Graph Drawing and Analysis Library and Its Domain-Specific Language for Graphs’ Layout Specifications

Listing 12

JAVA code corresponding to the layout specification from Listing 11.

List<Pair<List<AestheticCriteria>, List<AestheticCriteria>>> orPairs =

    new  ArraList<Pair<List<AestheticCriteria>,

    List<AestheticCriteria>>>();

List<AestheticCriteria> positiveCriteria =

    new  ArrayList<AestheticCriteria>();

positiveCriteria.add(AestheticCriteria.MINIMAL_EDGE_CROESSES);

List<AestheticCriteria> negativeCriteria =

    new  ArrayList<AestheticCriteria>();

negativeCriteria.add(AestheticCriteria.SYMMETRIC);

negativeCriteria.add(AestheticCriteria.MINIMUM_ANGLES);

orPairs.add(new  Pair<List<AestheticCriteria>, List<AestheticCriteria>>(

          positiveCriteria, negativeCriteria));

LayoutAlgorithms algorithm = LayoutPicker.pickAlgorithm(graph, orPairs);

GraphLayoutPropertieslayoutProperties = DefaultGraphLayoutProperties.

    getDefaultLayoutProperties(algorithm, graph);

Layouter<GraphVertex, GraphEdge> layouter = new  Layouter<>(

    vertices, edges, algorithm, layoutProperties);

Drawing<GraphVertex, GraphEdge> drawing = layouter.layout();