Re: [igraph] How to build any kind of lattice? (triangular, honeycomb...)

[Tamas Nepusz]

igraph_lattice() supports square grid graphs of any dimension and
their "circular" counterparts where the coordinates "wrap around". Hex
grids or triangular lattices are not supported directly - you need to
come up with the edge list of these lattices -- basically you create
an igraph_vector_t, fill it with the edge list and then call
igraph_create() to create the graph.
T.


On Mon, Jul 25, 2016 at 8:28 PM, Marisel Di Pietro Martínez
<address@hidden> wrote:
> A question from: http://stackoverflow.com/q/38572057/5556571?sem=2
>
> I'm trying to build a lattice[1] using igraph C. In the manual
> instructions[2] it says that igraph.lattice() can creat most kinds of
> lattices and here[3] it explains how to use that function but it seems
> like the only lattice I can create with that function is a square one,
> like a square grid... But how do I create a triangular lattice or any
> kind of lattice?
>
> Thanks in advance!
>
> [1] https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/2d-bravai
> s.svg/1024px-2d-bravais.svg.png
> [2] http://igraph.org/c/doc/igraph-Generators.html#igraph_lattice
> [3] http://cneurocvs.rmki.kfki.hu/igraphbook/igraphbook-structures.html
> #id2534549
>
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