On Sun, Mar 3, 2013 at 2:46 PM, Matthias BUSSONNIER <bussonniermatth...@gmail.com> wrote: > > Le 3 mars 2013 à 14:26, Thomas Hisch a écrit : > >> Hi, >> >> On Sun, Mar 3, 2013 at 12:11 PM, Matthias BUSSONNIER >> <bussonniermatth...@gmail.com> wrote: >>> Hi, >>> Le 3 mars 2013 à 08:41, Thomas Hisch a écrit : >>> >>>> Hello, >>>> >>>> the sympy printing extension configures formatters for rendering latex >>>> expressions: image/png and text/latex. According to [0] all >>>> representations of an object for which multiple formatters are >>>> registers will be calculated and sent to the frontend but only one is >>>> displayed in the frontend. Is there a way to switch the default >>>> displayed repr in the frontend (without using display_xxx manually for >>>> each obj)? >>> >>> On dev version of the notebook, you can monkey-patch the javascript : >>> >>> IPython.OutputArea.display_order >>> >>> Which default value is : >>> >>> [ "javascript", "html", "latex", "svg", "png", "jpeg", "text" ] >>> >>> It is not really supported yet, and have chance of not working at load time. >> >> I want to avoid monky-patching the javascript part of the notebook as >> a fix for the 'display-order' problem should be integrated into the >> sympy printing extension. I can think of disabling the latex_formatter >> with latex_formatter.enabled=False in [0] and if mathjax rendered >> output is desired then set 'enabled' to True. > > I think that it is what %load_ext sympyprinting does. It enables the Latex > representation.
The sympy printing ext. is now hosted in the sympy repo and can be loaded with %load_ext sympy.interactive.ipythonprinting. This does not set up the formatter for 'text/latex' ! You have to call sympy.interactive.init_printing(use_latex=True) to initialize the extension. Once the latex repr is enabled one can't switch the output to 'image/png' (due to the output order in the frontend) by calling init_printing with a different set of options. This is what I need to fix for my PR. > >> >> @sympy devs: is enabling and disabling the latex_formatter an option >> to be able to switch between png output and mathjax output in the >> notebook/qtconsole? (This problem is related to [1]) > > I suppose the question of enabling/disabling the representation is a question > of computation time, > but otherwise, I suggest not to disable representations. > Especially, it is not because a representation is not shown in one frontend > that it is not stored in the notebook document. > > All the representation are computed, and store so that nbconvert can use it > when converting for example. > > So it is **really** a question of frontend to know wether or not show latex > or png or jpeg. A function in IPython to change the 'output order' for specified frontends would be ideal. Thomas > > -- > Matthias > > > > > >> Regards >> thomas >> >> >> [0] >> https://github.com/sympy/sympy/blob/master/sympy/interactive/printing.py#L144 >> [1] https://github.com/sympy/sympy/pull/1776 >>> -- >>> Matthias >>> >>> >>>> >>>> Regards >>>> Thomas >>>> >>>> [0] >>>> http://ipython.org/ipython-doc/dev/api/generated/IPython.core.display.html >>>> _______________________________________________ >>>> IPython-User mailing list >>>> ipython-u...@scipy.org >>>> http://mail.scipy.org/mailman/listinfo/ipython-user >>> >>> _______________________________________________ >>> IPython-User mailing list >>> ipython-u...@scipy.org >>> http://mail.scipy.org/mailman/listinfo/ipython-user >> _______________________________________________ >> IPython-User mailing list >> ipython-u...@scipy.org >> http://mail.scipy.org/mailman/listinfo/ipython-user > > _______________________________________________ > IPython-User mailing list > ipython-u...@scipy.org > http://mail.scipy.org/mailman/listinfo/ipython-user -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
