Hi
just to point out an oddity.
I have to reduce the precision of the vertex location in order to print the tetrahedron.
if I comment the line in the code below : tetrahedronLoc=roundMap(tetrahedronLoc,precis=5) I got an error.
https://sagecell.sagemath.org/?q=rossmq (sorry but I forgot how to put code in a post !)
Rationalizing tetraVertices by QQ solves the problem. I think it is a bug in Polyhedron.
tetrahedron=[4, 5, 11, 14]
tetrahedronLoc={4: (-0.6220125751978625, -0.39433530191701094, 2.4390024379557733),
5: (0.7440142276738531, -0.5773554766481435, 2.122015514128518),
11: (0.244011652475991, -0.14434077856515382, 2.8720179520842914),
14: (-0.6220027261487862, -1.2603675416886693, 2.9389962970029573)}
tetraHedronColor='black'
tetraVertices=[tetrahedronLoc.get(v) for v in tetrahedron]
tetraVertices = [[QQ(c) for c in p] for p in tetraVertices]
plt=Graphics()
plt+=Polyhedron(tetraVertices).plot(color=tetraHedronColor,opacity=0.75)
show(plt)
Asked: 2026-04-06 09:33:30 +0200
Seen: 40 times
Last updated: 1 hour ago
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When writing the post, I didn't see the '101' tags to position to enclose the code !!. (sorry)
Bug in
Polyhedron.