You'll have to find some way to make the values from the map visible, e.g. by using them as EdgeLabels or invent some color scheme based on them.

Actually, this will also depend on the visualization backend's capabilities. I am not sure if JReality and JavaView support edge labels at all.

I suspect this is in the manual somewhere (apologies for blindness), but how do I switch between jReality and postscript for visualisation? Use functions jreality, javaview, postscript etc. as in postscript(cube(3)->VISUAL_GRAPH); jreality(cube(3)->VISUAL); If you always want to use the same use pr...

I hope the following example explains a little how to use incidence matrices. polytope > $M=new IncidenceMatrix([[0,1,2],[0,2,3],[0,1,19]]); polytope > print $M; {0 1 2} {0 2 3} {0 1 19} polytope > print $M->rows(); 3 polytope > print $M->cols(); 20 Now, the following gives an error. polytope > prin...

Right now there is no such function. However, there is a function to enumerate all lattice points in a rational polytope. polytope > print simplex(2,2)->LATTICE_POINTS; 1 0 0 1 0 1 1 0 2 1 1 0 1 1 1 1 2 0 And, there is a related function for the interior lattice points. polytope > print simplex(2,2)...

Here is one example: polytope > $m=mapping_polytope(simplex(2),cube(2)); polytope > print $m->N_VERTICES; 64 For more information on creating polytopes and such please look at the tutorials . Also useful is polymake's online help functionality. polytope > help "mapping_polytope"; functions...

Which compiler, which Perl version, and which operating system are you using?

I think, first of all we have to discuss the most probable and promising use cases of parallelization, and then carefully introduce the necessary support for it step by step. Probably it would be an interesting topic in the agenda of the upcoming workshop in March. I am quite sure that starting wit...

I now got it installed, thanks for your comments. Only the visualization doesn't yet work: sage: p.visual() polymake: WARNING: stored preference statements for label jreality are not in effect - probably excluded by auto-configuration sage: ERROR: ld.so: object '/home/stumpc5/progs/sage-4.7.1/local...

That's not a bug. It is a mere warning coming from within libreadline (or rather its perl wrapper). It has nothing to do with polymake (except for the fact that polymake is triggering this by calling libreadline via perl).

There is a sign error in the script. Please change line 28 of apps/polytope/scripts/gc_closure to my $obj=-(new Vector<Rational>(0 | $this_vector)); At some point we changed the orientation of the normal cones, but we forgot to modify this script accordingly. Sorry for the inconvenience. Will be fix...