Re: [Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

2015-03-26 Thread Thomas Caswell
Yikes, that formatting is almost worse! On Thu, Mar 26, 2015 at 11:53 AM rogerjames99 ro...@beardandsandals.co.uk wrote: Hi Thomas, I posted via nabble. It looks like something stripped the code. Here is the bit where the axes are set up def setup_axes(self, fig, rect): With custom locator

Re: [Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

2015-03-26 Thread rogerjames99
Hi Thomas,I posted via nabble. It looks like something stripped the code.Here is the bit where the axes are set updef setup_axes(self, fig, rect): With custom locator and formatter.Note that the extreme values are swapped.transform =

Re: [Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

2015-03-26 Thread Thomas Caswell
And if I look at this on nabble the code looks fine, it just was not redndering in inbox. Sorry, the issues is on my end. On Thu, Mar 26, 2015 at 11:54 AM Thomas Caswell tcasw...@gmail.com wrote: Yikes, that formatting is almost worse! On Thu, Mar 26, 2015 at 11:53 AM rogerjames99

Re: [Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

2015-03-26 Thread rogerjames99
Ok the last one got garbled. My apologies to the list but here is another go. Hi Thomas, I posted via nabble. It looks like something stripped the code. Here is the bit where the axes are set up def setup_axes(self, fig, rect): With custom locator and formatter.

Re: [Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

2015-03-26 Thread Thomas Caswell
Can you include a minimal example of the code you are using (it looks like you did include code, but it did not come through)? It is very hard to guess at what is wrong without it. Tom On Wed, Mar 25, 2015 at 2:29 PM rogerjames99 ro...@beardandsandals.co.uk wrote: Hi, I am trying to draw a

[Matplotlib-users] Help with updating the limits of an axis to reflect the range of new data

2015-03-25 Thread rogerjames99
Hi, I am trying to draw a polar plot of a sonar scan. The idea being to present it like a radar display. I have used axisartist to do the ploar plot. This is working fine but I would like to reset the limits of the radius axis with each new scan. I have tried a number of ways of doing this

[Matplotlib-users] Help understanding matplotlibrc vs matplotlib api

2014-09-11 Thread Jonno
I'm looking for some help understanding how I can add new lines to my matplotlibrc but I'm struggling to correlate the default matplotlibrc to the api. For example if I want to have axis ticks only show up on the bottom and left axes how would I add that to mapltlotlibrc? I can do this in my code

Re: [Matplotlib-users] help, installing matplotlib on mac 10.8

2013-04-22 Thread Charles Agoti
many thanks Paul, this did work: I uninstalled all python in my computer: sudo rm -rf python* sudo rm -rf /Library/Frameworks/Python.framework/Versions/2.7 sudo rm -rf /Applications/Python 2.7 and installed python and matplotlib afresh. Numby had been installed Python 2.7.4

Re: [Matplotlib-users] help, installing matplotlib on mac 10.8

2013-04-21 Thread Paul Ivanov
Hi Charles, I'm sending my reply to the matplotlib-users list - please follow up there, so that others benefit from your experience, or folks who have run into the same issue can also pitch in with their help. Here's where to go to sign up:

Re: [Matplotlib-users] help plotting vector field in basemap

2013-04-08 Thread Eric Firing
On 2013/04/08 4:13 AM, epi wrote: Hi All, i'm new to basemap, truing to learn how to plot vector from a netcdf file the variables in my file are : - time - Significant_height_of_combined_wind_waves_and_swell_surface - u-component_of_wind_surface - v-component_of_wind_surface this is my

[Matplotlib-users] help: matplotlib.sankey: linking flows from multiple prior sub-diagrams and crossing flows

2013-02-12 Thread Aleix Altimiras
Hi List, I wonder whether anybody has tried to draw the following idea with a sankey diagram (but if you are aware of another way to draw the following, I am open to suggestions): I have several systems which are all linked so that part of the outputs of each of the systems becomes part of the

[Matplotlib-users] help with colorbar

2012-09-06 Thread Erika Montani
Hello everyone, I have a problem with a colorbar: I have a stackedbar and a colorbar that I want to create or delete by clicking on a button.. but when the colorbar is deleted I want to change the dimension of the axes, resizing it even in the place occupied by the colorbar.. I need to create

Re: [Matplotlib-users] help me Velocity depth plot in matplotlib

2012-08-11 Thread Mark Lawrence
On 10/08/2012 21:27, Damon McDougall wrote: [snipped] Actually, I discovered today that this is possible. You can use step() to achieve what you want: http://matplotlib.sourceforge.net/examples/pylab_examples/step_demo.html Awesome, my question answered before I'd even asked it :) --

Re: [Matplotlib-users] help me Velocity depth plot in matplotlib

2012-08-10 Thread Damon McDougall
On Fri, Aug 10, 2012 at 02:09:39PM +0530, satish maurya wrote: Dear All, I want to stairs plot (similar in matlab) matplotlib First i want for i data-set then multiple data-set super impose on that. I attach the figure it's showing velocity-depth stairs plots for superimpose (like hold on

Re: [Matplotlib-users] help me Velocity depth plot in matplotlib

2012-08-10 Thread Damon McDougall
On Fri, Aug 10, 2012 at 12:47:22PM +0100, Damon McDougall wrote: On Fri, Aug 10, 2012 at 02:09:39PM +0530, satish maurya wrote: Dear All, I want to stairs plot (similar in matlab) matplotlib First i want for i data-set then multiple data-set super impose on that. I attach the figure

Re: [Matplotlib-users] Help needed with FuncAnimation

2012-04-23 Thread Clare Soh
Hi, I managed to figure this out. I need to pass an init function to FuncAnimation. Quoting from the MatPlotLib API documentation: *init_func* is a function used to draw a clear frame. If not given, the results of drawing from the first item in the frames sequence will be used. So just in case

[Matplotlib-users] Help needed with FuncAnimation

2012-04-22 Thread Clare Kwan
Hi, I'm trying to learn how to use FuncAnimation. I made some small modifications to one of the matplotlib examples tried it out, but I encounter a problem. I'm trying to update a line plot every 1 sec I have my x-axis limit set to (0,10) initially. When the plot reaches x=10, I change the

[Matplotlib-users] help with a custom plot : chess board like table with colored cells

2012-04-17 Thread Abhishek Pratap
Hi Guys I am starting to render plots with matplotlib as I learn both python and this interesting plotting library. I need help with a custom plot for a problem I am working on. May be there is an inbuilt function already. Problem: I am trying to draw a table(rectangle) as a plot with 96

Re: [Matplotlib-users] help with a custom plot : chess board like table with colored cells

2012-04-17 Thread Sameer Grover
On Tuesday 17 April 2012 12:36 PM, Abhishek Pratap wrote: Hi Guys I am starting to render plots with matplotlib as I learn both python and this interesting plotting library. I need help with a custom plot for a problem I am working on. May be there is an inbuilt function already. Problem:

Re: [Matplotlib-users] help with a custom plot : chess board like table with colored cells

2012-04-17 Thread Benjamin Root
On Tue, Apr 17, 2012 at 3:16 AM, Sameer Grover sameer.grove...@gmail.comwrote: On Tuesday 17 April 2012 12:36 PM, Abhishek Pratap wrote: Hi Guys I am starting to render plots with matplotlib as I learn both python and this interesting plotting library. I need help with a custom plot for a

[Matplotlib-users] help with custom formatter rules

2011-11-28 Thread C M
As related to another question(s) I've posted, can someone help with this custom formatter? This is for use in a FunctionFormatter to be used on the y axis to format the ticks (in particular, to remove them when not wanted). Example: def CustomFormatter(self,y,i): if y 0:

Re: [Matplotlib-users] Help with some data manipulation for a plot

2011-09-22 Thread Armando Serrano Lombillo
On Wed, Sep 21, 2011 at 9:28 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Sep 21, 2011 at 2:00 PM, Armando Serrano Lombillo arser...@gmail.com wrote: Hello I have a dat set like this one a=[[x1, y1, cat1], [x2, y2, cat1], ..., [x8, y8, cat1], [x9, y9, cat2], ..., [x34, y34, cat2],

Re: [Matplotlib-users] Help with some data manipulation for a plot

2011-09-21 Thread Benjamin Root
On Wed, Sep 21, 2011 at 2:00 PM, Armando Serrano Lombillo arser...@gmail.com wrote: Hello I have a dat set like this one a=[[x1, y1, cat1], [x2, y2, cat1], ..., [x8, y8, cat1], [x9, y9, cat2], ..., [x34, y34, cat2], [x35, y35, cat3],...] and I don't know beforehand how many diffferent

[Matplotlib-users] help with code for DurationFormatter

2011-07-20 Thread C M
A runnable code sample is attached. I'm trying to plot durations in time (sec to hours) on the y axis such that if you zoom, it changes the units and axis label appropriately. When run, it looks right. But, when I zoom on the first point, it is shown on the y axis at '0.20' minutes. I would

Re: [Matplotlib-users] Help in solving a segfault problem?

2011-03-19 Thread Nicolas SCHEFFER
Hi all, So I tried what was advised to me. python -c 'import pylab; pylab.plot([4]);' terminate called after throwing an instance of 'std::exception' terminate called recursively Abort which happens here: 14 agg::trans_affine 15 py_to_agg_transformation_matrix(PyObject* obj, bool errors

Re: [Matplotlib-users] Help in solving a segfault problem?

2011-03-13 Thread Nicolas SCHEFFER
Hi, I didn't get much reply on this issue, so I'm just trying to resurrect the question. If there's no easy answer, could someone help me by giving me a pointer, a method to resolve the problem, or any other quick advice...? Thanks much! On Thu, Mar 10, 2011 at 12:29 AM, Nicolas SCHEFFER

Re: [Matplotlib-users] Help in solving a segfault problem?

2011-03-13 Thread Jouni K . Seppänen
Nicolas SCHEFFER scheffer.nico...@gmail.com writes: I didn't get much reply on this issue, so I'm just trying to resurrect the question. Probably not many devs using Solaris, so no-one has been able to reproduce this. #12 0xfd7ff4a22fd8 in py_to_agg_transformation_matrix (obj=0x774380,

Re: [Matplotlib-users] Help in solving a segfault problem?

2011-03-13 Thread Nicolas SCHEFFER
Thanks much for the reply! I'll try your advice as soon as I can. BTW, I don't think this is a Solaris-related problem. If you look at the pointers in my original post, the same error can happen on other arch (I confess it can be for other reasons though). -n On Sun, Mar 13, 2011 at 1:03 PM,

[Matplotlib-users] Help in solving a segfault problem?

2011-03-10 Thread Nicolas SCHEFFER
Hi all, I am stuck on matplotlib generating a segfault when invoking 'plot'. I've ben trying to solve this problem for a while now but no luck. I've seen many duplicates of this problem on the web, some with solutions, some without. The solution must be something more generic that I'm missing.

[Matplotlib-users] Help with imshow() extent.

2011-02-03 Thread bhargav vaidya
Hello I am using matplotlib 1.0.0 version. and would like to use the imshow() to display my 2D image [512 X 1024] so when I use the imshow() command as imshow(array,origin='lower',interpolation='bilinear') xlables - [0,100,200,400,500] ylabels - [0,200,400,600,800,1000] which is correct as

[Matplotlib-users] help! figures closing automatically

2011-01-18 Thread Jeff Peery
Hello, I just upgraded my computer to windows 7. I have everything (python, wxpython, matplotlib, numpy) running now, but there is an annoying problem that when I double click on one of my scripts (simple pylab script) it runs creates a figure and plot then immediately closes... so I don't get

Re: [Matplotlib-users] help! figures closing automatically

2011-01-18 Thread Benjamin Root
On Tue, Jan 18, 2011 at 10:56 AM, Jeff Peery jeffpe...@seametrics.comwrote: Hello, I just upgraded my computer to windows 7. I have everything (python, wxpython, matplotlib, numpy) running now, but there is an annoying problem that when I double click on one of my scripts (simple pylab

Re: [Matplotlib-users] help requested

2010-12-17 Thread Friedrich Romstedt
Sorry for the long delay, simplest case would be if you can install networkx for py2.6 and the matplotlib you already have on that py2.6 too. Other, painful option is to compile matplotlib on WIndows yourself (but I cannot help with this). I don't know networkx but I strongly believe that py2.6

Re: [Matplotlib-users] help requested

2010-12-17 Thread Christoph Gohlke
Unofficial matplotlib binaries for Python 2.7 for Windows are available at http://www.lfd.uci.edu/~gohlke/pythonlibs/#matplotlib. Christoph On 12/11/2010 11:55 PM, Abdul Rasheed wrote: hi all i am new to networkx and Matplotlib. I downloaded networkx1.3 under python 2.7.1 for windows xp.

[Matplotlib-users] help requested

2010-12-16 Thread Abdul Rasheed
hi all i am new to networkx and Matplotlib. I downloaded networkx1.3 under python 2.7.1 for windows xp. when i tried to install matplotlib, it requires python 2.6 only. What shall i do in this situation? kindly suggest me to have successful installation of matplotlib. Awaiting for your

[Matplotlib-users] Help with strange add_subplot behavior after change_geometry()...

2010-12-15 Thread Åke Kullenberg
I am using matplotlib in wxpython to dynamically add subplots to a figure and I am using the geometry_change() method to manage how they are shown. Basically I want all subplot to share the space evenly in one column. With the simple test code I have pasted in below I have run into some weird

Re: [Matplotlib-users] Help with strange add_subplot behavior after change_geometry()...

2010-12-15 Thread Åke Kullenberg
I figured it out, I think. I read the docs ( http://matplotlib.sourceforge.net/api/figure_api.html#matplotlib.figure.Figure.add_axes) on add_axes and found the part about adding a label to a new axes to force matplotlib to add a new axes. So I changed this line from: subplot =

[Matplotlib-users] help creating a netcdf file with an irregular grid projection (stereographic)

2010-10-29 Thread John
Any good tutorials or examples that people could point me to on creating a netcdf file for a grid projected with a stereographic projection? It's not clear to me how you would create the lat / lon dimensions. Thanks, john -- Configuration `` Basemap: 1.0 Matplotlib:

Re: [Matplotlib-users] help creating a netcdf file with an irregular grid projection (stereographic)

2010-10-29 Thread Benjamin Root
On Fri, Oct 29, 2010 at 7:04 PM, John washa...@gmail.com wrote: Any good tutorials or examples that people could point me to on creating a netcdf file for a grid projected with a stereographic projection? It's not clear to me how you would create the lat / lon dimensions. Thanks, john

Re: [Matplotlib-users] help creating a netcdf file with an irregular grid projection (stereographic)

2010-10-29 Thread Jeff Whitaker
On 10/29/10 6:04 PM, John wrote: Any good tutorials or examples that people could point me to on creating a netcdf file for a grid projected with a stereographic projection? It's not clear to me how you would create the lat / lon dimensions. Thanks, john John: The nice thing about

[Matplotlib-users] help on 3d scatter.

2010-10-20 Thread Bala subramanian
Friends, I tried to do a 3d scatter plot. The following is my code. However i dnt know how to set different colors and marker for x, y and z. Someone kindly help in doing the same. I tried to give a sequence of colors as c=['black','red','blue'] but i dnt get what i want. --

Re: [Matplotlib-users] Help in graph

2010-10-19 Thread Friedrich Romstedt
2010/10/19 Waléria Antunes David waleriantu...@gmail.com: Example: In my graph, the x-axis this way: 0.0 - 0.2 -- 0.4 - 0.6 --- 0.8 --- 1.0 --- 1.2 1.4 I need this way: 0 - 0.5 -- 1.0 - 1.5 2 you might use mpl.ticker.MaxNLocator(4).

Re: [Matplotlib-users] Help in graph

2010-10-19 Thread Waléria Antunes David
Hi, This example helped me. I have another question. How do I insert the label as in the example image?: Data from Riess et al (2004) Thanks, Waleria. On Tue, Oct 19, 2010 at 3:50 PM, Paul Hobson pmhob...@gmail.com wrote: Waléria, Hopefully this example helps: # code... import

Re: [Matplotlib-users] Help in graph

2010-10-19 Thread Paul Hobson
Use the legend method of your axes object: http://matplotlib.sourceforge.net/examples/api/legend_demo.html?highlight=codex%20legend On Tue, Oct 19, 2010 at 11:15 AM, Waléria Antunes David waleriantu...@gmail.com wrote: Hi, This example helped me. I have another question. How do I insert the

Re: [Matplotlib-users] Help Installing on Mac OS X

2010-07-08 Thread Russell E. Owen
In article a94a7d96-b99a-44d7-b4af-ecc3aff84...@tufts.edu, Shir Livne shir.li...@tufts.edu wrote: Hi, I downloaded the files from the site, but when i type import matplotlib in python, it responds with ImportError: No module named matplotlib Does anyone mind going through the

[Matplotlib-users] Help Installing on Mac OS X

2010-07-03 Thread Shir Livne
Hi, I downloaded the files from the site, but when i type import matplotlib in python, it responds with ImportError: No module named matplotlib Does anyone mind going through the download steps for me? I probably forgot something simple. Thanks, Shir

Re: [Matplotlib-users] Help with imshow on Mac OS X 10.6 Snow Leopoard

2010-06-08 Thread Benjamin Root
Todd, I am glad that worked for you. I am assuming that you are coming from a Matlab-like experience where every plot command did produced a graphical result when called? If so, I can see how this behavior can be a little confusing. I will admit I was a little confused at first when I started

Re: [Matplotlib-users] Help with imshow on Mac OS X 10.6 Snow Leopoard

2010-06-08 Thread Eric Firing
On 06/08/2010 04:31 AM, Benjamin Root wrote: Todd, I am glad that worked for you. [...] Anyway, you can always call plt.ion() to turn interactive mode on, and plt.ioff() to turn it off, or you can use ipython with the -pylab argument (although I don't know if this is the same as turning

[Matplotlib-users] Help with imshow on Mac OS X 10.6 Snow Leopoard

2010-06-07 Thread Todd V Rovito
Greetings, I just installed Python 2.6 (python.org), Numpy 1.4.1, and Matplotlib 0.99.1.2 all on Mac OS X 10.6 in an attempt to learn about scientific programming in python. Go easy on me since I am a begginer. The Python and Numpy seem to be working correctly. I can get matplotlib to make

Re: [Matplotlib-users] Help with imshow on Mac OS X 10.6 Snow Leopoard

2010-06-07 Thread Benjamin Root
Todd, I think you are missing a plt.show() at the end of your code. matplotlib, by default on most systems, does not show a plot until you tell it to using plt.show() command. See if that works, Ben Root On Mon, Jun 7, 2010 at 7:57 AM, Todd V Rovito rovit...@gmail.com wrote: Greetings,

Re: [Matplotlib-users] Help with imshow on Mac OS X 10.6 Snow Leopoard

2010-06-07 Thread Todd V Rovito
Ben, That worked great, thanks!!! Just a few points. The documentation under the image tutorial section does not specify that a user has to do plt.show(), should I submit a bug report or something? I changed my code and listed it below it works as long as I comment out the plot c section. In

Re: [Matplotlib-users] Help with Colormaps

2010-04-28 Thread Jervis Whitley
On Thu, Apr 29, 2010 at 9:00 AM, Geoff Sims geoffrey.s...@gmail.com wrote: Hi there, I've been spending hours trying to get the colormaps to work, and I am still having no luck. All the examples I have found seem to use imshow() rather than the figure() and plot(). This is a very simple

Re: [Matplotlib-users] Help with Colormaps

2010-04-28 Thread Geoff Sims
Thanks Jervis, I was able to get it to work! Geoff On 29 April 2010 09:09, Jervis Whitley jervi...@gmail.com wrote: On Thu, Apr 29, 2010 at 9:00 AM, Geoff Sims geoffrey.s...@gmail.comwrote: Hi there, I've been spending hours trying to get the colormaps to work, and I am still having

[Matplotlib-users] Help needed on specific plot

2010-02-19 Thread matplotlib
Hi, I have the exterior shape of a nozzle given by S(x). Now what I want to do is first reflect it with respect to the y=0 axis (easily achieved by -S(x) right?) and then map each x node's value of an array (say density) to a color that would fill the vertical space between S(x) and -S(x). In

Re: [Matplotlib-users] Help needed on specific plot

2010-02-19 Thread PHobson
Whoops. Give this one a shot: http://dpaste.com/161847/ -Original Message- From: Paul Hobson Sent: Friday, February 19, 2010 2:54 PM To: matplot...@liste.fastmail.fm; matplotlib-users@lists.sourceforge.net Subject: RE: [Matplotlib-users] Help needed on specific plot Hugo, I

Re: [Matplotlib-users] help with a custom formatter

2010-02-13 Thread Jae-Joon Lee
If you're happy with the default formatter behavior (which seems to match with your #3 requirement), just reuse it. class MyFormatter(ScalarFormatter): def __call__(self, val, pos=None): if val 0: return '' else: return ScalarFormatter.__call__(self, val)

Re: [Matplotlib-users] help with a custom formatter

2010-02-13 Thread C M
On Sat, Feb 13, 2010 at 3:00 PM, Jae-Joon Lee lee.j.j...@gmail.com wrote: If you're happy with the default formatter  behavior (which seems to match with your #3 requirement), just reuse it. class MyFormatter(ScalarFormatter):   def __call__(self, val, pos=None):       if val 0:          

[Matplotlib-users] help with a custom formatter

2010-02-12 Thread C M
I would like a custom formatter that does 3 things: 1) Blanks out all the values less than 0. 2) Chooses appropriate major ticks when zoomed out. 3) Shows an integer when the zoom scale is revealing multiple integers, but shows a decimal number when it is just showing within one integer; i.e. if

Re: [Matplotlib-users] help with view_limits

2010-02-10 Thread Matthias Michler
Hi Che, I think turning off autoscaling is what you need: import matplotlib.pyplot as plt ax = plt.subplot(111, autoscaley_on=False, ylim=(0, 100)) plt.plot([1, 2], [-40, 40]) plt.show() Kind regards, Matthias On Monday 08 February 2010 20:49:50 C M wrote: I'd like to set the ticks on the y

[Matplotlib-users] help with view_limits

2010-02-08 Thread C M
I'd like to set the ticks on the y axis such that they do not display anything lower than 0, even if part of the graph below 0 is visible. I tried to do this with ylocator = AutoLocator() ylocator.view_limits(0, 100) self.subplot.yaxis.set_major_locator(ylocator) but it is not changing anything.

[Matplotlib-users] Help ploting bars

2009-11-24 Thread Bruno Santos
Hello everyone, I am trying to use matplotlib to plot several bar charts inside a for loop the problem is that I get the first one, but once I close it I cannot plot anymore. I still get the window but no image appear and eventually python crashes. Here is my code: [code] def plot(self):

[Matplotlib-users] Help plotting dates

2009-09-08 Thread Armando Serrano Lombillo
Hello, I'm finding it a little difficult to make a plot with dates: I have an array with 2 columns. The first one is seconds since a certain date (let's say 8th September, 8:00am). The second one is the variable I want to plot. The series spans several months so I want to have the major ticks be

Re: [Matplotlib-users] Help plotting dates

2009-09-08 Thread Gökhan Sever
On Tue, Sep 8, 2009 at 7:45 AM, Armando Serrano Lombillo arser...@gmail.com wrote: Hello, I'm finding it a little difficult to make a plot with dates: I have an array with 2 columns. The first one is seconds since a certain date (let's say 8th September, 8:00am). The second one is the

Re: [Matplotlib-users] help needed in plotting curved elements

2009-08-24 Thread Sameer Regmi
Thank you Lee. Thank you Chris and John, the problem is solved. Chris, we did the method 1) as this was easier for us. Sameer On Sun, Aug 23, 2009 at 5:53 PM, John Hunter jdh2...@gmail.com wrote: On Sun, Aug 23, 2009 at 7:45 PM, Chris Barkerchris.bar...@noaa.gov wrote: This is a Bezier

Re: [Matplotlib-users] help needed in plotting curved elements

2009-08-23 Thread Chris Barker
Sameer Regmi wrote: We are working on plotting mesh (in hermes2d: http://hpfem.math.unr.edu/projects/hermes2d-new/) In the hermes2d examples curves are defined as [4, 7, 45] where 4,7 are vertices indices, and 45 is center angle. 1) matplot.path porvides a way to plot curve with three

Re: [Matplotlib-users] help needed in plotting curved elements

2009-08-23 Thread John Hunter
On Sun, Aug 23, 2009 at 7:45 PM, Chris Barkerchris.bar...@noaa.gov wrote: This is a Bezier spline -- it can not exactly form a piece of a circle (though it can get pretty close). You can probably find the math somewhere for how to approximate a circle, but... somewhere like ...

Re: [Matplotlib-users] help needed in plotting curved elements

2009-08-22 Thread Jae-Joon Lee
On Thu, Aug 20, 2009 at 2:01 AM, Sameer Regmiregm...@gmail.com wrote: We tried the method 1 but the result was a garbled mesh Please describe what you did and why the result is wrong. The method 1 with quadratic bezier curve should be most straight-forward and easy thing to do. Calculating the

[Matplotlib-users] help needed in plotting curved elements

2009-08-21 Thread Sameer Regmi
We are working on plotting mesh (in hermes2d: http://hpfem.math.unr.edu/projects/hermes2d-new/) We created a python function to plot mesh but initially without curves. Later we also tried to work on curved elements but we are having some problems. In the hermes2d examples curves are defined as [4,

[Matplotlib-users] Help with plot_directive

2009-07-22 Thread dpo
Hello, I am running Matplotlib 0.98.6svn compiled from source on OSX and Sphinx 0.6.2. I am trying the following example to test plot_directive .. plot:: from numpy import linspace, sin import matplotlib.pylab as plt x = linspace(0.01,25, 1) plt.plot(x, sin(x)/x)

[Matplotlib-users] Help building

2009-06-30 Thread Rick Muller
I've been a long time, happy user of MPL, but I'm having some problems building the latest version (0.98.5.3) on the Mac (python 2.6.2). The bottom line is that when I build, I get the error message: ld: in /Developer/SDKs/MacOSX10.4u.sdk/usr/local/lib/libPng.dylib, file is not o f required

Re: [Matplotlib-users] Help building

2009-06-30 Thread Michael Droettboom
What does pkg-config libpng --modversion --libs --cflags give? The pkg-config error may actually be a red herring, since matplotlib will look in /usr/local even if pkg-config fails, and it obviously found the headers or it wouldn't have gotten to the linking stage. As the author of the

Re: [Matplotlib-users] Help building

2009-06-30 Thread Rick Muller
On Tue, Jun 30, 2009 at 9:14 AM, Michael Droettboom md...@stsci.edu wrote: What does pkg-config libpng --modversion --libs --cflags give? I guess I don't have pkg-config installed. Is this a requirement? I haven't had it installed before? The pkg-config error may actually be a red

Re: [Matplotlib-users] Help building

2009-06-30 Thread Rick Muller
On Tue, Jun 30, 2009 at 9:14 AM, Michael Droettboom md...@stsci.edu wrote: What does pkg-config libpng --modversion --libs --cflags give? The pkg-config error may actually be a red herring, since matplotlib will look in /usr/local even if pkg-config fails, and it obviously found the

Re: [Matplotlib-users] Help building (problems with pkg-config and libpng)

2009-06-30 Thread Rick Muller
I have a working system now. Here's what I did to fix it. 1. Installed libpng from source 2. Installed freetype2 from source 3. Installed pkg-config from source 4. Installed a new version of the Xcode developer tools for the mac. During the build I still saw a few 'incompatible architecture'

Re: [Matplotlib-users] Help with transforms of collections

2009-06-22 Thread Jae-Joon Lee
Tony, My understanding is that (which might be wrong) drawing collections involves (at least) 2 transforms. The first transform is (mostly) for scaling, and the second transform is for offset. And this seems to be true for PolygonCollection (which scatter creates) as far as I can see.

Re: [Matplotlib-users] Help with transforms of collections

2009-06-22 Thread Tony S Yu
On Jun 22, 2009, at 2:57 PM, Jae-Joon Lee wrote: The easiest solution I can think of is doing some monkey patching. import matplotlib.pyplot as plt import matplotlib.transforms as transforms import numpy as np fig = plt.figure() ax = fig.add_subplot(111) x = [0.25, 0.75, 0.25, 0.75] y =

[Matplotlib-users] Help with transforms of collections

2009-06-18 Thread Tony S Yu
I'd like to plot a collection and scale the size of the collection elements in relation to the data. My guess is that I need to use the data transformation (ax.transData) since I would like the size of the collection elements altered when zooming in/out. Unfortunately, my attempt has led to

[Matplotlib-users] help installing matplotlib

2009-04-21 Thread John Seales
I have an intel mac running os 10.4.11. I use python 2.6 I am trying to install matplotlib and I can't figure it out. Can anyone help me? _ Windows Live™ Hotmail®:…more than just e-mail.

[Matplotlib-users] help me to understand please

2009-03-28 Thread Bala subramanian
Friends, In the following. I am not able to understand how this plot.show() works. I have commented the problem in the following examples. plt.plot(x,y,'b-') [matplotlib.lines.Line2D object at 0x9e50ecc] plt.show() *# shows the plot of x Vs y* plt.ylim( (1.5,4.5) ) (1.5, 4.5) plt.show()

Re: [Matplotlib-users] help me to understand please

2009-03-28 Thread Sandro Tosi
On Sat, Mar 28, 2009 at 15:45, Bala subramanian bala.biophys...@gmail.com wrote: Friends, In the following. I am not able to understand how this plot.show() works. I have commented the problem in the following examples. You have to call plt.show() only when you want to actually show the

[Matplotlib-users] Help with simply plotting 2d array, please

2009-02-25 Thread lionel keene
Hello all, I've been trying for days but I can't seem to get the result I'm looking for. I have a 2d array of type numpy.ndarray which I'd like to plot as a simple color map. I'd like to plot it in the upper-lefthand corner of the client area in a wxPython frame. The plotting needs to be a very

Re: [Matplotlib-users] Help with simply plotting 2d array, please

2009-02-25 Thread Tom K.
LKeene wrote: - I have a numpy.ndarray of data with 350 rows and 500 columns. How do I display it in the upper-left hand corner of the frame client with no tick marks/labels, etc...just the colormap at screen coords(0,0)-(349,499) (rows,columns)? Could someone post a few lines to do

Re: [Matplotlib-users] Help with simply plotting 2d array, please

2009-02-25 Thread Jae-Joon Lee
I don't use wx so i'm not sure if this could be helpful, but you may check the figimage command. http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.figimage Note that it draws the image directly into the figure, thus no axes is needed. -JJ On Wed, Feb 25, 2009 at 6:09

[Matplotlib-users] help visualizing plots

2009-02-16 Thread Simone Gabbriellini
dear list, can someone tell me why I don't see anything when I run this script? it is a modified version of the traits example... I expected to see three plots with one line each... from enthought.traits.api import HasTraits, Instance, Range, Array, on_trait_change, Property,cached_property,

[Matplotlib-users] Help with MatPlotLib

2008-11-04 Thread Dennis Caceres
Hello, I am trying to install MatPlotLib and I can't seem to get it to work. Any help with this problem would be greatly appreciated. THANKS! Below are are facts about my system. $ uname -a CYGWIN_NT-5.1 (Prefer not to display) 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin $ python

Re: [Matplotlib-users] Help with MatPlotLib

2008-11-04 Thread Michael Droettboom
I'm not a regular Windows user myself, but the following threads from a couple weeks ago might be relevant: http://www.nabble.com/Matplotlib-in-Cygwin-td20069116.html http://www.nabble.com/failure-with-python-setup.py-build-td20092879.html Please let us know how that works for you.

[Matplotlib-users] help with matplotlib.path class

2008-10-30 Thread Amitava Maity
Hello list, I have generated the following tuples: (1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2) ((39525.5401, 144.91), (39525.5401, 161.352), (39874.5, 149.5), (39874.5, 166.142), (40205.0, 150.41), (40205.0, 167.051999), (40518.4497,

Re: [Matplotlib-users] help with matplotlib.path class

2008-10-30 Thread Michael Droettboom
If your first tuple is codes, and second is vertices, You can do: from matplotlib import path from matplotlib import patches from matplotlib import pyplot as plt patch = patches.PathPatch(path.Path(vertices, codes)) plt.gca().add_patch(patch) plt.show() However... rather than going through

Re: [Matplotlib-users] help with matplotlib.path class

2008-10-30 Thread Amitava Maity
Thanks, Being a novice, I am trying the first thing in the example gallery that caught my eye. Vlines does seem to be a better option. But what's puzzling me is why do I get just a plot of the axes with the following code? Where are the vertical lines that I am looking for? from matplotlib

Re: [Matplotlib-users] help with matplotlib.path class

2008-10-30 Thread Michael Droettboom
The limits don't get automatically adjusted when using add_patch(). You could do something like: plt.gca().set_xlim(min([x for x, y in vertices]), max([x for x, y in vertices])) plt.gca().set_ylim(min([y for x, y in vertices]), max([y for x, y in vertices])) Again, vlines will do all this for

Re: [Matplotlib-users] help with matplotlib.path class

2008-10-30 Thread Amitava Maity
Thanks, vlines is definitely the better option. By the way, I am using the Enthought python distribution for Windows. I could not get the desired output from the ipython -pylab shell. But the same code when run in SciTe and IDLE gave the desired output. On Thu, 30 Oct 2008 Michael

Re: [Matplotlib-users] Help: How to limit text to a definite area

2008-09-10 Thread John Hunter
On Wed, Sep 10, 2008 at 2:55 PM, Samir Wadhawan [EMAIL PROTECTED] wrote: Hi, I am trying to draw a rectangle of a fixed size and them put a lable/text on it. However if the text is too long, it goes out of bounds. Is there a way I restrict the text within the rectangle margins. would it

[Matplotlib-users] Help with converting from scilab

2008-07-25 Thread Peter Wesbdell
Hello all, my first post here. I am moving from using scilab to Pylab, can anyone tell me why the two following snippets of code produce very different results? BTW. The scilab code produces the expected result. Scilab: Lx=1; Ly=1; n=2; m=2; f=100; w=2*%pi*f; t=1; A=2; Kx=n*%pi/Lx;

Re: [Matplotlib-users] Help with converting from scilab

2008-07-25 Thread John Hunter
On Fri, Jul 25, 2008 at 10:22 AM, Peter Wesbdell [EMAIL PROTECTED] wrote: Hello all, my first post here. I am moving from using scilab to Pylab, can anyone tell me why the two following snippets of code produce very different results? BTW. The scilab code produces the expected result. I

Re: [Matplotlib-users] help error

2008-07-02 Thread Darren Dale
Hi Gideon, On Wednesday 02 July 2008 11:34:46 am Gideon Simpson wrote: So no one else has seen this bug? I'm on an OS X 10.5.4 machine with fink python 2.5.2 and associated backend packages. i'm using my own builds of numpy/scipy and matplotlib. -gideon (Please don't top post, it makes it

Re: [Matplotlib-users] help error

2008-07-01 Thread Darren Dale
In lib/matplotlib/__init__.py, set NEWCONFIG=False and reinstall. On Tuesday 01 July 2008 00:02:51 Gideon Simpson wrote: Just tried the 0.98.2, and am still getting: help modules Please wait a moment while I gather a list of all available modules... Traceback (most recent call last):

Re: [Matplotlib-users] help error

2008-07-01 Thread Gideon Simpson
It's already set to False I've completely blown away my installation, including removing ~/.matplotlib, and this problem is still showing up. -gideon On Jul 1, 2008, at 7:20 AM, Darren Dale wrote: In lib/matplotlib/__init__.py, set NEWCONFIG=False and reinstall. On Tuesday 01 July 2008

Re: [Matplotlib-users] help error

2008-07-01 Thread John Hunter
On Tue, Jul 1, 2008 at 8:13 AM, Gideon Simpson [EMAIL PROTECTED] wrote: It's already set to False I've completely blown away my installation, including removing ~/.matplotlib, and this problem is still showing up. -gideon Please run a test pylab script with --verbose-debug and post the

Re: [Matplotlib-users] help error

2008-07-01 Thread Gideon Simpson
[EMAIL PROTECTED] python simple_plot.py --verbose-debug run.out $HOME=/Users/gideon CONFIGDIR=/Users/gideon/.matplotlib matplotlib data path /opt/lib/python2.5/site-packages/matplotlib/mpl- data loaded rc file /opt/lib/python2.5/site-packages/matplotlib/mpl-data/ matplotlibrc matplotlib version

Re: [Matplotlib-users] help error

2008-07-01 Thread John Hunter
On Tue, Jul 1, 2008 at 8:22 AM, Gideon Simpson [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] python simple_plot.py --verbose-debug run.out $HOME=/Users/gideon CONFIGDIR=/Users/gideon/.matplotlib matplotlib data path /opt/lib/python2.5/site-packages/matplotlib/mpl- data loaded rc file

  1   2   >