On Fri, Feb 17, 2012 at 12:41:27AM -0800, Anne Schilling wrote:
> Do posets have a latex method? Or can they only be viewed using .show()?
Apparently not:
sage: P = Posets().example()
sage: P._latex_
...
AttributeError: 'FiniteSetsOrderedByInclusion_with_category' object has no
attribute '_latex_'
I have the following in my .sage/init.sage:
view_std = view
def view(x, **options):
options["tightpage"] = True
options["pdflatex"] = True
if x in Crystals():
x = x.digraph()
if x in Posets().Finite():
x = x.hasse_diagram()
if isinstance(x, DiGraph):
latex_options = {'format': "dot2tex",
'edge_labels':True,'color_by_label':{1:"blue", 2:"red", 3:"green",
4:"yellow",-1:"blue", -2:"red", -3:"green",-4:"yellow"}, 'edge_options': lambda
(u,v,l): {'backward': l is not None and l>0}}
if x._latex_opts is not None:
latex_options.update(x._latex_opts._options)
x = copy(x)
x.set_latex_options(**latex_options)
view_std(x, **options)
You might recognize the typical applications :-)
Cheers,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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