[Matplotlib-users] index out of bounds if X not equals to y
hi all I have a little script who just plot some tripet (random triplet) but I have a index out of bound What I don't understand is if Xl is diff of Yl , I have that error Traceback (most recent call last): File test_plot3D.py, line 26, in module ax.plot_wireframe(X, Y, Z) File /usr/lib/python2.5/site-packages/matplotlib/axes3d.py, line 562, in plot_wireframe txlines = [tX[i] for i in cii] IndexError: index out of bounds if there equals, all is perfect, but I haven't that. there is the script import numpy import pylab as p import matplotlib.axes3d as p3 import random data = [] Xl = 10 Yl = 40 #if Yl = Xl , all is ok #create data for i in range(Xl): for j in range(Yl): data.append( (i,j,int( random.random()*10 ) ) ) X, Y = numpy.meshgrid(p.arange(0, Xl, 1), p.arange(0, Yl, 1)) Z = numpy.zeros( (Xl, Yl) ) for d in data: x, y, z = d Z[x, y] = z fig = p.figure() ax = p3.Axes3D(fig) ax.plot_wireframe(X, Y, Z) p.show() any help. thanks. a++ - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] . Newbie. Interactive and saving plots to file
[EMAIL PROTECTED] ha scritto: The question is, do people wanting to do this have to edit the matplotlibrc and restart Python each time, or is there some other way? Try to look for savefig() m. -- Massimo Sandal University of Bologna Department of Biochemistry G.Moruzzi snail mail: Via Irnerio 48, 40126 Bologna, Italy email: [EMAIL PROTECTED] tel: +39-051-2094388 fax: +39-051-2094387 begin:vcard fn:Massimo Sandal n:Sandal;Massimo org:University of Bologna;Department of Biochemistry adr:;;Via Irnerio 48;Bologna;;40126;Italy email;internet:[EMAIL PROTECTED] tel;work:+39-051-2094388 tel;fax:+39-051-2094387 x-mozilla-html:FALSE version:2.1 end:vcard - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] index out of bounds if X not equals to y
On Wednesday 11 April 2007 03:28:09 elekis wrote: Hi, Just some quick comments: 1. learn list comprehensions, they're far faster than regular loops. data = [(i,j,int(numpy.random.random()*10)) for i in range(XI) for j in range(JI)] 2. if you don't really need the triplets, but just the random part, just use: Z = (numpy.random.random(XI*YI)*10).astype(int).reshape(Xl,Yl) 3. It's more efficient to use numpy.empty than numpy.zeros to initialize an array you're going to fill afterwards. 4. You may have found a bug in plot_wireframe, actually. The code doesn't look quite right. My understanding is that the 3d part is not really supported, either... Hope it helps. - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] legend for a plot with markers every 20th data point?
Hi there, say, I have x and y data like this (the real data I am working with is from numerical simulations, though): from numpy import arange, sin x = arange( 0., 1., 0.001 ) y = sin( 50*x ) Now, a line plot would not look very decent because of the 1000 overlapping markers: plot(x, y, '-ro') Now, I'd rather have the same plot with a marker symbol only every 20th data point. Of course, I can easily achieve this by slicing through my data set and making two plots, one for the line and another one for the markers: line = plot(x, y, '-r') markers = plot(x[::20], y[::20], 'ro') Note that just doing a plot(x[::20],y[::20],'-ro') would 'distort' the plot because the markers are being linked by straight lines. What fails me is how to make a legend with the appropriate 'combined' line style '-ro'? I have tried to supply the legend statement with that linestyle: legend( ['-ro'], ['data'] ) but it really expects a list of line instances, so that did not work. Thanks for your suggestions, Maddox - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] . Newbie. Interactive and saving plots to file
[EMAIL PROTECTED] wrote: I edited the matplotlibrc to interactive: False and backend: Agg, and it works great. (produces .png) no need. as the name implies, TKagg is already using agg internally, so you can just use pylab.savefig (or better yet, figure.savefig), and get the same high quality PNG. No need to switch back-ends. The plain Agg back-end is there for things like web apps, where you may not be able to run a GUI at all. -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/ORR(206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [EMAIL PROTECTED] - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib and py2exe
Hi Werner, I tried what you suggested, using the setup file you had provided for simple_plot.py. But I get the following error, what should I do abt this? Traceback (most recent call last): File simple_plot.py, line 1, in ? File pylab.pyo, line 1, in ? File matplotlib\pylab.pyo, line 203, in ? File matplotlib\axes.pyo, line 16, in ? File matplotlib\axis.pyo, line 19, in ? File matplotlib\patches.pyo, line 42, in ? File matplotlib\patches.pyo, line 79, in Patch File matplotlib\cbook.pyo, line 352, in dedent AttributeError: 'NoneType' object has no attribute 'splitlines' Could you please tell me what I should do? Thanks a lot, Archana. On 4/9/07, Werner F. Bruhin [EMAIL PROTECTED] wrote: Hi Emmanuel, Maybe your problem has to do with your enthought build of wxPython. I use standard builds from wxPython site. Emmanuel wrote: when putting the full path of wxmsw26u_vc_enthought.dll in setup.py like this data_files = [(lib\\matplotlibdata, mpfiles), matplotlib.get_py2exe_datafiles(), # if you don't use the lib option You get two copies of matplotlibdata as you kept both of the two above lines active. You need to use the first one of you use the py2exe option to create a library.zip which I put into a sub-folder called 'lib' in the sample setup.py file. C:\\Python24\\Lib\\site-packages\\wx- 2.6.1.0-py2.4-win32.egg\\wx\\wxmsw26u_vc_enthought.dll, ##wxmsw26u_vc_enthought.dll, (prog\\, python4dll) ] You are also using an 'egg'. I seem to recall that py2exe does not yet really support that, but you might want to check on the py2exe list (e.g. on the gmane mirror of it at http://dir.gmane.org/gmane.comp.python.py2exe Werner - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Matplotlib conflicts with python-dateutils?
On Thursday 05 April 2007 17:04, Andrew Straw wrote: Joshua J. Kugler wrote: Installing an egg today, I got this message from easy_install: /usr/bin/easy_install:5: UserWarning: Module dateutil was already imported from /usr/lib/python2.4/site-packages/matplotlib-0.87.7-py2.4-linux-i686.egg/d ateutil/__init__.pyc, but /usr/lib/python2.4/site-packages/python_dateutil-1.1-py2.4.egg is being added to sys.path from pkg_resources import load_entry_point Investigating, it seems that Matplotlib includes python-dateutils wholesale in its egg, instead of depending on the python-dateutils egg and installing that, thus generating warning messages like these. Where did you get that matplotlib egg? Particularly on linux (which you appear to be using), distributing .eggs for matplotlib would be problematic because of all the 3rd party libraries required, so I didn't think they'd be officially distributed. Indeed, I don't see one for linux on the matplotlib download page. I create it myself using the supplied setupegg.py script. Would be possible to remove the dateutil module from future matplotlib eggs and simply rely on the python-dateutils egg? Since matplotlib doesn't require setuptools (other than for Python 2.3), there can be no install_requires field. (And even if we had it in the install_requires field, does your linux distribution's python-dateutil package include the egg info required for the install_requires field to work?) Gotcha. If you built the egg yourself, you can re-build it with dateutil installed and then matplotlib's setup.py file won't include its own dateutil. Ditto for pytz. Thanks for the tip! Installed pytz and dateutil, and the created egg is what I desired. Thanks! j -- Joshua Kugler Lead System Admin -- Senior Programmer http://www.eeinternet.com PGP Key: http://pgp.mit.edu/ ID 0xDB26D7CE PO Box 80086 -- Fairbanks, AK 99708 -- Ph: 907-456-5581 Fax: 907-456-3111 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] 3d plotting question
Hi,
I'm having problems plotting two different kind of graphs on the same
3D figure. Was hoping for some pointers.
Here's some basic test code, to demonstrate what I'd like to be able
to do.
import copy
import pylab as P
import matplotlib.axes3d as P3
def test() :
[X,Y] = P.meshgrid(P.linspace(-3,3,7),P.linspace(-3,3,7))
Z = copy.deepcopy(X)
Z1 = copy.deepcopy(X)
for i in xrange(len(X)) :
for j in xrange(len(X[0])) :
Z[i][j] = X[i][j]*Y[i][j]
Z1[i][j] = X[i][j]*Y[i][j] - 5
P.close('all')
fig = P.figure()
ax = P3.Axes3D(fig)
ax.scatter3D(P.ravel(X),P.ravel(Y),P.ravel(Z))
ax.set_xlabel('x')
ax.set_ylabel('y')
ax.set_zlabel('z=x*y')
P.show()
ax.plot3D(P.ravel(X),P.ravel(Y),P.ravel(Z1))
P.show()
Which produces an autoscale_view kwarg error appended below. I've
tried calling plot3D with scalex=False and scaleY=False but that
doesn't fix the problem. I've also tried creating a new axis (e.g.
ax1) and doing ax1.Plot3D to no avail. It seems to be an error w/in
matplotlib, but perhaps I'm misusing something. I haven't been able
to find much documentation for this at http://www.scipy.org/Cookbook/
Matplotlib/mplot3D so have resorted to playing around.
If anyone also knows how to pass color-marker info into scatter3D, I
have been able to create two of those on the same figure, so being
able to change the colors of each and just using scatter3D would be a
reasonable hack for my situation.
Advice always appreciated,
--b
In [25]: T.test()
---
exceptions.TypeError Traceback (most
recent call last)
/Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/
ipython console
/Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/
threeD.py in test()
18 ax.set_zlabel('z=x*y')
19 P.show()
--- 20 ax.plot3D(P.ravel(X),P.ravel(Y),P.ravel(Z1))
21 P.show()
22
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-
packages/matplotlib/axes3d.py in plot3D(self, xs, ys, zs, *args,
**kwargs)
488 def plot3D(self, xs, ys, zs, *args, **kwargs):
489 had_data = self.has_data()
-- 490 lines = Axes.plot(self, xs,ys, *args, **kwargs)
491 if len(lines)==1:
492 line = lines[0]
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-
packages/matplotlib/axes.py in plot(self, *args, **kwargs)
2129 lines = [line for line in lines] # consume the
generator
2130
- 2131 self.autoscale_view(scalex=scalex, scaley=scaley)
2132 return lines
2133
TypeError: autoscale_view() got an unexpected keyword argument 'scalex'
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/
site-packages/matplotlib/axes.py(2131)plot()
2130
- 2131 self.autoscale_view(scalex=scalex, scaley=scaley)
2132 return lines
-
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Re: [Matplotlib-users] 3d plotting question
I also seem to have some other 3D plotting problems. Again, following some of the demo/test advice in the cookbook, I tried things like import pylab as p import matplotlib.axes3d as P3 P3.test_surface() and get errors (seems Axes3D needs a figure, no?). I'm using matplotlib version 0.87.7. Any ideas? Thx, --b In [49]: P3.test_surface() --- exceptions.TypeError Traceback (most recent call last) /Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/ ipython console /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site- packages/matplotlib/axes3d.py in test_surface() 739 740 def test_surface(): -- 741 ax = Axes3D() 742 743 X,Y,Z = get_test_data(0.05) TypeError: __init__() takes at least 2 arguments (1 given) /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/ site-packages/matplotlib/axes3d.py(741)test_surface() 740 def test_surface(): -- 741 ax = Axes3D() 742 ipdb In [50]: P3.test_surface? Type: function Base Class: type 'function' String Form:function test_surface at 0x304a070 Namespace: Interactive File: /Library/Frameworks/Python.framework/Versions/2.4/lib/ python2.4/site-packages/matplotlib/axes3d.py Definition: P3.test_surface() Docstring: no docstring In [51]: P3.test_surface() --- exceptions.TypeError Traceback (most recent call last) /Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/ ipython console /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site- packages/matplotlib/axes3d.py in test_surface() 739 740 def test_surface(): -- 741 ax = Axes3D() 742 743 X,Y,Z = get_test_data(0.05) TypeError: __init__() takes at least 2 arguments (1 given) /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/ site-packages/matplotlib/axes3d.py(741)test_surface() 740 def test_surface(): -- 741 ax = Axes3D() 742 ipdb In [52]: P3.test_contour() --- exceptions.TypeError Traceback (most recent call last) /Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/ ipython console /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site- packages/matplotlib/axes3d.py in test_contour() 750 751 def test_contour(): -- 752 ax = Axes3D() 753 754 X,Y,Z = get_test_data(0.05) TypeError: __init__() takes at least 2 arguments (1 given) /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/ site-packages/matplotlib/axes3d.py(752)test_contour() 751 def test_contour(): -- 752 ax = Axes3D() 753 ipdb - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Bug in 0.9?
We had some working code were were using with 0.87, but when we try to use it with 0.90, we get the following error: File /usr/local/lib/python2.4/site-packages/EEIGraph/BaseGraph.py, line 250, in plotDate line = self.main_axes.plot_date( g[:,0], g[:,1] ) File /usr/lib/python2.4/site-packages/matplotlib-0.90.0-py2.4-linux-i686.egg/matplotlib/axes.py, line 2395, in plot_date self.xaxis_date(tz) File /usr/lib/python2.4/site-packages/matplotlib-0.90.0-py2.4-linux-i686.egg/matplotlib/axes.py, line 1564, in xaxis_date formatter = AutoDateFormatter(locator) UnboundLocalError: local variable 'locator' referenced before assignment It happens in this function: def xaxis_date(self, tz=None): Sets up x-axis ticks and labels that treat the x data as dates. tz is the time zone to use in labeling dates. Defaults to rc value. thislocator = self.xaxis.get_major_locator() if not isinstance(thislocator, DateLocator): locator = AutoDateLocator(tz) self.xaxis.set_major_locator(locator) thisformatter = self.xaxis.get_major_formatter() if not isinstance(thisformatter, DateFormatter): formatter = AutoDateFormatter(locator) self.xaxis.set_major_formatter(formatter) It seems to happen when thislocator is an AutoDateLocator, thus locator is an AutoDateLocator, thus locator is not set, but thisformatter is a AutoDateFormatter, which doesn't seem to satisfy isinstance(thisformatter, DateFormatter) I don't know enough about matplotlib internals to speculate further. Any hints? j -- Joshua Kugler Lead System Admin -- Senior Programmer http://www.eeinternet.com PGP Key: http://pgp.mit.edu/ ID 0xDB26D7CE PO Box 80086 -- Fairbanks, AK 99708 -- Ph: 907-456-5581 Fax: 907-456-3111 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Matplotlib 0.90.0 on OS-X with wxPython2.8.3
Hi all, I've got the MPL 0.90.0 installer on pythonmac working OK with: Python2.5 wxPython2.8.3 I accomplished this by removing: /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/backends/_wxagg.so Which disables the accelerator that doesn't work with wxPython 2.8 What we really need to do is get Ken's changes into a release, but I have my immediate needs met. -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/ORR(206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [EMAIL PROTECTED] - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] 3D curve and errors in axes3d
Hi, I'm replying to this older thread http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/ msg02100.html because it relates very much to my recent problem, posted at http:// www.mail-archive.com/matplotlib-users@lists.sourceforge.net/ msg03037.html. This problem seems more general than just the two circumstances you mentioned. I'm finding the problem w/any use plot3D in matplotlib.axes3d, e.g.: import copy import pylab as P import matplotlib.axes3d as P3 fig = P.figure() ax = P3.Axes3D(fig) ax.plot3D(P.ravel(X),P.ravel(Y),P.ravel(Z)) # this command will fail with the errors identical to those you report. I modified matplotlib's axis.py in a similar way as your suggestion. Line 2131 went from: self.autoscale_view(scalex=scalex,scaley=scaley) to: self.autoscale_view() #scalex=scalex,scaley=scaley) It took me a while to verify that this fixed the problem b/c I didn't at first realize I'd have to kill ipython and restart it (so that it sees the new axes.py file). I wonder what this change to axes.py will break. Any ideas? Thx, --b - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Bug in 0.9?
It is a bug that is fixed in svn. The this part of the names is incorrect. The revised function is: def xaxis_date(self, tz=None): Sets up x-axis ticks and labels that treat the x data as dates. tz is the time zone to use in labeling dates. Defaults to rc value. locator = self.xaxis.get_major_locator() if not isinstance(locator, DateLocator): locator = AutoDateLocator(tz) self.xaxis.set_major_locator(locator) formatter = self.xaxis.get_major_formatter() if not isinstance(formatter, DateFormatter): formatter = AutoDateFormatter(locator) self.xaxis.set_major_formatter(formatter) Similarly for yaxis_date. Eric Joshua J. Kugler wrote: We had some working code were were using with 0.87, but when we try to use it with 0.90, we get the following error: File /usr/local/lib/python2.4/site-packages/EEIGraph/BaseGraph.py, line 250, in plotDate line = self.main_axes.plot_date( g[:,0], g[:,1] ) File /usr/lib/python2.4/site-packages/matplotlib-0.90.0-py2.4-linux-i686.egg/matplotlib/axes.py, line 2395, in plot_date self.xaxis_date(tz) File /usr/lib/python2.4/site-packages/matplotlib-0.90.0-py2.4-linux-i686.egg/matplotlib/axes.py, line 1564, in xaxis_date formatter = AutoDateFormatter(locator) UnboundLocalError: local variable 'locator' referenced before assignment It happens in this function: def xaxis_date(self, tz=None): Sets up x-axis ticks and labels that treat the x data as dates. tz is the time zone to use in labeling dates. Defaults to rc value. thislocator = self.xaxis.get_major_locator() if not isinstance(thislocator, DateLocator): locator = AutoDateLocator(tz) self.xaxis.set_major_locator(locator) thisformatter = self.xaxis.get_major_formatter() if not isinstance(thisformatter, DateFormatter): formatter = AutoDateFormatter(locator) self.xaxis.set_major_formatter(formatter) It seems to happen when thislocator is an AutoDateLocator, thus locator is an AutoDateLocator, thus locator is not set, but thisformatter is a AutoDateFormatter, which doesn't seem to satisfy isinstance(thisformatter, DateFormatter) I don't know enough about matplotlib internals to speculate further. Any hints? j - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] 3D plotting lines / markers / colors question
Hi, What kwargs are available for plot3D and scatter3D? Thanks, --b - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] 3D curve and errors in axes3d
On Apr 11, 2007, at 4:47 PM, belinda thom wrote: Hi, I'm replying to this older thread http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/ msg02100.html because it relates very much to my recent problem, posted at http:// www.mail-archive.com/matplotlib-users@lists.sourceforge.net/ msg03037.html. This problem seems more general than just the two circumstances you mentioned. I'm finding the problem w/any use plot3D in matplotlib.axes3d, e.g.: FYI: It also is a problem when using plot3d --b - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Bug in 0.9?
On Wednesday 11 April 2007 15:49, Eric Firing wrote: It is a bug that is fixed in svn. The this part of the names is incorrect. The revised function is: def xaxis_date(self, tz=None): Sets up x-axis ticks and labels that treat the x data as dates. tz is the time zone to use in labeling dates. Defaults to rc value. locator = self.xaxis.get_major_locator() if not isinstance(locator, DateLocator): locator = AutoDateLocator(tz) self.xaxis.set_major_locator(locator) formatter = self.xaxis.get_major_formatter() if not isinstance(formatter, DateFormatter): formatter = AutoDateFormatter(locator) self.xaxis.set_major_formatter(formatter) Similarly for yaxis_date. Thank you! That did the trick! j -- Joshua Kugler Lead System Admin -- Senior Programmer http://www.eeinternet.com PGP Key: http://pgp.mit.edu/ ID 0xDB26D7CE PO Box 80086 -- Fairbanks, AK 99708 -- Ph: 907-456-5581 Fax: 907-456-3111 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] 3D curve and errors in axes3d
Belinda, John has checked in some fixes for axes3d recently, and your test code now runs with the version in svn--except for the problem that you should use P.show() only once in a given script. (I think there is some backend for which you can get away with using it more than once, but this is not good practice.) Eric belinda thom wrote: On Apr 11, 2007, at 4:47 PM, belinda thom wrote: Hi, I'm replying to this older thread http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/ msg02100.html because it relates very much to my recent problem, posted at http:// www.mail-archive.com/matplotlib-users@lists.sourceforge.net/ msg03037.html. This problem seems more general than just the two circumstances you mentioned. I'm finding the problem w/any use plot3D in matplotlib.axes3d, e.g.: FYI: It also is a problem when using plot3d --b - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] 3d plotting question
Thanks for the input. Its easy for me to patch my own machine, but for students in my class who are using lab machines, its more difficult. Hopefully I can get someone to upgrade the machines in the lab I'm using. (Its difficult to get facilities people to agree to update coursework installs mid- semester). Morale of my story: don't expect 3d plotting to necessarily work / be easy if you don't carefully test it first :-(. I too would be interested in robustifying / making more accessible the 3d stuff, but will have to wait until after the class I'm teaching ends. --b On Apr 11, 2007, at 6:57 PM, Tim Leslie wrote: Even in the lastest svn version these test methods are all broken to a greater or lesser degree (as I found out a couple of days ago). If I find time over the weekend I'll try to fix them up. In the mean time, if you change them to look something like fig = pylab.figure() ax = Axes3d(fig) ... etc it should get you one step closer to having them working. I'll post back here if/when I manage to get them cleaned up. Cheers, Tim - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] 3d plotting question
Hi Belinda,
I've been playing with 3D plots and scatter plots in the past few days
and I've been able to get them working. You should be able to pass in
a c=color parameter as you would for a normal 2d scatter plot. I've
been doing this and it's working for me.
Interesting.
I'm on Mac OS X 4.8.9, running Python 2.4.4, using Matplotlib 0.87.7
w/TkAgg (I might be using Wx, but would have to get a problem w/my
machine's and all the students' lab machines wx libraries updated).
When I try using the c='r' parameter, I run into problems. I also
tried c='red'. One big problem for me is that which kwargs can be
used where and what values they can take on is not well documented.
For instance, in plot3d (as opposed to plot3D) you can pass the
typical Matplotlib 'r.-' string and it just works. But in
plot_wireframe, for example, it appears you must use different kwargs
(for instance, linestyle='solid' and color='some RGB value'). I am
not sure about these notions, b/c I've had to deduce them from the
code and various google-based snippets.
That's why I'm asking for more guidance about the various kwarg usages.
Is there any good place to find more cohesive info online? The most
useful place I could find seemed to be in matplotlib's
collections.py, an __init__ function's documentation (that's where I
deduced, for instance, the linestyle and RGB color info). If there
isn't such a place, someone should probably modify the matplotlib 3d
cookbook. I'd be willing to do that but I'd first need to have a
better understanding about the various functions' kwargs :-).
I'll append a case I used to generate an error, as well as the error
reporting below. I'm also not quite sure how to use the errors that
are reported to help me track down where the problems might be, so if
anyone has some advice on that, it might help me better help myself
in the future.
As always, thx,
--b
Example Code:
-
import copy
import pylab as P
import matplotlib.axes3d as P3
def test() :
[X,Y] = P.meshgrid(P.linspace(-3,3,7),P.linspace(-3,3,7))
Z = copy.deepcopy(X)
Z1 = copy.deepcopy(X)
for i in xrange(len(X)) :
for j in xrange(len(X[0])) :
Z[i][j] = X[i][j]*Y[i][j]
Z1[i][j] = X[i][j]*Y[i][j] - 5
P.close('all')
fig = P.figure()
ax = P3.Axes3D(fig)
ax.Plot3D(ravel(X),ravel(Y),ravel(Z),c='r')
In [213]: T.test()
---
exceptions.AttributeErrorTraceback (most
recent call last)
/Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/
ipython console
/Users/bthom/belinda/mills/aicourse/material/week12/lec/examples/
threeDa.py in test()
11 Z1[i][j] = X[i][j]*Y[i][j] - 5
12 P.close('all')
13 fig = P.figure()
14 ax = P3.Axes3D(fig)
--- 15 ax.Plot3D(ravel(X),ravel(Y),ravel(Z),c='red')
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-
packages/matplotlib/axes3d.py in __getattr__(self, k)
660
661 def __getattr__(self, k):
-- 662 return getattr(self.wrapped,k)
663
664 def __setattr__(self, k,v):
AttributeError: Axes3DI instance has no attribute 'Plot3D'
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/
site-packages/matplotlib/axes3d.py(662)__getattr__()
661 def __getattr__(self, k):
-- 662 return getattr(self.wrapped,k)
663
ipdb
-
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[Matplotlib-users] Fwd: 3d plotting question
Forwarding this to the list
I'm curious if you run into another problem I recently reported. Can
you do, e.g.:
import copy
import pylab as P
import matplotlib.axes3d as P3
def test() :
[X,Y] = P.meshgrid(P.linspace(-3,3,7),P.linspace(-3,3,7))
Z = copy.deepcopy(X)
Z1 = copy.deepcopy(X)
for i in xrange(len(X)) :
for j in xrange(len(X[0])) :
Z[i][j] = X[i][j]*Y[i][j]
Z1[i][j] = X[i][j]*Y[i][j] - 5
P.close('all')
fig = P.figure()
ax = P3.Axes3D(fig)
ax.plot3d(ravel(X),ravel(Y),ravel(Z),'r.-')
or do you instead get an error in matplotlib's axes.py, complaining
about self.autoscale_view and a scalex parameter? For more on the
hack I made to axes.py file which then allowed me to use plot3d, see
http://www.mail-archive.com/[EMAIL PROTECTED]/
msg03041.html.
Thanks for providing more info.
--b
Begin forwarded message:
From: Richard Brown [EMAIL PROTECTED]
Date: April 11, 2007 8:41:37 PM PDT
To: belinda thom [EMAIL PROTECTED]
Subject: Re: [Matplotlib-users] 3d plotting question
On 12/04/07, belinda thom [EMAIL PROTECTED] wrote:
I also seem to have some other 3D plotting problems. Again, following
some of the demo/test advice in the cookbook, I tried things like
import pylab as p
import matplotlib.axes3d as P3
P3.test_surface()
I too just encountered the same problem - what is the last version of
mpl for which doing this worked? (I'm using 0.9 revision 3131)
--
Richard Brown
Ph.D. Candidate
Dept. of Mechanical Engineering
University of Canterbury, NZ
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Re: [Matplotlib-users] 3D curve and errors in axes3d
Thanks Eric! I'm kind of afraid to upgrade to the SVN version b/c I fear something else might break (I've yet to install matplotlib from source b/c of a few nagging Mac OS X issues). What would you recommend? There's also the issue of having to upgrade student machines for which I'm not admin. Grrr. --b On Apr 11, 2007, at 6:19 PM, Eric Firing wrote: Belinda, John has checked in some fixes for axes3d recently, and your test code now runs with the version in svn--except for the problem that you should use P.show() only once in a given script. (I think there is some backend for which you can get away with using it more than once, but this is not good practice.) Eric belinda thom wrote: On Apr 11, 2007, at 4:47 PM, belinda thom wrote: Hi, I'm replying to this older thread http://www.mail-archive.com/matplotlib- [EMAIL PROTECTED]/ msg02100.html because it relates very much to my recent problem, posted at http:// www.mail-archive.com/matplotlib- [EMAIL PROTECTED]/ msg03037.html. This problem seems more general than just the two circumstances you mentioned. I'm finding the problem w/any use plot3D in matplotlib.axes3d, e.g.: FYI: It also is a problem when using plot3d --b - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php? page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/matplotlib-users - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/matplotlib-users
