(LaTeX/dot2tex) view posets with edge and vertex labels

[Martin R]

is it possible to display a poset with (LaTeX) labels on the covering relations and (LaTeX) labels on the vertices?

For example:

sage: P = Poset([[1,2,3,4], [[1,2], [2,3], [1,4]]])
sage: e = {i: "$q^%s$" % i for i in P}
sage: c = {(i,j): "$%s^%s$" % (i, j) for i, j in P.cover_relations()}
sage: P.plot(element_labels=e, cover_labels=c)

This almost works.  Unfortunately, the layout is not the dot2tex layout, which I need because my posets are large, and it displays 'None' instead of the edge label.

Martin

[Martin R]

Sorry for answering my own question.

It seems that

sage: P = Poset([[1,2,3,4], [[1,2], [2,3], [1,4]]])

sage: e = {i: LatexExpr("q^%s" % i) for i in P}
sage: c = {(i,j): LatexExpr("%s^%s" % (i, j)) for i, j in P.cover_relations()}

sage: H = P.hasse_diagram()

sage: [H.set_edge_label(v1, v2, c[(v1, v2)]) for v1, v2 in P.cover_relations()]
sage: H.relabel({v: e[v] for v in P})
sage: H.set_latex_options(format="dot2tex", edge_labels=True)
sage: view(H)

works.

[Henri Girard]

I didn't not understand your question, I am french.

But I use show(LatexExpr(r" c'est  \ en \ français") ) for the text

show(LatexExpr(r" \sqrt x^2") ) for maths and I obtain nice things

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