#10336: Cannot plot non-strictly convex cones
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Reporter: vbraun | Owner: novoselt
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.6.2
Component: algebraic geometry | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: add plotting |
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Changes (by novoselt):
* work_issues: fix faces and add plotting => add plotting
* milestone: sage-5.0 => sage-4.6.2
Comment:
Great! Done! Refreshed patch should deal fine with faces in all cases, all
old doctests pass and I added a couple for non-strictly convex cones -
there was an issue originally for "totally non-strictly conex" cones like
a plane, that's why there is `DiGraph(1)` in `Hasse_diagram`.
Regarding the plots. Let's take, e.g. a half-plane generated by vectors
(1,0), (1,1), (0,1), (-1,0). I propose that its plot will look exactly
like the plot of the fan with these generators except that two middle
vectors will be plotted as generators, but there will be no rays in their
direction extending to the boundary of the plot (labels still will be
places on the boundary out of colored regions). The label for the half-
plane itself will be randomly placed between two consecutive generators -
this way it will be inside and will not get crossed by one of the internal
generators.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10336#comment:5>
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