#12544: Switch cones to `PointCollection`
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Reporter: novoselt | Owner: mhampton
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.0
Component: geometry | Resolution:
Keywords: toric | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Andrey Novoseltsev | Merged in:
Dependencies: #11599, #11634, #12541, #12361 | Stopgaps:
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Comment (by novoselt):
After some work on switching lattice polytopes also to point collections,
I've finally realized that it is not a good idea to have
`cone.rays().matrix()` return matrix with rays as columns, one of the main
reasons is that `matrix(list(cone.rays()))` gives the opposite
representation with rays as rows. The main motivation for the original
format was convenience to look at rays/points, but with a specialized
container we can easily transpose the matrix in repr/latex, so I have done
precisely that: now `matrix(cone.rays()) == cone.rays().matrix()` and
`cone.rays()[i] == cone.rays().matrix()[i]`.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12544#comment:15>
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