[Matplotlib-users] Interactive selecting a quadrilateral from a axes
Hi, I have a plot of an image of which I'd like to interactively select a quadrilateral. This is for a homography operation (perspective correction). It suffices if the quadrilateral can be dragged by only its vertices (display the vertices as rects or circled to click within). In principle I want to implement a tool similar to the "Perspective" tool of The GIMP in corrective mode. The whole image processing and geometric transformation is already implemented, but now I need a user interface. Since I'm already making heavy use of Matplotlib I'd like to stay within this. After the user applied the homography the next step is placing the calibration markers, which would be basically one axvline and two axhlines to be dragged to reference points on the previously perspective corrected image. How do I implement such interaction elements? Wolfgang -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Errorbars not drawn correctly in logarithmic scales
On Mon, 12 Mar 2012 15:51:15 -0500 Benjamin Root wrote: > Ah, finally figured it out. The issue is that your y-value for that > error bar is 9.114, but you want to plot error bars that are > +/-10.31. That line gets thrown out by matplotlib because you can't > plot at negative values for log scale. Yes, I came to the same conclusion. I think matplotlib should print some warning or raise some exception if confronted with data like that, it can't handle. > There is a trick that might > work. The set_yscale method has a kwarg "nonposy" which could be set > to "clip". You could also try setting to the "symlog" scale which > might let you get away with a negative value. I'll try that. Thanks Wolfgang -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Errorbars not drawn correctly in logarithmic scales
On Fri, 9 Mar 2012 11:19:15 -0600
Benjamin Root wrote:
> Can I have the data you used to produce these errorbars so I can test
> this bug?
Here's the data
# Fluence -sigma Signal... -sigma area
1127 48.32 9.114 10.31 0.1318
1.127e+04 482.9 35.96 16.15 0.4994
1.127e+05 4829 231.2 101.1 2.568
1.127e+06 4.829e+04 4631 1689 12.22
And here's the ploting tool source code (also used for generating the
linked PDF).
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# vim: filetype python
import sys, os, argparse
import math, numpy, scipy, scipy.optimize
import matplotlib, matplotlib.cm
import matplotlib.pyplot as pyplot
import pylab
def expmodel(p, x):
return p[0] + numpy.exp(p[1]*x)*p[2]
def experror(p, x, y):
return y - expmodel(p, x)
def linmodel(p, x):
return p[0] + p[1]*x
def linerror(p, x, y):
return y - linmodel(p, x)
if __name__ == '__main__':
optparse = argparse.ArgumentParser(description='plot raddark dat files
with errorbars and linear or exponential model regression plots',
prog=sys.argv[0])
optparse.add_argument('--xlabel', type=str, default='Particle Count')
optparse.add_argument('--ylabel', type=str, default='Signal')
optparse.add_argument('--title', type=str, default='')
optparse.add_argument('--outlier', '-O', action='append', type=str)
optfitgrp = optparse.add_mutually_exclusive_group()
optfitgrp.add_argument('--exp', '-e', action='store_true')
optfitgrp.add_argument('--lin', '-l', action='store_true')
optparse.add_argument('--log', action='store_true')
optparse.add_argument('files', type=str, nargs='+')
options = optparse.parse_args(sys.argv[1:])
data = [ numpy.loadtxt(filename) for filename in options.files ]
if options.outlier:
outlier = [ numpy.loadtxt(filename) for filename in
options.outlier ]
ax = pyplot.subplot(1,1,1)
if options.log:
ax.loglog()
ax.set_title(options.title)
ax.set_xlabel(options.xlabel)
ax.set_ylabel(options.ylabel)
ax.grid(True, 'both')
for f,d in zip(options.files, data):
ax.errorbar(d[..., 0], d[..., 2], d[..., 3], d[..., 1],
fmt='o', label=f)
if options.outlier:
for f,d in zip(options.outlier, outlier):
ax.errorbar(d[..., 0], d[..., 2], d[..., 3], d[..., 1],
fmt='+', label=f)
if options.exp or options.lin:
data_xs = numpy.concatenate( [ d[..., 0] for d in data ] )
data_ys = numpy.concatenate( [ d[..., 2] for d in data ] )
if options.outlier:
x_max = numpy.nanmax( numpy.concatenate((data_xs,
numpy.concatenate([ o[..., 0] for o in outlier ]))) )
x_min = numpy.nanmin( numpy.concatenate((data_xs,
numpy.concatenate([ o[..., 0] for o in outlier ]))) )
else:
x_max = numpy.nanmax(data_xs)
x_min = numpy.nanmin(data_xs)
x_ptp = x_max - x_min
xs = numpy.arange(x_min - 0.05*x_ptp, x_max + 0.05*x_ptp,
x_ptp/1.)
if options.exp:
p = scipy.optimize.leastsq(experror,
[numpy.nanmin(data_ys), 1e-6/x_ptp, 1./numpy.ptp(data_ys)], args=(data_xs,
data_ys))
ys = expmodel(p[0], xs)
if options.lin:
p = scipy.optimize.leastsq(linerror,
[numpy.nanmin(data_ys), 1./x_ptp, 1./numpy.ptp(data_ys)], args=(data_xs,
data_ys))
ys = linmodel(p[0], xs)
ax.plot(xs, ys, label="fit")
ax.legend(loc='upper left')
pyplot.show()
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Re: [Matplotlib-users] Errorbars not drawn correctly in logarithmic scales
On Thu, 8 Mar 2012 19:47:05 -0600 Benjamin Root wrote: > Which version of matplotlib are you using? Also, are you setting the > log scale before (preferred) or after (won't work) the call to hist()? Version is matplotlib-1.1.0, installed through standard Gentoo ebuild. And the scale parameters are set before all the drawing calls. Wolfgang -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Errorbars not drawn correctly in logarithmic scales
Hi, I've a problem with some errorbars not drawn correctly in (double) logarithmic plots. See this PDF for an example: http://dl.wolfgang-draxinger.net/C6_77MeV_raddamage.pdf The vertical errorbar for the datapoint at x=1e3 are not drawn. Similar also happens for some horizontal errorbars. Using the very same drawing commands, except switching to a logarithmic scaling the errorbars draw just fine. So what's going on there? Wolfgang Draxinger -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] imshow of scalar 2D array using a shared color scale
Hi, I've got a datasets of a pixel particle detector for a number of independent events. I'd like to show them in a row but have them all use the same value and thus color range. What's the most straigtforward way to do this? Cheers, Wolfgang Draxinger -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] qt config dialogue
Dear all, Is it possible to make a qt config dialogue that works in a similar fashion to the backend of matplotlib when using with ipython --pylab. It should be able to interact with plots (pressing buttons changing stuff in the plot) as well as not block ipython. Is that possible. Are there examples to do that? Cheers Wolfgang -- Forrester Wave Report - Recovery time is now measured in hours and minutes not days. Key insights are discussed in the 2010 Forrester Wave Report as part of an in-depth evaluation of disaster recovery service providers. Forrester found the best-in-class provider in terms of services and vision. Read this report now! http://p.sf.net/sfu/ibm-webcastpromo ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] buttons in toolbar2
Dear all, I have had a quick look at changing the buttons in toolbar2. This seems to be backend dependent. It would be really nice to make it possible to add buttons to the toolbar and be backend agnostic. The button should have a picture and a hovertext associated with it. Is it very hard to include this in the next release of matplotlib? Cheers Wolfgang -- Xperia(TM) PLAY It's a major breakthrough. An authentic gaming smartphone on the nation's most reliable network. And it wants your games. http://p.sf.net/sfu/verizon-sfdev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] [matplotlib-users] probability map
Dear all,
I have tried to make 1 sigma, 2 sigma and 3 sigma contours of my data.
To calculate the levels. I took my 2d array (lets call it data).
I sorted sortData = sort(data.flatten())[::-1]
I normalized it: normSortData = sortData / sum(sortData)
Then I did the cumulative sum: cumSum = np.cumsum(normSortData)
Then I found the id with : idx = cumSum.searchsorted(0.68 this is 1
sigma for 2 sigma its 0.954)
Then I got my level: level = sortData[idx]
I tried this out with a 2d gaussian and that level for 1 sigma was two
much. It worked when I gave it 2*level(1 sigma).
I don't know what's going wrong.
Cheers
Wolfgang
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[Matplotlib-users] rotate patch (rectangle)
Hello, I have tried in vain to rotate a rectangle patch. I tried to use AffineTransform2D.rotate_deg(20.) and apply it to the Rectangle with set_transform. If I add the patch it doesnt show. What is the right course of action here. Cheers Wolfgang -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] dropdown menu
Hello, Now that I have found the awesome widgets in matplotlib I want more: dropdown menus? will that come at some stage? Cheers Wolfgang -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Interactive use of matplotlib in ipython
That is really awesome, I wrote myself a little script today using the poly_editor, data browser and the widgets. This is really cool. I have one problem however, with the widgets I have buttons to switch between different data sets and like in the button demo i just update the plotdata rather than creating a new plot object. I then try to ax.autoscale_view, but that doesnt do anything even after a fig.canvas.draw() update. any ideas? Cheers Wolfgang On Thu, Feb 18, 2010 at 1:18 AM, John Hunter wrote: > On Wed, Feb 17, 2010 at 7:42 AM, Wolfgang Kerzendorf > wrote: > > Hello, > > > > I would like to build a bit of an interactive fitter with matplotlib and > ipython (in pylab environment). I would like to have a a function, which > takes x and y as input, then plots these and fits a line to it (just numpy > polyfit). if I click a point it will be removed from the fit pool and the > line will be refitted (optionally after pressing 'f'). when I'm done I can > press 'q' or close the window and the function will come to an end and spit > out the fitting parameter. > > I tried this a year or two ago and I had terrible problems with getting > stopping the event loop and waiting for the interactive part to finish and > then finish the function. I'm running os 10.6 and use the wx backend (or mac > os x, if that's easier). Can you point me to an example or give me a crude > overview of how to do that in the right way. Is that understandable? > > Take a look at > > > http://matplotlib.sourceforge.net/examples/event_handling/poly_editor.html > > You can use the 'i' and 'd' keys to insert and delete vertexes, can > click and drag them to move them. > > See also the event handling tutorial at > > http://matplotlib.sourceforge.net/users/event_handling.html > > > JDH > -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Interactive use of matplotlib in ipython
Hello, I would like to build a bit of an interactive fitter with matplotlib and ipython (in pylab environment). I would like to have a a function, which takes x and y as input, then plots these and fits a line to it (just numpy polyfit). if I click a point it will be removed from the fit pool and the line will be refitted (optionally after pressing 'f'). when I'm done I can press 'q' or close the window and the function will come to an end and spit out the fitting parameter. I tried this a year or two ago and I had terrible problems with getting stopping the event loop and waiting for the interactive part to finish and then finish the function. I'm running os 10.6 and use the wx backend (or mac os x, if that's easier). Can you point me to an example or give me a crude overview of how to do that in the right way. Is that understandable? Cheers Wolfgang -- SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] building svn on os x 10.6
Hi, I have found a bug that might or might not be related to my setup, when building matplotlib from svn: When building I get the following error: In file included from src/ft2font.h:13, from src/ft2font.cpp:1: /usr/local/include/ft2build.h:56:38: error: freetype/config/ ftheader.h: No such file or directory I can solve this problem by making a soft link from /usr/local/include/ freetype2/freetype to /usr/local/include/. It doesnt seem to know that there is a freetype2 directory and then a freetype directory. I hope that helps Wolfgang -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] MacOSX backend problems with picker
thon2.5/site-
packages/matplotlib-0.98.4-py2.5-macosx-10.3.egg/matplotlib/
patches.pyc in draw(self, renderer)
267 if not self.get_visible(): return
268 #renderer.open_group('patch')
--> 269 gc = renderer.new_gc()
270
271 if cbook.is_string_like(self._edgecolor) and
self._edgecolor.lower()=='none':
/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-
packages/matplotlib-0.98.4-py2.5-macosx-10.3.egg/matplotlib/backends/
backend_macosx.pyc in new_gc(self)
66
67 def new_gc(self):
---> 68 self.gc.reset()
69 return self.gc
70
RuntimeError: CGContextRef is NULL
-
I'm also using start_event_loop and stop event_loop to make the
application blocking when starting and unblocking when finished. The
application works its just annoying seeing this traceback everytime I
select or deselect a point.
Another thing that sort of worked under linux was that when I clicked,
it would change immediatley and not wait until I do a refit. Any ideas
on what to do there?
Thanks
Wolfgang
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[Matplotlib-users] Ticklabels
Dear all,
I find it incredibly hard to work with tick labels in matplotlib (on
matplotlib 0.98 @ OS X 10.5.4) (It might well be that I haven't
stumbled across the right solution yet and it is really easy ;-) ). I
want to first of all change the axis so it displays the normal number
as ticks and not 0, 1 ,2 ,3 + 6.35e5 or something. I managed that by
reading the ticks and then converting it to strings and use the
set_ticklabels to get that. The second thing is that I want to make
the font smaller, e. g. to 'x-small' at the moment I am using a for
loop to loop through all xticklabels which is allright but imho looks
to complicated to do something as simple as that.
I also want to change the padding between the axis and the labels, but
all my attempts at finding the set_pad method have failed because none
of the axis objects I could think of had that method.
So here's my workaround for the first two things (each subplot is one
small window of 6 subplots):
#preparing the subplots()
figure=gcf()
subplots=[]
for i in range(6):
subplots.append(figure.add_subplot(23*10+i+1))
for i,line in enumerate(line_data):
subplots[i].axes.ticklabel_format(style='sci',axis='x')
subplots[i].plot(line[:,0],line[:,1])
new_ticks=map(str,subplots[i].axes.get_xticks())
subplots[i].axes.set_xticklabels(new_ticks)
for ilabel in subplots[i].axes.get_xticklabels():
ilabel.set_fontsize('x-small')
--
Oh and while I'm at it: Is there a function that plots a two
dimensional array?
Thanks in advance
Wolfgang
P.S.: I already looked through the mailing list for the padding issue
but it only mentioned set_pad which I could not find
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Re: [Matplotlib-users] matploblib communication problem, graphics question
thanks for your answer, i have come to understand that matplotlib is not
dedicated to raster image manipulation. a nice person pointed out to me
how to do that in cairo:
img = cairo.ImageSurface.create_from_png( 'c:/temp/tel-hotline.png' )
width = img.get_width()
height = img.get_height()
imgpat = cairo.SurfacePattern(img)
scaler = cairo.Matrix()
#1 = 100%; 2 = 50%;0.5 = 200%
scaler.scale(3,0.5)
imgpat.set_matrix(scaler)
#set resampling filter
imgpat.set_filter(cairo.FILTER_BEST)
canvas = cairo.ImageSurface(cairo.FORMAT_ARGB32,320,240)
ctx = cairo.Context(canvas)
ctx.set_source(imgpat)
ctx.paint()
canvas.write_to_png( 'c:/temp/helo-modified.png' )
that's a bit of code but i'm writing a wrapper `def scale_image()`
anyhow. the data flow seems reasonable. alas, it only works for *.png,
no *.jpg support. still i guess i'll go with cairo as it's seemingly
used inside firefox3 and does impressively good scaling.
cheers & ~flow
Gregor Thalhammer wrote:
> > [had to delete an endless amount of stuff not related to matplotlib]
>
> matplotlib is _not_ a dedicated image manipulation package, so please
> don't blame it that you don't manage to easily use it as such one.
> However, matplotlib indeed offers high quality image scaling abilities
> (at the moment not for downscaling) due to the use of Agg.
>
> If you want a simpler solution, try this:
>
> import wx
> img = wx.Image('your image.jpg')
> scale = 2
> img.Rescale(img.Width * scale, img.Height * scale, wx.IMAGE_QUALITY_HIGH)
> img.SaveFile('your scaled image.jpg')
>
> Gregor
>
>
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[Matplotlib-users] matploblib communication problem, graphics question
matploblib communication problem, graphics question == i've had a hard time today to drill down on some infos about matplotlib of http://matplotlib.sourceforge.net/. this is an sf.net-managed project, its mailing lists are managed by gnu mailman in a pre-1994 version. still there is a sf.net standard forum interface, which however denies me to post. i've set up an account on sourceforge---not an experience i need; boarding an intercontinental flight is swift in comparison. but having an account on sf.net is not enough to post to a mailing list there, so i filled out a second longish form to subscribe to the list thru the mailman interface. i had to re-enter my email address. now what is left to me is to try writing directly to matplotlib-users@lists.sourceforge.net and then scoop it up on http://sourceforge.net/mailarchive/forum.php?forum_name=matplotlib-users as it is so incredibly hard to make oneself heard on the matplotlib list, i realized that questions from outsiders are maybe not welcome, so i do a cross-post to reach more audience. i need to do some raster-image scaling and i've been hunting hi and lo for a python library that can do that. so far choices are (in order of perceived aptness):: imagemagick of old, pythonware.com/products/pil, antigrain.com, matplotlib, cairo of cairographics.org. Cairo is definitely may favorite here. i know with certainty that cairo is good at scaling images, as firefox3 is using it to achieve a smoothness and readability in scaled images that rivals the quality of safari’s. but i have been unable to uncover any information about raster-image scaling in cairo---can’t be, right? an open source project that becomes part of firefox3 and i can’t find out how to use their flagship functionality? so i went to matplotlib. i now have these methods to open image files with matplotlib:: def get_image_jpg(): import Image from pylab import * import numpy print dir( numpy ) from numpy import int8, uint8 # these lines are incredible -- just open that damn jpg. can be as simple as `load(route)` -- ALL the pertinent # information well be in time derived from the route and the routed resource structure (the router, and the # routee). pls someone giveme a `MATPLOBLIB.read()`, a `MATPLOBLIB.load()`, or a `MATPLOBLIB.get()` already. image = Image.open( image_locator ) rgb = fromstring( image.tostring(), uint8 ).astype( float ) / 255.0 # rgb = resize( rgb,( image.size[ 1 ], image.size[ 0 ], 3 ) ) rgb = resize( rgb,( 100, 150, 3 ) ) imshow( rgb, interpolation = 'nearest' ) axis( 'off' ) # don’tdisplaytheimageaxis show() def get_image_png( image_locator ): from pylab import imread as _read_png from pylab import imshow as _show_image from pylab import gray from pylab import mean a = imread( image_locator ) #generates a RGB image, so do aa=mean(a,2) # to get a 2-D array imshow(aa) gray() quite incredible, right? it can somehow be done, but chances are you drown in an avalanche of boiler plate. and sorry for the shoddy code, i copied it from their website. so they use pil to open an image file. pil’s image scaling is 1994, and the package is hardly maintained and not open. yuck. whenever you have a question about imaging in python people say ‘pill’ like they have swallowed one. let’s face it, pil is a bad choice to do graphics. here i did install pil, because matplotlib seemed to be basically handling raster-images and image transformations. the matplotlib people have the nerve to put a short doc to their root namespace items, as are, `axhspan`, `cla`, `gcf`, and such more. this interface is hardly usable. it shouldn’t be that hard to open an image file in an image manipulation library. nobody wants to maintain that kind of sphpaghetti. i haven’t been succesful so far to find out how to scale an image in cairo or matlotlib, or an other alternative. please don’t sugggest doing it with pil or imagemagick, i won’t answer. is there any coherent python imaging interest group out there? can i do it with pyglet maybe? cheers & ~flow - 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] Backend Control
Hello, I have some problem with the backend controls. Well to be perfectly honest I don't know if they are able to do what I want from them. As far as I understand the pylab package helps me create plots (and the windows from the different backends) without me having to write my own wxpython, gtk, qt, . application. The matplotlib package provides the plot functions and also has the backend interfaces, etc. In my opinion a "function" called with the same argument twice should always give the same result. That doesnt happen in matplotlib/pylab (probably more pylab). If I plot something with pylab.plot and then pylab.show the first time. The python interpreter halts and waits until the function show is done(me clicking quit in the window). The second time however it somehow calls the function show in the background but does not wait until the execution of show is finished. I don't know what has changed since the first time and if there are generic control features for different backends. Do I have to write my own wx application to get more control over the window or are there some features present already. It could well be that my view of the matter is wrong and that I misunderstand somethings. Please advise Wolfgang - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Controlling the wxpython matplotlib-frame
Hello all, I have trouble with one of my scripts that uses matplotlib when using python or ipython. The first time it opens, it does not hand the control back o the shell and can be used to work on the matplotlib figure interactively (I use an event handler and picker objects to change my plots) so it works really well. After I close the window the control is given back to the shell. This is how I want it to work, however at the second time the matplotlib plot opens the shell does not stop anymore, the script continues. When I used GTKAgg on my old linux box I had the same issue and bound a key to pylab.get_current_figure_manager().destroy(), which looked like a hack to me but worked. This does not work anymore with wxPython, because the next time I open a plot I get an exception: PyDeadObjectError: The C++ part of the FigureFrameWxAgg object has been deleted, attribute access no longer allowed. I also think destroying the figure_manager is not the right way to do that. Whats a goog solution for this? Thanks in advance Wolfgang P.S.: I know I posted a similar thing yesterday, but I thought rephrasing the question might help with finding the solution - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] ipython, pylab quitting again after first time
Hello, I have some trouble with ipython and matplotlib. I create a figure in one of my functions that I call from ipython. The first time it runs fine and I can use the figure interactively (selecting/ deselcting points and so on). The second time I run it, the code doesnt stop but continues without halting at the show routine. I'm doing this on a Mac (10.5.2/ Intel). On my Linux machine I did pylab.get_current_figure_manager().destroy() and bound it to a key to prevent this. If I do this on the mac (WXAgg) The next time I want to plot it complains about a deleted C++ extension and doesnt plot at all. Please help Wolfgang - 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] OS X leopard scisoft and TkAgg backend
Dear all, I use the scisoft package on leopard 10.5.2 (it is a package that creates its own python framework and delivers astronomical tools). I have recompiled tcl tkk 8.4 and 8.5 (which in hindsight was probably not a good idea). I also installed matplotlib 0.91.2. If i open ipython --pylab and do : plot([1,2,3]). I get the following output: FigureCanvasAgg.draw RendererAgg.__init__ RendererAgg.__init__ width=640.0, height=480.0 RendererAgg.__init__ _RendererAgg done RendererAgg.__init__ done Segmentation fault thanks in advance Wolfgang - 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] multiple figures interactively
This might help you it destroys the whole window: pylab.get_current_fig_manager().destroy() and then you open it again with show Lee, Young-Jin wrote: > > Hi, > > I ’m writing a python program that draws figures one by one > interactively with the user’s input in dos mode. Basically, I give the > program a decision after each figure and then it draws the next one. > After the first figure, it got very much slowed down for the second > one and crashed for the third one. I feel like it has some memory > issues as I keep using ‘show’ after I close each. I used ‘clf()’ > before I draw a new one, but it doesn’t seem to help. Any idea? Thanks. > > Young Jin > > > > - > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > 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 > - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. 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] Fitting a curve
I know this is not completely matplotlib related but perhaps you can help me none the less: I want to fit a curve to a set of data. It's a very easy curve: y=ax+b. But I want errors for a and b and not only the rms. Is that possible. What tasks do you recommend for doing that. Thanks in advance Wolfgang - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] legend outside the plot
Is there any way to display a legend in a second window or outside the plot? thanks in advance Wolfgang - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] stop GTKAgg backend
I am sorry, here the better explanation: I have a scirpt to reduce data. from time to time it should bring up an interactive matplotlib figure and then when I close the window it should continue.it is important for me that the script actually stops when opening the window. The problem is (which I found out just now) I am running this in ipython and if I close the window the gtk.mainloop() stays active and doesnt let me continue my script. So i'm looking for a fucntion I can call to stop the backend thread. I know there is a thread called gtk.gdk.thread_leave but I need the appropriate TK object which is the window(or matplotlib_object or whatever) to call this function. I am happy to use another backend but I am fairly new to tk and gtk in python so I didnt see anything else. thanks in advance Wolfgang John Hunter wrote: > On 8/22/07, Wolfgang Kerzendorf <[EMAIL PROTECTED]> wrote: > >> Is there any way I can stop the mainloop of the gtkagg backend. i know >> there is a threads_leave thing but I neec the Tk object from matplotlib. >> The problem is that my script doesnt continue after the window has been >> closed >> > > I am not exactly sure what you are after ... Do you need to use > GTKAgg at all, or can you simply set your backend to TkAgg in your > matplotlibrc and leave it at that. If for some reason you need > GTKAgg, and then need to switch to TkAgg, it may be possible to do > this with the "switch_backend" function in pylab. I have done this on > occasion with success, but it is mostly experimental. Perhaps if you > explain your use case a little better we can advise more. > > - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] stop GTKAgg backend
Is there any way I can stop the mainloop of the gtkagg backend. i know there is a threads_leave thing but I neec the Tk object from matplotlib. The problem is that my script doesnt continue after the window has been closed thanks in advance Wolfgang - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] script stuck after show()
The script I am writing gets sometimes stuck after show(). Of course show() halts the script but when I close the window I want it to continue. Is there a sure way to kill off the pylab thread and continue like with a key press event on ESC and then calling a stop routine of the thread. Thanks in advance Wolfgang - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib and interactive use
That server sounds like a good idea. At the moment I have a different
problem:
If I close the window sometimes the script does not continue. Is there
any function that I can call which closes pylab and continues with the
script?
Also, how can I halt the script after the first issue of show().
thanks in advance
Wolfgang
Bill Baxter wrote:
> Did you try
>raw_input("hit enter")
> ?
>
>
> On 8/21/07, Wolfgang Kerzendorf <[EMAIL PROTECTED]> wrote:
>
>> Hello,
>>
>> I am currently writing a data reduction program. I want to use pylab in
>> a script and use interactive input of pylab. The problem is that in
>> ipython -pylab the script just keeps going without waiting for input (I
>> have just tested it by plotting something but did not do
>> cid=connect). In ipython I also have the trouble that the first time
>> I call show the shell waits until the window is closed.
>>
>> Well to simplify my question: How do I decide if pylab just shows the
>> plot or if it waits for input in a script?
>>
>> thanks
>> Wolfgang
>>
>>
>> -
>> This SF.net email is sponsored by: Splunk Inc.
>> Still grepping through log files to find problems? Stop.
>> Now Search log events and configuration files using AJAX and a browser.
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>>
>>
>
>
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[Matplotlib-users] matplotlib and interactive use
Hello, I am currently writing a data reduction program. I want to use pylab in a script and use interactive input of pylab. The problem is that in ipython -pylab the script just keeps going without waiting for input (I have just tested it by plotting something but did not do cid=connect). In ipython I also have the trouble that the first time I call show the shell waits until the window is closed. Well to simplify my question: How do I decide if pylab just shows the plot or if it waits for input in a script? thanks Wolfgang - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] latex output problem
Hello John,
I had also to remove the quotationmarks from the png/dvi Filename
command = 'dvipng -bg Transparent -D %s -T tight -o %s %s'%\
(dpi, pngfile, dvifile)
Now it works fine! Thanks for the quick reply.
Wolfgang
John Hunter schrieb:
>>>>>> "Wolfgang" == Wolfgang <[EMAIL PROTECTED]> writes:
>
> Wolfgang> Hi all, I have absolutely no idea what the problem
> Wolfgang> is. I'm running the actual enthought python version (on
> Wolfgang> WinXP) which includes matplotlib version 0.87.3.
>
> Wolfgang> The conversion of the dvi file to png does not work:
> Wolfgang> dvipng -bg Transparent -D "200" -T tight -o
> Wolfgang>
> "C:\temp\temp\.matplotlib\tex.cache\6ded4018a133b00dd5abd9e27ca15efa.png"
> Wolfgang>
> "C:\temp\temp\.matplotlib\tex.cache\a7b7bb1f22dc4f78602fb90e430bed74.dvi"
>
> Wolfgang> ... RuntimeError: dvipng was not able to process the
> Wolfgang> flowing file:
> Wolfgang>
> C:\temp\temp\.matplotlib\tex.cache\a7b7bb1f22dc4f78602fb90e430bed74.dvi
> Wolfgang> Here is the full report generated by dvipng:
>
> Wolfgang> This is dvipng 1.6 Copyright 2002-2005 Jan-Ake Larsson
> Wolfgang> dvipng: Fatal error, bad -D parameter
>
> I don't understand why the 200 is being quoted in the -D flag, etc
>
> -D "200"
>
> The relavent bit of code in matplotlib.texmanager reads
>
> command = self.get_shell_cmd('cd "%s"' % self.texcache,
> 'dvipng -bg Transparent -D %s -T tight -o \
> "%s" "%s" > "%s"'%(dpi, os.path.split(pngfile)[-1],
> os.path.split(dvifile)[-1], outfile))
>
> WOlfgang, try playing around with this code in
> site-packages/matplotlib/texmanager.py (in the make_png function).
> Does this help
>
> command = self.get_shell_cmd('cd "%s"' % self.texcache,
> 'dvipng -bg Transparent -D %d -T tight -o \
> "%s" "%s" > "%s"'%(int(dpi),
> os.path.split(pngfile)[-1],
> os.path.split(dvifile)[-1], outfile))
>
> 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=lnk&kid=120709&bid=263057&dat=121642
-
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=lnk&kid=120709&bid=263057&dat=121642
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[Matplotlib-users] latex output problem
Hi all, I have absolutely no idea what the problem is. I'm running the actual enthought python version (on WinXP) which includes matplotlib version 0.87.3. The conversion of the dvi file to png does not work: dvipng -bg Transparent -D "200" -T tight -o "C:\temp\temp\.matplotlib\tex.cache\6ded4018a133b00dd5abd9e27ca15efa.png" "C:\temp\temp\.matplotlib\tex.cache\a7b7bb1f22dc4f78602fb90e430bed74.dvi" ... RuntimeError: dvipng was not able to process the flowing file: C:\temp\temp\.matplotlib\tex.cache\a7b7bb1f22dc4f78602fb90e430bed74.dvi Here is the full report generated by dvipng: This is dvipng 1.6 Copyright 2002-2005 Jan-Ake Larsson dvipng: Fatal error, bad -D parameter The path to the dvi file is correct. The strange thing is, that this commands works when I paste it into the windows command line! I hope someone can help me. Regards Wolfgang - 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=lnk&kid=120709&bid=263057&dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] latex labels on plots
Hi,
frac works for me:
yaxislabel=r'\sffamily water content $\left(
\frac{\textsf{kg}}{\textsf{m}^{\textsf{\small 2}}}\right) $'
ylabel(yaxislabel)
And you can also set
rc('text', usetex=False)
in your file to enable or disable tex
in my case I did the following:
tex_out=True # False
if tex_out:
xaxislabel=r'time ($\sqrt{\textsf{s}}$)'
yaxislabel=r'\sffamily water content $\left(
\frac{\textsf{kg}}{\textsf{m}^{\textsf{\small 2}}}\right) $'
rc('text', usetex=True)
else:
xaxislabel='time (s**0.5)'
yaxislabel='water content (kg/m2)'
rc('text', usetex=False)
It's perhaps not the mose elegant way to do, but I'm quite new to
python/pylab/matplotlib
Wolfgang
John Pye schrieb:
> Hi all
>
> I came across this page: http://www.scipy.org/Cookbook/Matplotlib/UsingTex
> which mentions using LaTeX to generate labels on plots in Matplotlib.
>
> What I only discovered recently is that you don't need this 'usetext=1'
> thing in order to create captions on plots that include subscripts, etc.
> According to section 2.6.4 of the user's guide, you can just surround
> your text with $...$ to have it formatted as if it were latex. This is
> especially important if you're exporting SVG graphics (eg if you want to
> add more captioning/labelling using inkscape): the 'usetex' approach
> fails in that case.
>
> I wonder if someone with write access to the scipy wiki could maybe
> update the above page with some comments about the 'mathtext' support in
> Matplotlib? It might also be worth noting that the mathtext
> functionality doesn't support the \frac operator.
>
> Cheers
> JP
>
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Re: [Matplotlib-users] tex-text problem
height=480.0
RendererAgg.__init__ _RendererAgg done
RendererAgg.__init__ done
RendererAgg._get_agg_font
findfont failed Lucida Grande
findfont found Verdana, normal, normal 500, normal, 12.0
findfont returning c:\windows\fonts\verdana.ttf
cd C:\Documents and Settings\s0167070\.matplotlib\tex.cache & dvipng -bg
Transparent -D 80.0 -T tight -o fbf582591f6e1f6319e619b944c658dc.png
3bb1bc57100b0c65915bdda3a1f60dae.dvi
Traceback (most recent call last):
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_gtk.py",
line 283, in expose_event
self._render_figure(self._pixmap, w, h)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_gtkagg.py",
line 72, in _render_figure
FigureCanvasAgg.draw(self)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_agg.py",
line 389, in draw
self.figure.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\figure.py",
line 531, in draw
for a in self.axes: a.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\axes.py",
line 1034, in draw
a.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\axis.py",
line 561, in draw
tick.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\axis.py",
line 161, in draw
if self.label1On: self.label1.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\text.py",
line 1167, in draw
Text.draw(self, renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\text.py",
line 339, in draw
bbox, info = self._get_layout(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\text.py",
line 186, in _get_layout
w,h = renderer.get_text_width_height(
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_agg.py",
line 239, in get_text_width_height
Z = texmanager.get_rgba(s, size, self.dpi.get(), rgb)
File
"D:\Programme\Python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\texmanager.py",
line 409, in get_rgba
pngfile = self.make_png(tex, fontsize, dpi, force=False)
File
"D:\Programme\Python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\texmanager.py",
line 245, in make_png
if exit_status: raise RuntimeError('dvipng was not able to \
RuntimeError: dvipng was not able to process the flowing file:
C:\Documents and
Settings\s0167070\.matplotlib\tex.cache\3bb1bc57100b0c65915bdda3a1f60dae.dvi
Here is the full report generated by dvipng:
3bb1bc57100b0c65915bdda3a1f60dae.dvi: No such file or directory
This is dvipng 1.6 Copyright 2002-2005 Jan-Ake Larsson
>Exit code: 0Time: 4.344
Darren Dale schrieb:
> I'm attaching two files. They should overwrite the existing texmanager file
> in
> site-packages/matplotlib and the backend_ps file in
> site-packages/matplotlib/backends. I would appreciate it if some windows
> users trying to get usetex working with mpl-0.87.3 would test these. I'm
> really surprised at all this trouble, I guess I've become very far removed
> from the windows experience. I dug a windows harddisk out of the back of my
> closet and was able to get usetex working with a standard windows XP setup,
> so there should be no need to change your $HOME or anything like that.
>
>
> Thanks,
> Darren
>
>
> On Monday 12 June 2006 10:34, Wolfgang wrote:
>> Hello Darren,
>>
>> the & is also in my solution! and I always had to change "%s" to %s
>> and I also added a 'c:' before the cd because " cd c:\temp\ " is not
>> working when the command is starten from d:
>>
>> so finally I have:
>> c: & cd %s & latex -interaction=nonstopmode %s ...
>>
>> But I thinks this is not enough to get dvipng working, so I've changed
>> the $HOME to a path without spaces.
>>
>> Wolfgang
>>
>> If you wan't I can mail you the files which I've changed.
>>
>> Darren Dale schrieb:
>>> Part of the problem is that DOS doesnt allow the semicolon to delimit
>>> multiple commands. I made a little bit of progress by changing every 'cd
>>> "%s"; ...' to 'cd &
Re: [Matplotlib-users] tex-text problem
Hello Darren, the & is also in my solution! and I always had to change "%s" to %s and I also added a 'c:' before the cd because " cd c:\temp\ " is not working when the command is starten from d: so finally I have: c: & cd %s & latex -interaction=nonstopmode %s ... But I thinks this is not enough to get dvipng working, so I've changed the $HOME to a path without spaces. Wolfgang If you wan't I can mail you the files which I've changed. Darren Dale schrieb: > Part of the problem is that DOS doesnt allow the semicolon to delimit > multiple > commands. I made a little bit of progress by changing every 'cd "%s"; ...' > to 'cd "%s" & ...'. At that point, dvipng starts complaining about the > dvifile not existing. The frustrating part is that I can copy that exact > command into a dos prompt and dvipng processes the dvi file just fine. I'm > about ready to plead insanity. > > > > On Monday 12 June 2006 08:55, Wolfgang wrote: >> I have Miktex running. But finally dvipng had problems with the path >> which included spaces. >> >> Wolfgang >> >> Ryan Krauss schrieb: >>> Which LaTeX distribution are you using on windows? TexLive handles >>> paths much more poorly than MikTeX. >>> >>> On 6/12/06, Wolfgang <[EMAIL PROTECTED]> wrote: >>>> Finally I changed in matplotlib/__init__.py the evaluation of $HOME to a >>>> path without spaces because all files are transfered to >>>> $HOME.matplotlib/tex.cache/ instead of $TEMP >>>> >>>> I also had to change in texmanager.py some of the "%s" to %s >>>> >>>> I think someone with more experience in programming should check the >>>> path handling on windows (regarding to spaces in the path) >>>> >>>> I would also suggest that temporary files go into a path which is based >>>> on $TMP. >>>> >>>> Wolfgang >>>> >>>> >>>> >>>> ___ >>>> Matplotlib-users mailing list >>>> Matplotlib-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >> ___ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] legend.numpoints: 1 ?
Hi, I want to display some measurement data as simple dots, and also a modeled curve (solid line, no symbols). When I set legend.numpoints to one I get one dot displayed in my legend, but no solid line any more. Is it somehow possible to configure the legend behavior for each line separately? Thanks Wolfgang import matplotlib from pylab import * t=[0,1,2] s=[0.1,1.1,1.9] plot(t, t,label='curve') plot(s, t, markersize=7, marker='o', markeredgecolor='b',markerfacecolor='w',alpha=0,label='dots') ylim(-0.1,2.1) legend(loc=2) show() ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] tex-text problem
I have Miktex running. But finally dvipng had problems with the path which included spaces. Wolfgang Ryan Krauss schrieb: > Which LaTeX distribution are you using on windows? TexLive handles > paths much more poorly than MikTeX. > > On 6/12/06, Wolfgang <[EMAIL PROTECTED]> wrote: >> Finally I changed in matplotlib/__init__.py the evaluation of $HOME to a >> path without spaces because all files are transfered to >> $HOME.matplotlib/tex.cache/ instead of $TEMP >> >> I also had to change in texmanager.py some of the "%s" to %s >> >> I think someone with more experience in programming should check the >> path handling on windows (regarding to spaces in the path) >> >> I would also suggest that temporary files go into a path which is based >> on $TMP. >> >> Wolfgang >> >> >> >> ___ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >> ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] tex-text problem
Finally I changed in matplotlib/__init__.py the evaluation of $HOME to a path without spaces because all files are transfered to $HOME.matplotlib/tex.cache/ instead of $TEMP I also had to change in texmanager.py some of the "%s" to %s I think someone with more experience in programming should check the path handling on windows (regarding to spaces in the path) I would also suggest that temporary files go into a path which is based on $TMP. Wolfgang ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] tex-text problem
Hi Darren,
I will try to change my temp path later this day. But I also think, that
one problem comes from the fact that I have installed Python not on my
C: drive.
Wolfgang
Darren Dale schrieb:
> I'm sorry Wolfgang, but I don't have access to a windows computer at home,
> and
> my next two weeks at work are literally booked from dawn to dusk. I don't
> know when I'll get a chance to look into this again. Hopefully someone else
> on the list can offer some suggestions.
>
> Darren
>
>
> On Sunday 11 June 2006 7:22 pm, Wolfgang wrote:
>> Hi,
>>
>> with some manual adjustments in texmanager.py I get the first tex file
>> processed to an dvi and both files (tex + dvi) are copied into this folder:
>> C:\Documents and Settings\s0167070\.matplotlib\tex.cache
>>
>> but now dvipng refuses to do its job:
>>
>> if exit_status: raise RuntimeError('dvipng was not able to \
>> RuntimeError: dvipng was not able to process the flowing file:
>> C:\Documents and
>> Settings\s0167070\.matplotlib\tex.cache\3bb1bc57100b0c65915bdda3a1f60dae.dv
>> i Here is the full report generated by dvipng:
>>
>> Settings\s0167070\.matplotlib\tex.cache\3bb1bc57100b0c65915bdda3a1f60dae.dv
>> i": No such file or directory
>>
>> It seems that the spaces in the temp path produce the error. Is there a
>> way to change the temp dir (beneath in system settings of XP)?
>>
>> Thanks
>> Wolfgang
>>
>>
>>
>> ___
>> Matplotlib-users mailing list
>> Matplotlib-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] tex-text problem
Hi,
with some manual adjustments in texmanager.py I get the first tex file
processed to an dvi and both files (tex + dvi) are copied into this folder:
C:\Documents and Settings\s0167070\.matplotlib\tex.cache
but now dvipng refuses to do its job:
if exit_status: raise RuntimeError('dvipng was not able to \
RuntimeError: dvipng was not able to process the flowing file:
C:\Documents and
Settings\s0167070\.matplotlib\tex.cache\3bb1bc57100b0c65915bdda3a1f60dae.dvi
Here is the full report generated by dvipng:
Settings\s0167070\.matplotlib\tex.cache\3bb1bc57100b0c65915bdda3a1f60dae.dvi":
No such file or directory
It seems that the spaces in the temp path produce the error. Is there a
way to change the temp dir (beneath in system settings of XP)?
Thanks
Wolfgang
___
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Matplotlib-users@lists.sourceforge.net
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Re: [Matplotlib-users] legend without frame?
and the answer is: legend().draw_frame(0) problem solved Wolfgang Wolfgang schrieb: > Hi, > > how can I switch off the frame of the legend? > > Thanks > Wolfgang ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] legend without frame?
Hi, how can I switch off the frame of the legend? Thanks Wolfgang ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] tex-text problem
7.3-py2.4-win32
.egg\matplotlib\figure.py", line 660, in savefig
self.canvas.print_figure(*args, **kwargs)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\backends\backend_tkagg.py", line 184, in print_figure
agg.print_figure(filename, dpi, facecolor, edgecolor, orientation,
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\backends\backend_agg.py", line 452, in print_figure
self.draw()
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\backends\backend_agg.py", line 389, in draw
self.figure.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\figure.py", line 531, in draw
for a in self.axes: a.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\axes.py", line 1034, in draw
a.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\axis.py", line 561, in draw
tick.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\axis.py", line 161, in draw
if self.label1On: self.label1.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\text.py", line 1167, in draw
Text.draw(self, renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\text.py", line 339, in draw
bbox, info = self._get_layout(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\text.py", line 186, in _get_layout
w,h = renderer.get_text_width_height(
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\backends\backend_agg.py", line 239, in get_text_width_height
Z = texmanager.get_rgba(s, size, self.dpi.get(), rgb)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\texmanager.py", line 401, in get_rgba
pngfile = self.make_png(tex, fontsize, dpi, force=False)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\texmanager.py", line 227, in make_png
dvifile = self.make_dvi(tex, fontsize)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32
.egg\matplotlib\texmanager.py", line 197, in make_dvi
if exit_status: raise RuntimeError('LaTeX was not able to process \
RuntimeError: LaTeX was not able to process the flowing string:
0.0
Here is the full report generated by LaTeX:
The system cannot find the path specified.
Hope that someone has a clue about whats going wrong here!
Thanks
Wolfgang
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Re: [Matplotlib-users] ANN: basemap 0.9
Hi, problem is solved. It seems that the file got corrupted during the first download and all further tries to download it again referred to the cached file. The solution simply was to empty the file cache. Sorry for causing trouble Wolfgang Jeff Whitaker schrieb: > Wolfgang wrote: >> I tried to download basemap 0.9 from sourceforge but during unzipping I >> get an crc error. Can anybody else test the file from sf? >> >> Thanks >> Wolfgang >> >> > > Wolfgang: Works fine for me - I suggest trying another SF mirror. Do > you remember which one you downloaded the corrupt file from? > > -Jeff > ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] tex-text problem
Hi,
I'm quite new to python and matplotlib, but at least simple graphs work
already. But now I tried to use tex for processing labels.
tex, latex, dvipng and ghostscript are in my path. A manual tex-run on
the tex file produces a dvi file.
Any help is appreciated
Wolfgang
PS: I'm runnin on WinXP prof
##
My script:
from matplotlib import rc
from matplotlib.numerix import arange, cos, pi
from pylab import figure, axes, plot, xlabel, ylabel, title, grid,
savefig, show
rc('text', usetex=True)
figure(1)
ax = axes([0.1, 0.1, 0.8, 0.7])
t = arange(0.0, 1.0+0.01, 0.01)
s = cos(2*2*pi*t)+2
plot(t, s)
xlabel(r'\textbf{time (s)}')
ylabel(r'\textit{voltage (mV)}',fontsize=16)
title(r"\TeX\ is Number
$\displaystyle\sum_{n=1}^\infty\frac{-e^{i\pi}}{2^n}$!", fontsize=16,
color='r')
grid(True)
savefig('tex_demo')
show()
##
And here the error:
>pythonw -u "tex.py"
Traceback (most recent call last):
File "tex.py", line 16, in ?
savefig('tex_demo')
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\pylab.py",
line 811, in savefig
return fig.savefig(*args, **kwargs)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\figure.py",
line 660, in savefig
self.canvas.print_figure(*args, **kwargs)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_tkagg.py",
line 184, in print_figure
agg.print_figure(filename, dpi, facecolor, edgecolor, orientation,
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_agg.py",
line 452, in print_figure
self.draw()
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_agg.py",
line 389, in draw
self.figure.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\figure.py",
line 531, in draw
for a in self.axes: a.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\axes.py",
line 1034, in draw
a.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\axis.py",
line 561, in draw
tick.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\axis.py",
line 161, in draw
if self.label1On: self.label1.draw(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\text.py",
line 1167, in draw
Text.draw(self, renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\text.py",
line 339, in draw
bbox, info = self._get_layout(renderer)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\text.py",
line 186, in _get_layout
w,h = renderer.get_text_width_height(
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\backends\backend_agg.py",
line 239, in get_text_width_height
Z = texmanager.get_rgba(s, size, self.dpi.get(), rgb)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\texmanager.py",
line 401, in get_rgba
pngfile = self.make_png(tex, fontsize, dpi, force=False)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\texmanager.py",
line 227, in make_png
dvifile = self.make_dvi(tex, fontsize)
File
"d:\programme\python2.4.3\lib\site-packages\matplotlib-0.87.3-py2.4-win32.egg\matplotlib\texmanager.py",
line 197, in make_dvi
if exit_status: raise RuntimeError('LaTeX was not able to process \
RuntimeError: LaTeX was not able to process the flowing string:
0.0
Here is the full report generated by LaTeX:
The system cannot find the path specified.
##
But I can run the created tex-file manually:
latex -interaction=nonstopmode "3bb1bc57100b0c65915bdda3a1f60dae.tex"
This is e-TeX, Version 3.141592-2.2 (MiKTeX 2.4) (preloaded format=latex
2006.6.11) 11 JUN 2006 13:52
entering extended mode
**3bb1bc57100b0c65915bdda3a1f60dae.tex
(3bb1bc57100b0c65915bdda3a1f60dae.tex
LaTeX2e <2005/12/01>
Babel and hyphenation patterns for english, dumylang,
nohyphenation, ge
rman, ngerman, french, loaded.
(C:\texmf\tex\late
Re: [Matplotlib-users] ANN: basemap 0.9
I tried to download basemap 0.9 from sourceforge but during unzipping I get an crc error. Can anybody else test the file from sf? Thanks Wolfgang Jeff Whitaker schrieb: > The main purpose of this release is to take advantage of the new aspect > ratio handling in matplotlib 0.87.3. > > Some new features have been added (new polar-centric convenience > projections, sinusoidal projection, ability to plot land-sea masks, > pcolormesh method), and numerous bugs were squashed. > > Here is the full list of changes since 0.8.2: > >* updated for new matplotlib aspect ratio handling. >Now maps will always have the correct aspect ratio. >* if resolution keyword is set to None when Basemap >instance is created, no boundary data sets are needed >(methods to draw boundaries, like drawcoastlines, will >raise an exception). >* update to proj4 module - renamed pyproj to avoid >conflicts with proj4 module from CDAT. >* createfigure method deprecated, since maps >will now automatically have the correct aspect ratio. >* Added new projections Xpstere, Xplaea, Xpaeqd (where X >can be n or s). These are special-case, polar-centric >versions of the stereographic, lambert azimuthal equal area >and azimuthal equidistant projections that don't require >you specify the lat/lon values of the lower-left and upper-right >corners. >* fixed bugs in plot, scatter and mapboundary methods for >miller, cylindrical and mercator projections. >* 'crude' and 'low' resolution boundary datasets now installed >by default. basemap_data package now only needed for to get >'intermediate' and 'high' resolution datasets. >* moved all packages under single lib/ directory so >setuptools' "develop" command works properly. >* Added sinusoidal projection. >* bilinear interpolation routines can return masked arrays with >values outside range of data coordinates masked. >* New examples (warpimage.py - warping an image to >different map projections, polarmaps.py - simplified polar >projections, garp.py - 'World According to Garp' maps). >* pcolormesh method added. >* drawlsmask method added for masking oceans and/or land areas. >5 minute land-sea mask dataset added. > > > -Jeff > ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
