Interface Layout<V,E>

All Superinterfaces:
com.google.common.base.Function<V,Point2D>, Function<V,Point2D>
All Known Subinterfaces:
PersistentLayout<V,E>
All Known Implementing Classes:
AbstractLayout, AggregateLayout, BalloonLayout, CachingLayout, CircleLayout, DAGLayout, FastRenderingLayout, FRLayout, FRLayout2, ISOMLayout, KKLayout, LayoutDecorator, ObservableCachingLayout, PersistentLayoutImpl, RadialTreeLayout, SpringLayout, SpringLayout2, StaticLayout, TreeLayout
public interface Layout<V,E> extends com.google.common.base.Function<V,Point2D>
A generalized interface is a mechanism for returning (x,y) coordinates from vertices. In general, most of these methods are used to both control and get information from the layout algorithm.

  • Method Details

    • initialize

      void initialize()
      Initializes fields in the node that may not have been set during the constructor. Must be called before the iterations begin.

    • setInitializer

      void setInitializer(com.google.common.base.Function<V,Point2D> initializer)
      Parameters:
      initializer - a function that specifies initial locations for all vertices

    • setGraph

      void setGraph(Graph<V,E> graph)
      Parameters:
      graph - the graph that this algorithm is to operate on

    • getGraph

      Graph<V,E> getGraph()
      Returns:
      the graph that this Layout refers to

    • reset

      void reset()

    • setSize

      void setSize(Dimension d)
      Parameters:
      d - the space to use to lay out this graph

    • getSize

      Dimension getSize()
      Returns:
      the current size of the visualization's space

    • lock

      void lock(V v, boolean state)
      Locks or unlocks the specified vertex. Locking the vertex fixes it at its current position, so that it will not be affected by the layout algorithm. Unlocking it allows the layout algorithm to change the vertex's position.
      Parameters:
      v - the vertex to lock/unlock
      state - true to lock the vertex, false to unlock it

    • isLocked

      boolean isLocked(V v)
      Parameters:
      v - the vertex whose locked state is being queried
      Returns:
      true if the position of vertex v is locked

    • setLocation

      void setLocation(V v, Point2D location)
      Changes the layout coordinates of v to location.
      Parameters:
      v - the vertex whose location is to be specified
      location - the coordinates of the specified location