roots property

Set<Object> get roots

Gets or sets the collection of root vertexes.

Initially this will be an empty Set.

If the #path is either TreeLayout.PathDestination|PathDestination or TreeLayout.PathSource|PathSource, this layout can easily determine all of the tree roots by searching the whole network. Otherwise, you should explicitly initialize this collection with one or more TreeVertexes.

Implementation

_i3.Set<_i2.Object> get roots => _i4.getProperty(
      this,
      'roots',
    );

set roots (Set<Object> value)

Implementation

set roots(_i3.Set<_i2.Object> value) {
  _i4.setProperty(
    this,
    'roots',
    value,
  );
}