displayNet -- displays a chordal network using Graphivz

• Usage:

  displayNet N

  displayNet (label, N)

  displayNet (dotFileName, jpgFileName, label, N)

• Inputs:
  • N, an instance of the type ChordalNet
  • label, a function (optional)
  • dotFileName, a string (optional)
  • jpgFileName, a string (optional)

i1 : R = QQ[a..e,MonomialOrder=>Lex];

i2 : I = ideal {a*b, b*c, c*d, a*e, d*e};

o2 : Ideal of R

i3 : N = chordalNet I;

i4 : chordalTria N;

i5 : topComponents N;

i6 : N

o6 = ChordalNet{ a => {a,  }       }
                 b => {b,  , b}
                 c => { , c, c,  }
                 d => {d,  , d}
                 e => { , e}

o6 : ChordalNet