Class RadiusGraphElementAccessor<V,​E>

  • All Implemented Interfaces:
    GraphElementAccessor<V,​E>

    public class RadiusGraphElementAccessor<V,​E>
    extends java.lang.Object
    implements GraphElementAccessor<V,​E>
    Simple implementation of PickSupport that returns the vertex or edge that is closest to the specified location. This implementation provides the same picking options that were available in previous versions of AbstractLayout.

    No element will be returned that is farther away than the specified maximum distance.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected double maxDistance  
    • Constructor Summary

      Constructors 
      Constructor Description
      RadiusGraphElementAccessor()
      Creates an instance with an effectively infinite default maximum distance.
      RadiusGraphElementAccessor​(double maxDistance)
      Creates an instance with the specified default maximum distance.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      E getEdge​(Layout<V,​E> layout, double x, double y)
      Gets the edge nearest to the location of the (x,y) location selected.
      E getEdge​(Layout<V,​E> layout, double x, double y, double maxDistance)
      Gets the edge nearest to the location of the (x,y) location selected, within a distance of maxDistance, Iterates through all visible edges and checks their distance from the click.
      V getVertex​(Layout<V,​E> layout, double x, double y)
      Gets the vertex nearest to the location of the (x,y) location selected, within a distance of maxDistance.
      V getVertex​(Layout<V,​E> layout, double x, double y, double maxDistance)
      Gets the vertex nearest to the location of the (x,y) location selected, within a distance of maxDistance.
      java.util.Collection<V> getVertices​(Layout<V,​E> layout, java.awt.Shape rectangle)
      Returns the vertices contained within rectangle relative to layout.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • maxDistance

        protected double maxDistance
    • Constructor Detail

      • RadiusGraphElementAccessor

        public RadiusGraphElementAccessor()
        Creates an instance with an effectively infinite default maximum distance.
      • RadiusGraphElementAccessor

        public RadiusGraphElementAccessor​(double maxDistance)
        Creates an instance with the specified default maximum distance.
    • Method Detail

      • getVertex

        public V getVertex​(Layout<V,​E> layout,
                           double x,
                           double y)
        Gets the vertex nearest to the location of the (x,y) location selected, within a distance of maxDistance. Iterates through all visible vertices and checks their distance from the click. Override this method to provde a more efficient implementation.
        Specified by:
        getVertex in interface GraphElementAccessor<V,​E>
      • getVertex

        public V getVertex​(Layout<V,​E> layout,
                           double x,
                           double y,
                           double maxDistance)
        Gets the vertex nearest to the location of the (x,y) location selected, within a distance of maxDistance. Iterates through all visible vertices and checks their distance from the click. Override this method to provde a more efficient implementation.
        Parameters:
        x -
        y -
        maxDistance - temporarily overrides member maxDistance
      • getEdge

        public E getEdge​(Layout<V,​E> layout,
                         double x,
                         double y)
        Gets the edge nearest to the location of the (x,y) location selected. Calls the longer form of the call.
        Specified by:
        getEdge in interface GraphElementAccessor<V,​E>
      • getEdge

        public E getEdge​(Layout<V,​E> layout,
                         double x,
                         double y,
                         double maxDistance)
        Gets the edge nearest to the location of the (x,y) location selected, within a distance of maxDistance, Iterates through all visible edges and checks their distance from the click. Override this method to provide a more efficient implementation.
        Parameters:
        x -
        y -
        maxDistance - temporarily overrides member maxDistance
        Returns:
        Edge closest to the click.