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by i96
28 Apr 2015, 23:35
Forum: Helpdesk
Topic: VERTICES_IN_FACETS and orientation
Replies: 2
Views: 4022

Re: VERTICES_IN_FACETS and orientation

I presume you are talking about 3-dimensional polytopes? For those you can get a consistent orientation of the facets as follows:

Code: Select all

polytope > print pyramid(cube(2))->VIF_CYCLIC_NORMAL; 0 4 2 3 4 1 0 1 4 2 4 3 0 2 3 1
Yes, I have meant polyhedra. Thank you!
by i96
28 Apr 2015, 20:04
Forum: Helpdesk
Topic: VERTICES_IN_FACETS and orientation
Replies: 2
Views: 4022

VERTICES_IN_FACETS and orientation

If $c is a polytope, then $c->VERTICES_IN_FACETS contains the lists of vertices. Any list is sorted in ascending order. Since the polytope is oriented, for all the lists we also have another order (up to rotations), induced by this orientation. Is there a way to find it via polymake? Thanks a lot.
by i96
16 Apr 2015, 12:26
Forum: Helpdesk
Topic: Visualization tools and Mac
Replies: 6
Views: 7102

Re: Visualization tools and Mac

As a workaround you can fix the saved file: Prepend the load path of the five lines starting with "<script src=js/..." at the beginning of the saved file with

Code: Select all

/Applications/polymake.app/Contents/Resources/polymake/share/polymake/resources/threejs
Well, that does work, thank you!
by i96
16 Apr 2015, 12:15
Forum: Helpdesk
Topic: Visualization tools and Mac
Replies: 6
Views: 7102

Re: Visualization tools and Mac

Thank you. Does the visualization command show any arror message, or do you just get the polymake prompt back and no other window opens (potentially in the background)? It should show up as "java" in the Dock and Application Switcher. I am not sure about how to call such a situation, after...
by i96
16 Apr 2015, 11:54
Forum: Helpdesk
Topic: Visualization tools and Mac
Replies: 6
Views: 7102

Re: Visualization tools and Mac

Please try to use threejs($c->VISUAL); for browser/javascript based visualization. If this works, you can make it the default via Oh, I'm sorry, but I could not get this to work. I tried the following: polytope > threejs($c->VISUAL); polymake: ERROR: requires web browser; please specify the output ...
by i96
15 Apr 2015, 11:22
Forum: Helpdesk
Topic: Visualization tools and Mac
Replies: 6
Views: 7102

Visualization tools and Mac

I am trying to use polymake on a Mac (OS 10.10) and, unfortunately, I cannot apply any visualization tool. For example, the program just returns nothing after polytope > $c = cube(2); polytope > $c->VISUAL; Should I additionally install some packages (e.g. JavaView) for visualization tools to work? ...
by i96
15 Apr 2015, 10:07
Forum: Helpdesk
Topic: Visualization with different colours of vertices
Replies: 2
Views: 4043

Re: Visualization with different colours of vertices

That's great, thank you!
by i96
10 Apr 2015, 22:23
Forum: Helpdesk
Topic: Visualization with different colours of vertices
Replies: 2
Views: 4043

Visualization with different colours of vertices

I have a polytope with coloured vertices (thereby, the vector which coordinates describe the colours of corresponding vertices). I want to visualize this polytope as a Schlegel diagram with vertices coloured in these different colours.
Is it possible to do it in Polymake?

Thanks a lot.
by i96
03 Apr 2015, 18:43
Forum: Helpdesk
Topic: Automorphism group of polyhedron
Replies: 2
Views: 3871

Re: Automorphism group of polyhedron

I just added a paragraph in the tutorial section. Please check out the bottom of this page. Let me know if this is good enough for you.
This is totally good, thank you very much!
by i96
03 Apr 2015, 12:48
Forum: Helpdesk
Topic: Automorphism group of polyhedron
Replies: 2
Views: 3871

Automorphism group of polyhedron

I know that one can compute the generators of the automorphism group of a graph using polymake. Is there a way to find the automorphism group of a polytope?

Thanks a lot.

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