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Add .boundary_complex() method for simplicial polytopes #28248
Comments
Dependencies: #27974 |
Branch: u/jipilab/28248 |
Commit: |
Branch pushed to git repo; I updated commit sha1. New commits:
|
Author: Jean-Philippe Labbé |
comment:5
Since you only need the combinatorial data of the polytope, it would be much faster to use the |
comment:6
Replying to @LaisRast:
The difference will only be minor, once #27063 is done. Try it out Be aware that the incidence matrix is cashed. |
comment:7
Replying to @kliem:
Actually no. Running |
comment:8
I know that it will compute the incidence matrix anyway. Overall, I don't think your suggested change is going to make a big difference (yes it will be slightly faster). |
comment:9
Replying to @kliem:
For the For your suggested method:
My suggested change is still faster since it computes less. Anyway, since #27063 is not yet done, and since the class is |
comment:10
Replying to @LaisRast:
+1 I will replace to incidence_matrix. Once #27063 is done, the discussion may resume and check what is best, for now, |
Branch pushed to git repo; I updated commit sha1. New commits:
|
Reviewer: Laith Rastanawi |
comment:13
Beside the implementaion of |
comment:16
There's a small conflict due to the facets methods. I'll fix it. |
Changed branch from u/jipilab/28248 to u/jipilab/28248_v2 |
comment:19
Rebased on sage8.9.rc0 and fixed conflict. |
comment:20
Since the conflict is now resolved, I will put the ticket on positive review again. |
comment:21
moving milestone to 9.0 (after release of 8.9) |
Changed branch from u/jipilab/28248_v2 to |
Changed commit from |
The boundary of polytopes are nice and relatively well-behaved cell complexes.
When the polytope is simplicial, its boundary is a simplicial complex. This ticket implements a method to return that simplicial complex.
Depends on #27974
CC: @LaisRast @kliem @tscrim @jhpalmieri
Component: geometry
Keywords: polytopes, simplicial complex, days100
Author: Jean-Philippe Labbé
Branch:
7432567
Reviewer: Laith Rastanawi
Issue created by migration from https://trac.sagemath.org/ticket/28248
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