Class RadiusPickSupport<V,E>

java.lang.Object
edu.uci.ics.jung.algorithms.layout.RadiusGraphElementAccessor<V,E>
edu.uci.ics.jung.visualization.picking.RadiusPickSupport<V,E>
All Implemented Interfaces:
GraphElementAccessor<V,E>

public class RadiusPickSupport<V,E> extends RadiusGraphElementAccessor<V,E> 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.
  • Field Summary

    Fields inherited from class edu.uci.ics.jung.algorithms.layout.RadiusGraphElementAccessor

    maxDistance
  • Constructor Summary

    Constructors
    Constructor
    Description
     
    RadiusPickSupport(double maxDistance)
    Creates an instance with the specified maximum distance.
  • Method Summary

    Modifier and Type
    Method
    Description
    getEdge(Layout<V,E> layout, double x, double y)
    Gets the edge nearest to the location of the (x,y) location selected.
    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.
    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.
    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.

    Methods inherited from class edu.uci.ics.jung.algorithms.layout.RadiusGraphElementAccessor

    getVertices

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface edu.uci.ics.jung.algorithms.layout.GraphElementAccessor

    getVertices
  • Constructor Details

    • RadiusPickSupport

      public RadiusPickSupport()
    • RadiusPickSupport

      public RadiusPickSupport(double maxDistance)
      Creates an instance with the specified maximum distance.
      Parameters:
      maxDistance - the farthest that a vertex can be from the selection point and still be 'picked'
  • Method Details

    • 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 provide a more efficient implementation.
      Specified by:
      getVertex in interface GraphElementAccessor<V,E>
      Overrides:
      getVertex in class RadiusGraphElementAccessor<V,E>
      Parameters:
      layout - the context in which the location is defined
      x - the x coordinate of the location
      y - the y coordinate of the location
      Returns:
      a vertex which is associated with the location (x,y) as given by layout
    • 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 provide a more efficient implementation.
      Overrides:
      getVertex in class RadiusGraphElementAccessor<V,E>
      Parameters:
      layout - the layout instance that records the positions for all vertices
      x - the x coordinate of the pick point
      y - the y coordinate of the pick point
      maxDistance - vertices whose from (x, y) is > this cannot be returned
      Returns:
      the vertex whose center is closest to the pick point (x, y)
    • 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>
      Overrides:
      getEdge in class RadiusGraphElementAccessor<V,E>
      Parameters:
      layout - the layout instance that records the positions for all vertices
      x - the x coordinate of the pick point
      y - the y coordinate of the pick point
      Returns:
      the vertex whose center is closest to the pick point (x, y)
    • 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.
      Overrides:
      getEdge in class RadiusGraphElementAccessor<V,E>
      Parameters:
      layout - the context in which the location is defined
      x - the x coordinate of the pick point
      y - the y coordinate of the pick point
      maxDistance - vertices whose from (x, y) is > this cannot be returned
      Returns:
      Edge closest to the click.