#17928: opposite of cones and fans
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Reporter: chapoton | Owner:
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-6.6
Component: geometry | Resolution:
Keywords: cone, fan, | Merged in:
negative | Reviewers:
Authors: Frédéric Chapoton | Work issues:
Report Upstream: N/A | Commit:
Branch: u/chapoton/17928 | e1ec050f70db144c0c988b61a8ebca85e5fe8deb
Dependencies: | Stopgaps:
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Changes (by novoselt):
* status: needs_review => needs_work
Comment:
That would be nice, but:
1. The cone negation method is in a wrong class and constructs a wrong
object.
1. The cone and fan actual classes are very picky about the input - rays
have to be immutable, as described in the documentation. Either run a loop
to make them immutable or use `Cone` and `Fan` constructors that take care
of it, `check=False` would make sense, of course. (It may also make sense
to always set immutability in point collections instead of trying to be
super efficient, but that's for another ticket and would require some
manual work to eliminate current cycles.)
--
Ticket URL: <http://trac.sagemath.org/ticket/17928#comment:2>
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