matplotlib-users Mailing List for matplotlib (Page 2)

Hello 
   
  Thanks for those whom have helped. I manage to get it to work but it is not working so smoothly. Does anyone know of another way I can achieve pleasant results? I am new to this with python and am trying to get my head around this. Basically I would like to plot a log file continuously whereby I can still use the span, zoom and rehome buttons without it opening many other windows.
   
  Here is the code to generate the log data file:
   
  import time
import math
import random
  def test():
    for i in range(900):
        fileData = open('c:\\data.txt','a')
        time.sleep(1)  
        fileData.write('%d' % int(i))
        fileData.write('\t')
        fileData.write('%f' % int(random.random()*5))
        fileData.write('\n')
        fileData.close()
        print('*'),
  test()
   
  Here is a code to plot with some edits and credit given to previous kind helpers.
   
  from pylab import *
import time
  tstart = time.time()
  while True:
    ion()
    inData = load('c:\\data.txt')
    x = inData[:,0]
    y = inData[:,1]
    plot(x,y,'o')
    draw()
    time.sleep(2)
    print 'FPS:' , 200/(time.time()-tstart)
   
  Looking forward to your help....BR /Ray
   

       
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Dear users,
I would like to generate a colored histogram using a colormap.
via
...
vals, bins, patchs = pylab.hist(hist_data ,75 ,normed=1)
..
Does anybody know how to assign a colormap to a histogram to find map data
so that one can find easily data from a 2d map in the histogram?

Thanks a lot,
dirk

On Dec 2, 2007 9:23 PM, Chris Fonnesbeck <lis...@ma...> wrote:
> Running a recent build from svn on OSX 10.5, the TkAgg interface
> becomes unresponsive after plotting a histogram and calling show().
> Here is a sample from the process, in case it is useful:

I'm not seeing this with tkagg on 10.5.  hist is working fine for me
both in ipython and running histogram_demo.py -- what tcl/tk are you
building against?

For reference,  I'm attaching my build output.  My build notes are at
http://ipython.scipy.org/moin/Py4Science/InstallationOSX.  Let me know
if any substantive differences leap out at you.

JDH

Running a recent build from svn on OSX 10.5, the TkAgg interface
becomes unresponsive after plotting a histogram and calling show().
Here is a sample from the process, in case it is useful:

Sampling process 5635 for 3 seconds with 1 millisecond of run time
between samples
Sampling completed, processing symbols...
Analysis of sampling Python (pid 5635) every 1 millisecond
Call graph:
    2496 Thread_2503
      2496 0x1f84
        2496 Py_Main
          2496 PyRun_SimpleFileExFlags
            2496 PyRun_FileExFlags
              2496 PyErr_Display
                2496 PyEval_EvalCode
                  2496 PyEval_EvalCodeEx
                    2496 PyEval_EvalFrameEx
                      2496 PyEval_EvalCodeEx
                        2496 PyEval_EvalFrameEx
                          2496 PyEval_EvalCodeEx
                            2496 PyEval_EvalFrameEx
                              2496 PyEval_EvalCodeEx
                                2496 PyEval_EvalFrameEx
                                  2496 PyEval_EvalCodeEx
                                    2496 PyEval_EvalFrameEx
                                      2496 PyAST_FromNode
                                        2496 PyOS_Readline
                                          2496 0x4521e0
                                            2496 select$DARWIN_EXTSN
                                              2496 select$DARWIN_EXTSN

Total number in stack (recursive counted multiple, when >=5):
        5       PyEval_EvalCodeEx
        5       PyEval_EvalFrameEx

Sort by top of stack, same collapsed (when >= 5):
        select$DARWIN_EXTSN        2496
Sample analysis of process 5635 written to file /dev/stdout