lattica.eps (source link in file list below) : Harmonic Lattice Diagram, Advanced -- shows the harmonic structure of a scale by links for intervals that you specify (so can handle triangular lattices, for example), with the option of showing each link in a specified line style; also can specify names for notes in scale.

This example shows 7-limit 12-tone scale, tetrahedral lattice.

Variation

Here is another example of the use of this file: 

lattica2.eps : another Harmonic Lattice Diagram, Advanced -- this example shows 5-limit 12-tone Duodene, triangular lattice, using default link style, with basic labels for the key of C.