Re: [Matplotlib-users] axes in matplotlib

2010-09-30 Thread sa6113

Thans for your help.

I don't have mpl_toolkits.axes_grid1 and mpl_toolkits.axisartist modules.
would you please help me to download them.
which release I need to install?


sa6113 wrote:
 
 I want to use more than 2 axes in my plot, for example yleft,yright,
 butoom or top, is it possible?
 any body had done it before?
 
 I read in matplotlib's document that :  matplotlib is organized around
 figures and axes. The figure contains an arbitrary number of axes, which
 can be placed anywhere in the figure you want, including over other axes.
 You can directly create and manage your own figures and axes.
 How?
 

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[Matplotlib-users] axes in matplotlib

2010-09-26 Thread sa6113

I want to use more than 2 axes in my plot, for example yleft,yright, butoom
or top, is it possible?
any body had done it before?

I read in matplotlib's document that :  matplotlib is organized around
figures and axes. The figure contains an arbitrary number of axes, which can
be placed anywhere in the figure you want, including over other axes. You
can directly create and manage your own figures and axes.
How?
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Re: [Matplotlib-users] How by clicking an axes label open a dialog?

2010-09-15 Thread sa6113

Whould you please help me? I am looking forward.

sa6113 wrote:
 
 
 I want to use backendQtAgg inorder to imbed plot dialog into basic dialog
 and by clicking the labels open plot option.
 I couldn't use 'motion_notify_event' because the event only handles into
 plot area not in canvas area!!!
 anybody knows?
 
 

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Re: [Matplotlib-users] How by clicking an axes label open a dialog?

2010-09-15 Thread sa6113

Whould you please help me? I am looking forward.

sa6113 wrote:
 
 
 I want to use backendQtAgg inorder to imbed plot dialog into basic dialog
 and by clicking the labels open plot option.
 I couldn't use 'motion_notify_event' because the event only handles into
 plot area not in canvas area!!!
 anybody knows?
 
 

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[Matplotlib-users] problem in showing the plot!!!

2010-09-10 Thread sa6113

when I want to show the plot canvas, it doesn't stay at all, note that I need
to use backendQtagg, I mean when I use pylab there is no problem in
showing the plot canvas, what is the problem? please help me.
I use this simple code:

from matplotlib.backends.backend_qtagg import FigureCanvasQTAgg as
FigureCanvas
from matplotlib.figure import Figure

x = numarray.arange(10)
y = numarray.arange(10)
fig = Figure(figsize=(5, 5))

axes = fig.add_subplot(111)
axes.plot(x,y)
canvas   = FigureCanvas(   fig)
xlabel('sahar')
canvas.show()

The plot just winks.
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[Matplotlib-users] How by clicking an axes label open a dialog?

2010-09-09 Thread sa6113


I want to use backendQtAgg inorder to imbed plot dialog into basic dialog
and by clicking the labels open plot option.
I couldn't use 'motion_notify_event' because the event only handles into
plot area not in canvas area!!!
anybody knows?

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[Matplotlib-users] print to aprint device!

2010-07-13 Thread sa6113

Dear all,

I want to print the plotted curves to a printer NOT to a file.
if you know somthing such as QwtPlotPrintFilter  class in Qwt.

Which module help me?

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Re: [Matplotlib-users] set font problem.

2008-09-14 Thread sa6113

Thanks for your help, it works, but it is very difficult because I want to
show a FontDialog contains all fonts in system to user and change the plot
text (Legend, Label and ex.) font to that.
How may I accomplish that? Is there any way?


sa6113 wrote:
 
 I want to set all font system to my texts, but I can't set all the fonts.
 I am using this code:
 
 font= FontProperties(   size='small' ,fname = 'Tahoma'  )
 self.ax.legend(line,   label,  legend , prop = font )
 
 It raises this error :
 font = FT2Font(str(fname))
 RuntimeError: Could not open facefile Tahoma; Cannot_Open_Resource
 
 Should I add a font family for that before? How?
 

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[Matplotlib-users] set font problem.

2008-09-13 Thread sa6113

I want to set all font system to my texts, but I can't set all the fonts. I
am using this code:

font= FontProperties(   size='small' ,fname = 'Tahoma'  )
self.ax.legend(line,   label,  legend , prop = font )

It raises this error :
font = FT2Font(str(fname))
RuntimeError: Could not open facefile Tahoma; Cannot_Open_Resource

Should I add a font family for that before? How?
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Re: [Matplotlib-users] font style problem!

2008-08-20 Thread sa6113

family define font name here.


sa6113 wrote:
 
 I use this code to set plot legend font :
 
  font = FontProperties(family ='monospace',style = 'italic',size='large',
 weight='bold')
  self.ax.legend( line,   label,  legend , prop = font)
 
 but font style dosen't effect while other properties set properly.
 what is the problem??
 

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[Matplotlib-users] how add axes scale to my plot?

2008-07-30 Thread sa6113

I am using matplotlib to draw and show my plot, now I want to know how may I
add manual axes scale to it.
I need to manually show the axes scale (from min to max value that I have)
the below is some part of my code.
.
.
.
from   matplotlib.figureimport Figure

self.fig = Figure(  figsize =5, 4 ))
yLine   = self.ax.plot(  xData,  yData,  'ro-', linewidth = 2   )
fitLine = self.ax.plot(  xData,  fitData,'bo-', linewidth = 1   )
self.ax.set_xlabel('X')
self.ax.set_ylabel('Y )
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Re: [Matplotlib-users] how to save animation

2008-07-01 Thread sa6113

Unfortuantly this link dosen't help me.
Would be please help me more clear.


sa6113 wrote:
 
 Thanks for your help but there is a problem while I using this code, it
 raises an error :
 mencoder is not recognized  as an internal or external command, operable
 program or batch file.
 
 
 
 
 Darren Dale-3 wrote:
 
 On Monday 30 June 2008 04:18:14 sa6113 wrote:
 I want to save an animation in avi format by python code, would you
 please
 help me to start in this way?
 
 At the FAQ page, http://matplotlib.sourceforge.net/faq.html , there is a 
 section titled How do I make a movie with matplotlib?
 
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[Matplotlib-users] saving an animation using GTKAgg backend

2008-07-01 Thread sa6113


May I use GTKAgg backend in order to save an animation.
how? please help me.
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[Matplotlib-users] how to save animation

2008-06-30 Thread sa6113

I want to save an animation in avi format by python code, would you please
help me to start in this way?
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Re: [Matplotlib-users] how to save animation

2008-06-30 Thread sa6113

Thanks for your help but there is a problem while I using this code, it
raises an error :
mencoder is not recognized  as an internal or external command, operable
program or batch file.




Darren Dale-3 wrote:
 
 On Monday 30 June 2008 04:18:14 sa6113 wrote:
 I want to save an animation in avi format by python code, would you
 please
 help me to start in this way?
 
 At the FAQ page, http://matplotlib.sourceforge.net/faq.html , there is a 
 section titled How do I make a movie with matplotlib?
 
 -
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 It's the best place to buy or sell services for
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[Matplotlib-users] polyfit degree problem ?

2008-05-03 Thread sa6113

Dear All,

I have a problem using polyfit with a degree greater than 118 :

The code is :
matplotlib.mlab.polyfit(  x,  y,  pow ) # pow is degree of polynomial

for pow in range 118 and  238 the error is :
LinAlgError, 'singular martix'

and for pow greater than 237 this error raise :
OverflowError : math range error
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[Matplotlib-users] ssh options

2008-04-14 Thread sa6113

No one to help me ??


sa6113 wrote:
 
 what options we have for performing ssh (actually scp) on Windows and
 Linux from Python.
 Note that Linux has builtin ssh/scp, hence, pexpect should be a simple
 option, but to the best
 of my knowledge Windows does not anything.  I would like to see a list of
 options on this. 
 
 Would you please help me ?
 
 

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[Matplotlib-users] ssh options

2008-04-12 Thread sa6113

what options we have for performing ssh (actually scp) on Windows and Linux
from Python.
Note that Linux has builtin ssh/scp, hence, pexpect should be a simple
option, but to the best
of my knowledge Windows does not anything.  I would like to see a list of
options on this. 

Would you please help me ?

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[Matplotlib-users] Using PIL in the Linux!

2008-03-26 Thread sa6113

I want to use PIL in order to load from string to Image , but there is a
problem , I can use PIL only in Windows platform whiles I want to use it in
Linux and another Platforms.
What should I do ?
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[Matplotlib-users] load data from string or array to Image

2008-03-26 Thread sa6113


I have a problem to load data from string or array to Image but without
using PIL , because I have to check the application in 6 different platforms
like Windows 32bit, Windows X64 (64bit version), Linux 32bit, Linux 64bit
x86_64, Linux IPF (Itanium Processor Family) and HP-UX 64.

There is a code but I don't want to use PIL :
http://mail.python.org/pipermail/image-sig/1998-October/000572.html

Can I accomplish the same thing using the modules that are already on the
system, or those that are pure Python (not requiring any compilation or
binary download)?

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Re: [Matplotlib-users] Fwd: load data from string or array to Image

2008-03-26 Thread sa6113

I use matplotlib and Backend Agg to draw a plot , I want to show this plot in
my GUI in specific area (Plot area) , I need to have the image object in
oder to show it, so I have to convert this plot to string or array or save
in buffer and then load it to an Image , I want to know , can I accomplish
this without using PIL , because I need to build, test and verify any new
package added to the system on 6 different platforms, and it might take a
long time and at high expertise level to add the module to our entire
system.

What I have to do?
I can convert it to string or array with numpy or FigureCanvas or ect. , my
problem is how to load this array or string to image !
Is it clear?
 

Anthony Floyd-2 wrote:
 
 Forgot to reply-to-list...
 
 -- Forwarded message --
 From: Anthony Floyd [EMAIL PROTECTED]
 Date: Wed, Mar 26, 2008 at 4:54 PM
 Subject: Re: [Matplotlib-users] load data from string or array to Image
 To: sa6113 [EMAIL PROTECTED]
 
 
 On Wed, Mar 26, 2008 at 1:33 AM, sa6113 [EMAIL PROTECTED] wrote:
  
  
I have a problem to load data from string or array to Image but
 without
using PIL , because I have to check the application in 6 different
 platforms
like Windows 32bit, Windows X64 (64bit version), Linux 32bit, Linux
 64bit
x86_64, Linux IPF (Itanium Processor Family) and HP-UX 64.
  
There is a code but I don't want to use PIL :
http://mail.python.org/pipermail/image-sig/1998-October/000572.html
  
Can I accomplish the same thing using the modules that are already on
 the
system, or those that are pure Python (not requiring any compilation
 or
binary download)?
 
  I went through this just a few weeks ago.  Now, mind you I'm using wx
  and numpy already.
 
  My solution was to turn my .png into a Python string using img2py.py
  in the wx/tools directory.
 
  With the string, I then used the following code to return the image (a
  watermark) as an array that figimage() or imshow() can use directly.
  I'm sure the code can be optimized, but it works fast enough for me...
 
  def getWatermarkArray():
 rows = 28
 columns = 200
 dimensions = 3
 
 image = getWatermarkImage()
 # image array is a string of hex values
 imageString = image.GetData()
 
 imageList = [ord(item) for item in imageString]
 
 imageArray = numpy.zeros(shape=(28,200,3), dtype=numpy.float32)
 
 imageCounter = 0
 
 for rowCounter in range(rows):
 for columnCounter in range(columns):
 for dimCounter in range(dimensions):
 imageArray[rowCounter][columnCounter][dimCounter] =
  imageList[imageCounter]/255.
 imageCounter += 1
 
 return imageArray
 
  HTH,
  A
 
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Re: [Matplotlib-users] how load data to Image from String?

2008-03-04 Thread sa6113

How use numpy in order to create Image object from string ?
.
.
.
size = canvas.get_width_height(  )
buffer = canvas.tostring_rgb()
img = numpy.empty(size,numpy.uint32)
img = numpy.fromstring(buffer,numpy.uint32)

img is an array , but I want an Image object (without using PIL ).


sa6113 wrote:
 
 Would you please help me ?
 I want to load data to Image (QImage) from String or binary String without
 using PIL module .
 

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Re: [Matplotlib-users] how load data to Image from String?

2008-03-04 Thread sa6113

I need QImage in order to display or use in GUI , for exa. in QFrame or
QLabel , I can convert the Image to QImage , but the problem is that I
haven't access to Image object without saving that , also I can convert the
figure (Plot) to string or buffer but I don't know what should I do after
that and how convert it to Image.
 
What about numpy or Numerical Python , may I use fromstring or another
function ?
Or what about savining the string binary or buffer in StringIO and then
convert to QImage ?



Christopher Barker wrote:
 
 sa6113 wrote:
 Would you please help me ?
 I want to load data to Image (QImage) from String or binary String
 without
 using PIL module .
 
 you can load data straight into a numpy array with numpy.fromstring() -- 
 if it's in an easy format (RGB, RGBA), then you should be able to go 
 from there.
 
 What do you want to do with the image data?
 
 -CHB
 
 
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 Oceanographer
 
 Emergency Response Division
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Re: [Matplotlib-users] how load data to Image from String?

2008-03-03 Thread sa6113

Is there anyway to use the modules that are already on the system, or those
that are pure Python ?
I want to show a plot that draws with backend agg in my GUI , I mean in a
specified place that its type is Qlabel or QFrame , I don't want to save the
plot befor show it.


Christopher Barker wrote:
 
 sa6113 wrote:
 Would you please help me ?
 I want to load data to Image (QImage) from String or binary String
 without
 using PIL module .
 
 you can load data straight into a numpy array with numpy.fromstring() -- 
 if it's in an easy format (RGB, RGBA), then you should be able to go 
 from there.
 
 What do you want to do with the image data?
 
 -CHB
 
 
 -- 
 Christopher Barker, Ph.D.
 Oceanographer
 
 Emergency Response Division
 NOAA/NOS/ORR(206) 526-6959   voice
 7600 Sand Point Way NE   (206) 526-6329   fax
 Seattle, WA  98115   (206) 526-6317   main reception
 
 [EMAIL PROTECTED]
 
 -
 This SF.net email is sponsored by: Microsoft
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[Matplotlib-users] how load data to Image from String?

2008-03-01 Thread sa6113

Would you please help me ?
I want to load data to Image (QImage) from String or binary String without
using PIL module .
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Re: [Matplotlib-users] Showing the plot in the specific location

2008-02-22 Thread sa6113

I could return the output object of the plot as image file , would you please
tell me how I have to convert image to QImage in order to use it in my GUI ?


sa6113 wrote:
 
 How can I show my plot figure in the specific location or part of an
 application , I am using pylab.
 

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Re: [Matplotlib-users] Showing the plot in the specific location

2008-02-19 Thread sa6113

I am writting an application that evaluate curve fit and draw its plot in a
GUI , I want to draw or show the plot on the GUI not on the pop up window,
but I don't want to save the figure in first step , user just enter an order
for the curve fit and see their plots on the main window (GUI) . 
How can I use pylab for this purpose , does it return and QImage object for
exm. ? 



sa6113 wrote:
 
 How can I show my plot figure in the specific location or part of an
 application , I am using pylab.
 

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Re: [Matplotlib-users] Backend Agg - show plot

2008-02-18 Thread sa6113

Thanks alot for your help, I could show the plot on the screen on python 2.4
.
I've used pyhton 2.3 .


Eric Firing wrote:
 
 sa6113 wrote:
 How should I darw and show a plot using Backend Agg , I don't want to
 save
 figure , just show ?
 
 If you don't want to save a figure, then you will need an interactive 
 backend--not Agg, but TkAgg or GtkAgg etc.  Then you end your script 
 with show() (imported from pylab or matplotlib.pyplot), and the plot 
 will be diplayed on your screen.  (The plain Agg backend is useful only 
 with savefig(...) to generate png files.)
 
 Check out the examples directory in the distribution.
 
 Eric
 
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[Matplotlib-users] Showing the plot in the specific location

2008-02-18 Thread sa6113

How can I show my plot figure in the specific location or part of an
application , I am using pylab.
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Re: [Matplotlib-users] Backend Agg - show plot

2008-02-17 Thread sa6113

My OS is win XP and I run my program from command prompt and IDLE both , and
there isn't any error.
I can save the plot with (savefig) but the show() command dose not work and
I can't see the plot on my screen and also I want to use Backend Agg insted
of pylab.


Darren Dale-2 wrote:
 
 On Sunday 17 February 2008 4:32:39 am sa6113 wrote:
 Thanks for your help
 I use the code below , but the plot wont be diplayed on my screen .

 matplotlib.use('TkAgg')
 import matplotlib.pylab as plt
 fig = plt.figure()
 ax = fig.add_subplot(111)
 ax.plot(x, y, marker='o', linestyle='', markerfacecolor='green')
 ax.set_title('Some random dots')
 ax.set_xlabel('x')
 ax.set_ylabel('y')
 ax.grid(True)
 fig.savefig('myplot.png', dpi=100)
 plt.show()

 Would you please help me ?
 
 We need more information in order to help. What OS are you using, are you 
 running the script from a command prompt or are you running it from the
 IDLE 
 editor, are there any error messages that would help diagnose the problem,
 we 
 need something to go on.
 
 Eric Firing wrote:
  sa6113 wrote:
  How should I darw and show a plot using Backend Agg , I don't want to
  save
  figure , just show ?
 
  If you don't want to save a figure, then you will need an interactive
  backend--not Agg, but TkAgg or GtkAgg etc.  Then you end your script
  with show() (imported from pylab or matplotlib.pyplot), and the plot
  will be diplayed on your screen.  (The plain Agg backend is useful only
  with savefig(...) to generate png files.)
 
  Check out the examples directory in the distribution.
 
  Eric
 
 
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[Matplotlib-users] Backend Agg - show plot

2008-02-16 Thread sa6113

How should I darw and show a plot using Backend Agg , I don't want to save
figure , just show ?
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[Matplotlib-users] Curve fitting ...

2008-02-11 Thread sa6113

Hello there,

I have a problem on curve fitting , would you please help me ?!

I want to to develop a application that reads a text file with 2 columns of
floating point data (as x and y) and performs a polynomial curve fit of the
data at the order specified by the end user and then provides the curve-fit
coefficients
as well as the curve fit errors.

My problem is in curve fit errors , I want to abtain Max and L2-norm of
error.

In addition I use matplotlib.mlab module  and polyfit function for
computing polynomial curve fit.

Regards.

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