Hello,
I'm using boost python to run python embedded in a C++ application on
windows. I would like to be able to have the scripts that run in this
embedded environment be able to display matplotlib plots. I have searched
in vain for information on the nuances of running matplotlib pylab plots in
an embedded c++ environment and am hoping someone can help me out.
My C++ application has an event handler to run a python script when the user
so chooses. From this main message thread I execute a script file (using
boost::python::exec_file() ) and if that script does a pylab plot of data
the first time through everything works fine. An example script would be
something like:
fig = pylab.figure()
pylab.imshow( myImage )
pylab.show()
I am able to interact with the plot window just fine and close it from the
upper right window controls. However, if I run the same script again from
my app the figure window comes up with my data but the window is now dead.
I am unable to interact or even close the figure window. When I try to move
the window my app crashes.
I want the plotting to behave synchronously so that control is not returned
to my app until the plot is dismissed. However, after the first show it
seems that interactivity is automatically enabled for matplotlib. I've
tried explicitly turning interactivity off in the script ( pylab.ioff() )
but show seems to automatically turn it back on.
I'm just not sure of all I need to do to get this working so that I can
bring up the plot over and over. BTW I've configured my matplotlib with a
wxAgg backend. Can anyone help me out here or point me to information on
embedding matplotlib in c++? Thanks in advance….
J.D.
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