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Using matplotlib with PyScripter
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1) Choose the right Python engine (Run, Python Engine menu option) for the backend of your
choice e.g. Remote engine Tk for the "TkAgg" backend or Remote Engine wx for the "WX" and
"WxAggg" backends.
2) Assuming that you have selected the Remote Engine wx, issue the following commands in the
interpreter:
>>> import matplotlib
>>> matplotlib.interactive(True)
>>> matplotlib.use("WXAgg")
>>> from matplotlib.pylab import *
>>> plot([1,2,3])
>>> xlabel('time (s)')
You can set the backend and interactive mode in the matplotlibrc file. If this is done, the following
is sufficient for the above example:
>>> from pylab import *
>>> plot([1,2,3])
>>> xlabel('time (s)')
3) Issue more pylab commands, or close the pylab window and call plot again for a new plot, etc.
Sample script by heylam
#Tested on: PyScripter 1.9.9.2, Matplotlib 0.91.2
#Assumed setup:
#In site-packages\matplotlib\mpl-data\matplotlibrc set backend to WXAgg.
def demoplot():
'''This represents your work'''
close('all') #closes figures
t = c_[0:1:20j]
s = cos(2*pi*t)
for ampl in c_[0.1:1:10j]:
plot(t, ampl*s, 'o-', lw=2)
xlabel('time (s)')
ylabel('voltage (mV)')
title('demo', color='b')
grid(True)
draw() #update figure if already shown
#Select a demonstration:
if 0: #Normal session
#Starts non-interactive.
#Figures have toolbar for zooming and panning.
#Disadvantage: You can't re-run your script with PyScripter Remote
# engine without first reinitializing the Remote interpreter.
#Best use Remote(Wx) engine. This also allows interactive mode using
# ion() and ioff(). For disadvantages: see the PyScripter help file.
#from numpy import *
#from scipy import * #includes numpy
from pylab import * #includes scipy
demoplot()
show() #Open the figure, let figure GUI take over.
#This should be last line of script.
#You can also type this at command line after the script exits.
if 0:
ion() #turns interactive mode on (needs Remote(Wx) engine!)
ylabel('interactive modification')
plot( rand(200), rand(200), 'go' )
ioff() #turns interactive mode off
elif 0: #Same but use WX instead
try:
type(matplotlib)
except NameError:
import matplotlib
matplotlib.use('WX')
from matplotlib.pylab import *
demoplot()
show() #Open the figure, let figure GUI take over.
#This should be last line of script.
#You can also type this at command line after the script exits.
elif 0: #Same but start as interactive session, needs Remote(Wx)engine.
try:
type(matplotlib)
except NameError:
import matplotlib
matplotlib.interactive(True)
from matplotlib.pylab import *
demoplot()
show() #Open the figure, let figure GUI take over.
#This should be last line of script.
#You can also type this at command line after the script exits.
elif 0:#pdf output, allows use of Remote engine without re-initialization.
#Disadvantage: no figure toolbar.
#WARNING: close the file in acrobat reader before the next run.
#(Maybe other pdf viewers don't block file overwrite?)
try:
type(matplotlib)
except NameError:
import matplotlib
matplotlib.use('PDF')
from pylab import *
demoplot()
filename='demo_plot'
savefig(filename)
#view the file:
import win32api
win32api.ShellExecute(0, "open", filename+'.pdf', None, "", 1)
elif 1:#png output, allows use of Remote engine without re-initialization.
#Disadvantage: no figure toolbar.
#Tip: make Irfanview your standard viewer.
from pylab import *
demoplot()
filename='demo_plot'
savefig(filename)
#view the file:
import win32api
win32api.ShellExecute(0, "open", filename+'.png', None, "", 1)