Opened 8 months ago
Closed 8 months ago
#30293 closed defect (fixed)
bug in lawrence_extension
Reported by:  ghLaisRast  Owned by:  

Priority:  major  Milestone:  sage9.2 
Component:  geometry  Keywords:  polytope, lawrence_extension 
Cc:  jipilab, ghkliem  Merged in:  
Authors:  Jonathan Kliem  Reviewers:  Laith Rastanawi 
Report Upstream:  N/A  Work issues:  
Branch:  539930e (Commits, GitHub, GitLab)  Commit:  539930e4d10bbd9050065b06203f60d6c5963ef1 
Dependencies:  Stopgaps: 
Description (last modified by )
The method lawrence_extension
of Polyhedron does not work when the point at which we do the lawrence_extension
has a different base_ring
than the Polyhedron:
sage: polytopes.cube().lawrence_extension([5/2,0,0])  TypeError Traceback (most recent call last) ... TypeError: no conversion of this rational to integer
The bug was introduced in #27926.
We fix this and add a method _test_lawrence
to systematically test the lawrence construction.
Change History (10)
comment:1 Changed 8 months ago by
comment:2 Changed 8 months ago by
 Branch set to public/30293
 Commit set to 1f00faa1c3f29641675d844cd899c680c367cf65
 Description modified (diff)
 Status changed from new to needs_review
New commits:
1f00faa  fix lawrence extension with base extension; add test method for lawrence construction

comment:3 Changed 8 months ago by
 Commit changed from 1f00faa1c3f29641675d844cd899c680c367cf65 to b831f3f744b0d9e9bf56d52e153f272ded3290b2
comment:4 Changed 8 months ago by
 Commit changed from b831f3f744b0d9e9bf56d52e153f272ded3290b2 to a96a977cb37b51c3cb6141772546b2515b48019d
Branch pushed to git repo; I updated commit sha1. New commits:
a96a977  run lawrence_polytope test for cdd and normaliz

comment:5 Changed 8 months ago by
 Reviewers set to Laith Rastanawi
 Status changed from needs_review to positive_review
It looks good to me.
comment:6 Changed 8 months ago by
Thank you.
comment:8 Changed 8 months ago by
This is the merge conflict, which has an obvious solution.
++<<<<<<< HEAD + sage: TestSuite(id).run(skip=["_test_is_combinatorially_isomorphic", "_test_pyramid"]) ++======= + sage: TestSuite(id).run(skip=["_test_is_combinatorially_isomorphic", "_test_lawrence"]) ++>>>>>>> 1f00faa1c3... fix lawrence extension with base extension; add test method for lawrence construction
comment:9 Changed 8 months ago by
 Branch changed from public/30293 to public/30293reb
 Commit changed from a96a977cb37b51c3cb6141772546b2515b48019d to 539930e4d10bbd9050065b06203f60d6c5963ef1
 Status changed from needs_work to positive_review
comment:10 Changed 8 months ago by
 Branch changed from public/30293reb to 539930e4d10bbd9050065b06203f60d6c5963ef1
 Resolution set to fixed
 Status changed from positive_review to closed
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I think this should to the job.
And this ticket shows again that we should test more methods.