#14757: Poset's show() method applied to an antichain gives bad picture
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Reporter: darij | Owner:
sage-combinat
Type: defect | Status:
needs_review
Priority: major | Milestone: sage-5.11
Component: combinatorics | Resolution:
Keywords: combinat, poset | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Travis Scrimshaw, Darij Grinberg | Merged in:
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Travis Scrimshaw, Darij Grinberg', 'oldvalue': ''}):
* status: new => needs_review
* author: => Travis Scrimshaw, Darij Grinberg
Old description:
> {{{
> sage: Poset({1: [], 2: [], 3: []}).show()
> }}}
>
> It shows all three elements as the same point. I suspect this hails from
> the {{{plot}}} method on Poset, since a digraph with no edges shows fine.
>
> In the docstring of the {{{plot}}} method on Poset, there's also a typo:
> {{{empy}}}.
New description:
{{{
sage: Poset({1: [], 2: [], 3: []}).show()
}}}
It shows all three elements as the same point. I suspect this hails from
the {{{plot}}} method on Poset, since a digraph with no edges shows fine.
In the docstring of the {{{plot}}} method on Poset, there's also a typo:
{{{empy}}}.
* Apply: [attachment:trac_14757-acyclic_layout-dg.patch]
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14757#comment:2>
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