQs/language/node82.html for details)
Bernhard
On Wed, Mar 19, 2008 at 10:22 AM, Mark Bakker [EMAIL PROTECTED] wrote:
Hello Mike -
Thanks for taking a look at this.
Easy example:
from pylab import *
plot([1,2,3])
text(1,1.5,r'$\chi$')
savefig('d:/temp/test.eps')
There shoud now be a line and the symbol chi.
Works great in the pdf file, not in the eps file.
Both are attached.
Strangely enough at the end of the eps file there are statements:
0.00 3.703125 moveto
/chi glyphshow
Which looks to me like writing chi.
I have now tried this on 4 windows machines, with different
installations of gsview, but it doesn't work on any.
It works fine under mpl vs. 0.90.1. That has the same statement for chi,
but defines chi internally inside the eps file (which is much bigger).
Thanks, Mark
On Tue, Mar 18, 2008 at 7:09 PM, mdroe [EMAIL PROTECTED] wrote:
It looks like it may be Windows-specific. I can create .eps files
with
math on mpl-0.91.2, Python 2.5, gs-7.07 on Linux without problems.
Someone with a Windows installation may need to look at this.
Just so I can have a deeper look -- can you please attach
a) the Python source of a minimal plot that causes this problem
b) your .eps file output (so I can compare it against mine).
Mike
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Re: [Matplotlib-users] Bug exporting mathtext to eps file in 0.91.2 on windows
Unfortunately, I'm still unable to reproduce the problem myself. Have
you tried installing the CM fonts (copying them to C:\Windows\Fonts)?
Maybe GS is trying to re-embed them and can't find them.
Cheers,
Mike
Mark Bakker wrote:
I have confirmed that it is a bug in (at least the windows version) of
mpl 0.91.2.
When saving eps files, and using mathtext, the cm fonts don't get
saved, and the
greek symbols (and others I presume) don't show up in the eps file.
This works in mpl 0.90.1, where the eps file does store the fonts.
%%BeginFont: Cmmi10
When running the same problem with 0.91.2, the fonts are not stored.
Either using ps.fonttype 3 or 42.
Anybody who can fix this?
Thanks, Mark
On Wed, Mar 19, 2008 at 11:21 AM, Bernhard Voigt
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote:
Hi Mark!
The problem seems to be that the computer modern font (cm) is not
included in the eps file. The snipped of the eps file I sent before
defines the font cmmi10:
%!PS-Adobe-3.0 Resource-Font
%%Title: cmmi10
%%Copyright: Copyright (C) 1994, Basil K. Malyshev. All Rights
Reserved.012BaKoMa Fonts Colle
ction, Level-B.
%%Creator: Converted from TrueType by PPR
.
/FontName /Cmmi10 def
And later, when the \chi glyph should be drawn, the font is
changed to:
/Cmmi10 findfont
16.0 scalefont
setfont
0.00 4.921875 moveto
/chi glyphshow
Which is the same in your file, but your file only contains the
Bitstreem Vera Sans font for the axis ticks. Cmmi10 is missing :-(
Your pdf, however, does contain the cmmi10 font, you can check via
file-properties-fonts.
You should have the following in your matplotlibrc file (well, you
said you have it, but let me repeat):
mathtext.fontset : cm
mathtext.fallback_to_cm : True
ps.useafm : False
ps.fonttype : 3
Check the settings using the interpreter prompt:
In [10]: p.rcParams['mathtext.fontset']
Out[10]: 'cm'
etc...
Well, if they are all correctly set, it's probably a bug in the ps
backend not including the mathtext font.
A workaround would be to convert the pdf file to ps (either use
command line options of acroread or print to file), edit the ps file
to be a eps by changing the header to %!PS-Adobe-2.0 EPSF-2.0 and make
sure the bounding box is specified (see
http://www.postscript.org/FAQs/language/node82.html for details)
Bernhard
On Wed, Mar 19, 2008 at 10:22 AM, Mark Bakker [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
Hello Mike -
Thanks for taking a look at this.
Easy example:
from pylab import *
plot([1,2,3])
text(1,1.5,r'$\chi$')
savefig('d:/temp/test.eps')
There shoud now be a line and the symbol chi.
Works great in the pdf file, not in the eps file.
Both are attached.
Strangely enough at the end of the eps file there are statements:
0.00 3.703125 moveto
/chi glyphshow
Which looks to me like writing chi.
I have now tried this on 4 windows machines, with different
installations of gsview, but it doesn't work on any.
It works fine under mpl vs. 0.90.1. That has the same statement
for chi, but defines chi internally inside the eps file (which is
much bigger).
Thanks, Mark
On Tue, Mar 18, 2008 at 7:09 PM, mdroe [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
It looks like it may be Windows-specific. I can create .eps
files with
math on mpl-0.91.2, Python 2.5, gs-7.07 on Linux without problems.
Someone with a Windows installation may need to look at this.
Just so I can have a deeper look -- can you please attach
a) the Python source of a minimal plot that causes this problem
b) your .eps file output (so I can compare it against mine).
Mike
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
-
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Re: [Matplotlib-users] Bug exporting mathtext to eps file in 0.91.2 on windows
On Wed, Mar 19, 2008 at 7:43 AM, Mark Bakker [EMAIL PROTECTED] wrote: I have confirmed that it is a bug in (at least the windows version) of mpl 0.91.2. When saving eps files, and using mathtext, the cm fonts don't get saved, and the greek symbols (and others I presume) don't show up in the eps file. This works in mpl 0.90.1, where the eps file does store the fonts. %%BeginFont: Cmmi10 When running the same problem with 0.91.2, the fonts are not stored. Either using ps.fonttype 3 or 42. Anybody who can fix this? My guess is that you are picking up an rc file where useafm is set to True. Michael suggested checking this rc setting but I did not see any response on this on list. Have you checked it? In the script that is causing you trouble, print out the value import matplotlib print 'afm setting', matplotlib.rcParams['ps.useafm'] If this is True, then you need to find your matplotlibrc file and set it to False. I can't imagine a windows vs other platform issue that could cause this since we do not use only matplotlib tools in our font conversion pipeline JDH - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Bug exporting mathtext to eps file in 0.91.2 on windows
Sorry, John, but here is my output, and it still doesn't work.
from pylab import *
rcParams['mathtext.fontset']
'cm'
rcParams['mathtext.fallback_to_cm']
True
rcParams['ps.useafm']
False
rcParams['ps.fonttype']
3
plot([1,2,3])
[matplotlib.lines.Line2D instance at 0x029F0120]
text(1,1.5,r'$\chi$')
matplotlib.text.Text instance at 0x029F6968
savefig('c:/temp/test.eps')
On the same machine, I get the correct eps file with 0.90.1.
So it really isn't my installation of GsView.
In the eps file created with 0.91.2, the cm fonts are not included, which I
think is causing the problem.
What happens when you guys read the attached eps file (created with commands
above)?
Do you see the chi symbol on the screen?
Thanks for looking into this,
Mark
On Wed, Mar 19, 2008 at 2:18 PM, John Hunter [EMAIL PROTECTED] wrote:
On Wed, Mar 19, 2008 at 7:43 AM, Mark Bakker [EMAIL PROTECTED] wrote:
I have confirmed that it is a bug in (at least the windows version) of
mpl
0.91.2.
When saving eps files, and using mathtext, the cm fonts don't get saved,
and
the
greek symbols (and others I presume) don't show up in the eps file.
This works in mpl 0.90.1, where the eps file does store the fonts.
%%BeginFont: Cmmi10
When running the same problem with 0.91.2, the fonts are not stored.
Either using ps.fonttype 3 or 42.
Anybody who can fix this?
My guess is that you are picking up an rc file where useafm is set to
True. Michael suggested checking this rc setting but I did not see
any response on this on list. Have you checked it? In the script
that is causing you trouble, print out the value
import matplotlib
print 'afm setting', matplotlib.rcParams['ps.useafm']
If this is True, then you need to find your matplotlibrc file and set
it to False.
I can't imagine a windows vs other platform issue that could cause
this since we do not use only matplotlib tools in our font conversion
pipeline
JDH
test.eps
Description: PostScript document
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Re: [Matplotlib-users] Bug exporting mathtext to eps file in 0.91.2 on windows
I don't see the character in the plot you sent. So at least that's
consistent. ;)
However, I still can't get things to break locally (on Linux, at least),
with all permutations of ps.fonttype, ps.useafm, ps.distiller, and
mathtext.fontset.
Can you send your entire matplotlibrc file? Perhaps there is some other
obscure setting that's interacting in a negative way.
Mike
Mark Bakker wrote:
Sorry, John, but here is my output, and it still doesn't work.
from pylab import *
rcParams['mathtext.fontset']
'cm'
rcParams['mathtext.fallback_to_cm']
True
rcParams['ps.useafm']
False
rcParams['ps.fonttype']
3
plot([1,2,3])
[matplotlib.lines.Line2D instance at 0x029F0120]
text(1,1.5,r'$\chi$')
matplotlib.text.Text instance at 0x029F6968
savefig('c:/temp/test.eps')
On the same machine, I get the correct eps file with 0.90.1.
So it really isn't my installation of GsView.
In the eps file created with 0.91.2, the cm fonts are not included,
which I think is causing the problem.
What happens when you guys read the attached eps file (created with
commands above)?
Do you see the chi symbol on the screen?
Thanks for looking into this,
Mark
On Wed, Mar 19, 2008 at 2:18 PM, John Hunter [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
On Wed, Mar 19, 2008 at 7:43 AM, Mark Bakker [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
I have confirmed that it is a bug in (at least the windows
version) of mpl
0.91.2.
When saving eps files, and using mathtext, the cm fonts don't
get saved, and
the
greek symbols (and others I presume) don't show up in the eps file.
This works in mpl 0.90.1, where the eps file does store the fonts.
%%BeginFont: Cmmi10
When running the same problem with 0.91.2, the fonts are not stored.
Either using ps.fonttype 3 or 42.
Anybody who can fix this?
My guess is that you are picking up an rc file where useafm is set to
True. Michael suggested checking this rc setting but I did not see
any response on this on list. Have you checked it? In the script
that is causing you trouble, print out the value
import matplotlib
print 'afm setting', matplotlib.rcParams['ps.useafm']
If this is True, then you need to find your matplotlibrc file and set
it to False.
I can't imagine a windows vs other platform issue that could cause
this since we do not use only matplotlib tools in our font conversion
pipeline
JDH
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
-
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[Matplotlib-users] Animation - Tk
All, Alright I've made some progress here improving upon the example. (Codes at the bottom). So it looks like I've started a writing a wrapper class around the plot command that continuously updates it's data by itself without having to write extra code. To me, using the subplot commands like set_xdata and set_ydata, should automatically update the graph, as I really don't like dealing with that myself. So what's happening below is that I'm starting two threads along with the Tkinter user thread. The first thread watches for changes in the data and the second actually induces changes forever. I know that the way I'm doing all this is a) quick and dirty b) really bad c) un-pythonic and d) it closes off all the current methods to plot etc, which if I need to continue developing this, I'll open them up as well the best I can. So that brings me to my next question. Is all this necessary? Is there a simpler way to make auto-updating graphs without all of the lines of outside code? One last question, if anyone runs this, you'll notice that the graph stops updating whenever you use the menu, or move the tkinter window, does anyone have a clue to why this is? Thank you to everyone for your time. Regards, Kenneth Miller ~~~START CODE import sys import pylab as p import numpy as npy import time import Tkinter as Tk from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg import threading class SimplePlot: def __init__(self,root): f = matplotlib.figure.Figure(figsize=(5,4),dpi=100) self.ax = f.add_subplot(111) self.canvas = self.ax.figure.canvas # create the initial line canvas = FigureCanvasTkAgg(f, master=root) canvas.show() canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1) self.canvas = canvas toolbar = NavigationToolbar2TkAgg( canvas, root ) toolbar.update() canvas._tkcanvas.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1) manager = p.get_current_fig_manager() manager.window.after(100, self.run) def plot(self,x,y): line, = p.plot(x,y,animated=True,lw=2) self.x = x self.y = y self.line = line def run(self,*args): class MyThread(threading.Thread): def __init__(self,simplePlot): self.simplePlot = simplePlot print dir(self) threading.Thread.__init__(self) def run(self): background = self.simplePlot.canvas.copy_from_bbox(self.simplePlot.ax.bbox) # for profiling tstart = time.time() self.cnt = 0 while 1: # restore the clean slate background self.simplePlot.canvas.restore_region(background) # update the data self.simplePlot.line.set_ydata(self.simplePlot.y) # just draw the animated artist self.simplePlot.ax.draw_artist(self.simplePlot.line) # just redraw the axes rectangle self.simplePlot.canvas.blit(self.simplePlot.ax.bbox) if self.cnt==100: # print the timing info and quit print 'FPS:' , 100/(time.time()-tstart) self.cnt=0 tstart = time.time() self.cnt += 1 mt = MyThread(self) mt.start() class DataThread(threading.Thread): def run(self): import time i = 0.0 while 1: s.x = x s.y = npy.sin(x+i/10.0) time.sleep(0.01) i += 1.0 root = Tk.Tk() root.wm_title(Embedding) s = SimplePlot(root) #some data points x = npy.arange(0,2*npy.pi,0.01) y = npy.sin(x) s.plot(x,y) dt = DataThread() dt.start() Tk.mainloop() dt.join() ~~end code~ On Mar 14, 2008, at 12:46 PM, Kenneth Miller wrote: All, I've seen the examples for embedding matplot lib in Tk and the Tk animation example. However I've not yet been successful with creating an example where i can both animate data and stay in control of Tk. (The animation in tk example seems to lock the mainloop.) Does anyone have any advice or a quick example of a Tk app with an animated graph that doesn't lock the user out of Tk control? Regards, Kenneth Miller - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting with missing data?
import numpy as np a = ['','','',1.1,2.2] mask_a = [i == '' for i in a] b = np.ma.MaskedArray(a, mask=mask_a) Chris Withers wrote: Eric Firing wrote: Chris, Use masked arrays. See masked_demo.py in the mpl examples subdirectory. Hi Eric, I took a look at that, but it uses: import matplotlib.numerix.npyma as ma ...and matplotlib.numerix isn't listed in the API reference. Where are the docs for this? Specifically, what I have is an array like so: ['','','',1.1,2.2] I want to mask the strings out so I don't get ValueErrors raised when I call plot functions with that array. How should I do that? cheers, Chris -- [EMAIL PROTECTED] http://www.cafelamarck.it - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] plotting filled lines with missing data?
Chris, Both with respect to documentation and functionality, what you are encountering is the historical aspect of masked arrays as a tacked-on part of python numeric packages, and of matplotlib. Support and integration are improving, but still far from perfect. A largely new, and substantially different, implementation of masked arrays has been transplanted into numpy since the last release. Similarly, mpl got a heart transplant since the last release, and it has some implications for the way nans and masked arrays are handled. There is lots more room for fundamental work on both numpy masked arrays (e.g., moving core code to pyrex/cython or C to speed them up) and on mpl. Now with respect to your particular case here, trying to plot a filled line with gaps: poly_between has no notion of masked arrays at present. If it did, how should it behave? At the very least, additional arguments are needed to specify what should happen for fill-type plotting with missing values. If we can come up with a clear description of the behaviors that should be available, then maybe we can provide them in mpl. I would be happy to fix this gap in mpl's handling of gappy data, but I can't make it a priority use of my time right now. For a quick fix, it sounds like what you need is either a function to break up your data set into gapless chunks, each of which could be plotted by a call to fill, or a function (a variant of poly_between) that would replace the gap regions with top and bottom lines at the same place (the bottom level? the x-axis?) so the whole thing could be plotted in one call to fill, provided the patch outline is suppressed. I seem to recall someone else with a similar need in the past few months, so maybe someone on the list has a ready-made solution for you. Eric Chris Withers wrote: Eric Firing wrote: This is not doing what you think it is, Indeed, I guess I was seeing nans being treated as missing values rather than being masked... You should use numpy.masked_where(numpy.isnan(aa), aa). I am now ;-) However, I'm still running into problems when I try and plot the gappy data on a filled line as follows: dates = *an array of datetimes* values = *an array containing data values and a few nans* values = numpy.ma.masked_where(numpy.isnan(values),values) xs,ys = mlab.poly_between(dates,0,values) pylab.fill(xs,ys,'r') For starters, I get this warning: numpy\core\ma.py:609: UserWarning: Cannot automatically convert masked array to numeric because data is masked in one or more locations. ...and wherever a NaN occurs in the data, the line is plotted off the top of the axes. I want it to appear at 0 if there's no data. Well, ideally just not appear at all, but I'd settle for appearing at 0... Any ideas? cheers, Chris - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Why Is This Code Failing?
Here is the relevant code fragment:
for i in range(1, compList[0][16]):
pylab.hold(True)
if compList[0][4] == 'Decay S-Curve':
testFunctions.zCurve(compList[0][10],compList[0][9])
elif compList[0][4] == 'Bell Curve':
testFunctions.gaussCurve(compList[0][14],compList[0][14])
elif compList[0][4] == 'Growth S-Curve':
testFunctions.sCurve(compList[0][8],compList[0][11])
elif compList[0][4] == 'Beta':
testFunctions.betaCurve(compList[0][13],compList[0][12],compList[0][14])
elif compList[0][4] == 'Data':
continue
elif compList[0][4] == 'Linear Increasing':
testFunctions.linearIncrCurve(compList[0][8],compList[0][11])
elif compList[0][4] == 'Linear Decreasing':
testFunctions.linearDecrCurve(compList[0][10],compList[0][9])
elif compList[0][4] == 'Left Shoulder':
testFunctions.leftShoulderCurve(compList[0][10],compList[0][11],compList[0][9])
elif compList[0][4] == 'Trapezoid':
testFunctions.trapezoidCurve(compList[0][8],compList[0][10],compList[0][11],compList[0][9])
elif compList[0][4] == 'Right Shoulder':
testFunctions.rightShoulderCurve(compList[0][8],compList[0][10],compList[0][11])
elif compList[0][4] == 'Triangle':
testFunctions.triangleCurve(compList[0][8],compList[0][13],compList[0][9])
elif compList[0][4] == 'Singleton':
testFunctions.singletonCurve(compList[0][13],compList[0][14])
elif compList[0][4] == 'Rectangle':
testFunctions.rectangleCurve(compList[0][8],compList[0][10],compList[0][11],compList[0][9])
elif compList[0][4] == 'Outcome':
testFunctions.outcomeCurve()
pylab.savefig(curVar+'.png')
pylab.hold()
When it runs in the test script the first curve is plotted in a matplotlib
window and the program pauses until I close that window by clicking on the
upper right button on the frame. Then this traceback is displayed:
Traceback (most recent call last):
File termset-test-data.py, line 391, in ?
testCode()
File termset-test-data.py, line 388, in testCode
pylab.hold()
File /usr/lib/python2.4/site-packages/matplotlib/pyplot.py, line 334, in
hold
rc('axes', hold=b)
File /usr/lib/python2.4/site-packages/matplotlib/pyplot.py, line 74, in
rc
matplotlib.rc(*args, **kwargs)
File /usr/lib/python2.4/site-packages/matplotlib/__init__.py, line 712,
in rc
rcParams[key] = v
File /usr/lib/python2.4/site-packages/matplotlib/__init__.py, line 552,
in __setitem__
cval = self.validate[key](val)
File /usr/lib/python2.4/site-packages/matplotlib/rcsetup.py, line 43, in
validate_bool
raise ValueError('Could not convert %s to boolean' % b)
ValueError: Could not convert None to boolean
What I want is to have all curves from 1 to the maximum number (in
compList[0][16]) plotted on the same set of axes, then save that figure and
go on to the next one.
Is my problem an indentation error at the end of the IF...ELIF tests?
TIA,
Rich
--
Richard B. Shepard, Ph.D. | IntegrityCredibility
Applied Ecosystem Services, Inc.|Innovation
http://www.appl-ecosys.com Voice: 503-667-4517 Fax: 503-667-8863
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[Matplotlib-users] Efficient scatter() w/ markers from plot()?
I need to efficiently plot a set of x,y points where each point has a different color. I tried multiple calls to plot() with a single point each but that is way too slow. I switched to using scatter() and passing in a list of colors which works great. However, I'd really like to have the marker options from plot() (things like '+' and 'x') which don't work w/ scatter. What's the easiest way to get the markers from plot() with the efficiency (and multi-colors) from scatter? Thanks, Ted - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
