How to maximize a plt show window using Python

Question

Just for curiosity I would like to know how to do this in the code below  I have been searching for an answer but is useless   import numpy as np import matplotlib pyplot as plt data np random exponential scale 180  size 10000  print   el valor medio de la distribucion exponencial es     print np average data  plt hist data bins len data   0 5 normed True  cumulative True  facecolor  red   label  datos tamano paqutes acumulativa   alpha 0 5  plt legend   plt xlabel  algo   plt ylabel  algo   plt grid   plt show

User · Answer

Try plt figure figsize  6 3 13 4 3 13   to make the plot larger

User · Answer

Try using  Figure set size inches  method  with the extra keyword argument forward True  According to the documentation  this should resize the figure window   Whether that actually happens will depend on the operating system you are using

User · Answer

This is kind of hacky and probably not portable  only use it if you re looking for quick and dirty  If I just set the figure much bigger than the screen  it takes exactly the whole screen   fig   figure figsize  80  60     In fact  in Ubuntu 16 04 with Qt4Agg  it maximizes the window  not full-screen  if it s bigger than the screen   If you have two monitors  it just maximizes it on one of them

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For backend GTK3Agg  use maximize   -- notably with a lower case m  manager   plt get current fig manager   manager window maximize    Tested in Ubuntu 20 04 with Python 3 8

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I found this for full screen mode on Ubuntu   Show full screen mng   plt get current fig manager   mng full screen toggle

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Ok so this is what worked for me  I did the whole showMaximize   option and it does resize your window in proportion to the size of the figure  but it does not expand and  fit  the canvas  I solved this by   mng   plt get current fig manager                                            mng window showMaximized   plt tight layout       plt savefig  Images SAVES PIC AS PDF pdf     plt show

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Here is a function based on  Pythonio s answer  I encapsulate it into a function that automatically detects which backend is it using and do the corresponding actions   def plt set fullscreen        backend   str plt get backend        mgr   plt get current fig manager       if backend     TkAgg           if os name     nt               mgr window state  zoomed           else              mgr resize  mgr window maxsize        elif backend     wxAgg           mgr frame Maximize True      elif backend     Qt4Agg           mgr window showMaximized

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The following may work with all the backends  but I tested it only on QT   import numpy as np import matplotlib pyplot as plt import time  plt switch backend  QT4Agg    default on my system print  Backend      format plt get backend      fig   plt figure   ax   fig add axes  0 0  1 1   ax axis  0 10  0 10   ax plot 5  5   ro    mng   plt  pylab helpers Gcf figs get fig number  None   mng window showMaximized    maximize the figure time sleep 3  mng window showMinimized    minimize the figure time sleep 3  mng window showNormal    normal figure time sleep 3  mng window hide    hide the figure time sleep 3  fig show    show the previously hidden figure  ax plot 6 6   bo    just to check that everything is ok plt show

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I am on a Windows  WIN7   running Python 2 7 5  amp  Matplotlib 1 3 1  I was able to maximize Figure windows for TkAgg  QT4Agg  and wxAgg using the following lines  from matplotlib import pyplot as plt      for  TkAgg  backend plt figure 1  plt switch backend  TkAgg    TkAgg  instead Qt4Agg  print   1 Backend   plt get backend   plt plot  1 2 6 4   mng   plt get current fig manager       works on Ubuntu     gt  gt  did NOT working on windows   mng resize  mng window maxsize    mng window state  zoomed    works fine on Windows  plt show    close the figure to run the next section      for  wxAgg  backend plt figure 2  plt switch backend  wxAgg   print   2 Backend   plt get backend   plt plot  1 2 6 4   mng   plt get current fig manager   mng frame Maximize True  plt show    close the figure to run the next section      for  Qt4Agg  backend plt figure 3  plt switch backend  QT4Agg    default on my system print   3 Backend   plt get backend   plt plot  1 2 6 4   figManager   plt get current fig manager   figManager window showMaximized   plt show    if you want to maximize multiple figures you can use for fig in figs      mng   fig canvas manager            Hope this summary of the previous answers  and some additions  combined in a working example  at least for windows  helps  Cheers

User · Answer

For Tk-based backend  TkAgg   these two options maximize  amp  fullscreen the window  plt get current fig manager   window state  zoomed   plt get current fig manager   window attributes  -fullscreen   True   When plotting into multiple windows  you need to write this for each window  data   rasterio open filepath   blue  green  red  nir   data read   plt figure 1  plt subplot 121   plt imshow blue   plt subplot 122   plt imshow red   plt get current fig manager   window state  zoomed    rgb   np dstack  red  green  blue   nrg   np dstack  nir  red  green   plt figure 2  plt subplot 121   plt imshow rgb   plt subplot 122   plt imshow nrg   plt get current fig manager   window state  zoomed    plt show    Here  both  figures  are plotted in separate windows  Using a variable such as figure manager   plt get current fig manager    might not maximize the second window  since the variable still refers to the first window

User · Answer

With Qt backend  FigureManagerQT  proper command is   figManager   plt get current fig manager   figManager window showMaximized

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Pressing the f key  or ctrl f in 1 2rc1  when focussed on a plot will fullscreen a plot window  Not quite maximising  but perhaps better   Other than that  to actually maximize  you will need to use GUI Toolkit specific commands  if they exist for your specific backend    HTH

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I usually use  mng   plt get current fig manager   mng frame Maximize True    before the call to plt show    and I get a maximized window  This works for the  wx  backend only   EDIT   for Qt4Agg backend  see kwerenda s answer

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This makes the window take up the full screen for me  under Ubuntu 12 04 with the TkAgg backend       mng   plt get current fig manager       mng resize  mng window maxsize

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This doesn t necessarily maximize your window  but it does resize your window in proportion to the size of the figure   from matplotlib import pyplot as plt F   gcf   Size   F get size inches   F set size inches Size 0  2  Size 1  2  forward True  Set forward to True to resize window along with plot in figure  plt show    or plt imshow z array  if using an animation  where z array is a matrix or numpy array   This might also help  http   matplotlib 1069221 n5 nabble com Resizing-figure-windows-td11424 html

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I get mng frame Maximize True  AttributeError  FigureManagerTkAgg instance has no attribute  frame  as well   Then I looked through the attributes mng has  and I found this    mng window showMaximized     That worked for me   So for people who have the same trouble  you may try this   By the way  my Matplotlib version is 1 3 1

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The one solution that worked on Win 10 flawlessly   import matplotlib pyplot as plt  plt plot x data  y data   mng   plt get current fig manager   mng window state  zoomed   plt show

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In my versions  Python 3 6  Eclipse  Windows 7   snippets given above didn t work  but with hints given by Eclipse pydev  after typing  mng    I found   mng full screen toggle     It seems that using mng-commands is ok only for local development

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My best effort so far  supporting different backends   from platform import system def plt maximize          See discussion  https   stackoverflow com questions 12439588 how-to-maximize-a-plt-show-window-using-python     backend   plt get backend       cfm   plt get current fig manager       if backend     wxAgg           cfm frame Maximize True      elif backend     TkAgg           if system       win32               cfm window state  zoomed      This is windows only         else              cfm resize  cfm window maxsize        elif backend     QT4Agg           cfm window showMaximized       elif callable getattr cfm   full screen toggle   None            if not getattr cfm   flag is max   None               cfm full screen toggle               cfm flag is max   True     else          raise RuntimeError  plt maximize   is not implemented for current backend    backend

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This should work  at least with TkAgg    wm   plt get current fig manager   wm window state  zoomed      adopted from the above and Using Tkinter  is there a way to get the usable screen size without visibly zooming a window

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For me nothing of the above worked  I use the Tk backend on Ubuntu 14 04 which contains matplotlib 1 3 1   The following code creates a fullscreen plot window which is not the same as maximizing but it serves my purpose nicely   from matplotlib import pyplot as plt mng   plt get current fig manager   mng full screen toggle   plt show

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import matplotlib pyplot as plt def maximize        plot backend   plt get backend       mng   plt get current fig manager       if plot backend     TkAgg           mng resize  mng window maxsize        elif plot backend     wxAgg           mng frame Maximize True      elif plot backend     Qt4Agg           mng window showMaximized     Then call function maximize   before plt show

[python] How to maximize a plt.show() window using Python

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