def stream_plot() needs to set the content type
response.headers['Content-Type'] = 'image/png' On Thursday, 28 November 2013 03:38:06 UTC-6, Oleksandr Levchenko wrote: > > Hello, > > I tried to generate a image stream with matplotlib and return in into > html. Something like > http://www.web2pyslices.com/slice/show/1357/matplotlib-howto > It works perfectly. > > In comparison to this, I want generate several image's streams in one > function, and then get it out. > The idea behind this is that I have similar calculation for some images > and I want it run only once time. > > The code should be: > > def plot1(type=s): > xxxxxx > xxxxxx > return stream.getvalue() > ##------------------------------------------------------------------- > ##------------------------------------------------------------------- > def stream_plot(): > res1 = plot1(type1) > res2= plot1(type2) > return res1, res2 > ##------------------------------------------------------------------- > ##------------------------------------------------------------------- > def controllerfunc(): > test1,test2 = stream_plot() > return dict(bc=IMG(_src=test1), bc1=IMG(_src=test2)) > > In the last function, bc and bc1 will be directly showed in the view like > {{=bc}}, {{=bc1}} > > > But I have a problem. Instead of image in view , I see something like > "�PNG%1A���IHDR��%05�%03%7C%08%06��������%04sBIT%08%08%08%08%7C%08d����pHYs��%0Fa��%0Fa%".. > > > > What is wrong with this code ? > > Thank you for your advise! > > > > > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
