y.view
Class NodeRealizerIntersectionCalculator

java.lang.Object
  y.util.DataProviderAdapter
      y.view.NodeRealizerIntersectionCalculator

All Implemented Interfaces:

DataProvider

public class NodeRealizerIntersectionCalculator
extends DataProviderAdapter
implements DataProvider

DataProvider implementation that provides for each edge a IntersectionCalculator instance that calculates an intersection point using the corresponding NodeRealizer's NodeRealizer.contains(double, double) and NodeRealizer.findIntersection(double, double, double, double, Point2D) implementations. Note that this DataProvider returns the same instance for every element queried for but reconfigures that instance to calculate results for the correct node/edge pair.

See Also:

IntersectionCalculator, IntersectionCalculator.SOURCE_INTERSECTION_CALCULATOR_DPKEY, IntersectionCalculator.TARGET_INTERSECTION_CALCULATOR_DPKEY

Constructor Summary

NodeRealizerIntersectionCalculator(Graph2D graph, boolean source)
Invokes NodeRealizerIntersectionCalculator(Graph2D, boolean, boolean) with true as the useCenter parameter.

NodeRealizerIntersectionCalculator(Graph2D graph, boolean useCenter, boolean source)
Creates a new NodeRealizerIntersectionCalculator that works on the given graph instance.

Method Summary

Object

get(Object dataHolder) Returns an instance of IntersectionCalculator that is configured to calculate the intersection between the given edge (dataHolder) and its adjacent source or target node, depending on the source flag provided during the construction of this instance.

Methods inherited from class y.util.DataProviderAdapter

defined, getBool, getDouble, getInt

Methods inherited from class java.lang.Object

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

Methods inherited from interface y.base.DataProvider

getBool, getDouble, getInt

Constructor Detail

NodeRealizerIntersectionCalculator

public NodeRealizerIntersectionCalculator(Graph2D graph,
                                          boolean source)

Invokes NodeRealizerIntersectionCalculator(Graph2D, boolean, boolean) with true as the useCenter parameter. Creates a new NodeRealizerIntersectionCalculator that works on the given graph instance. Depending on the source argument, it will calculate source node/edge intersections or target node/edge intersections.

Parameters:

graph - the graph to operate on

source - iff true the intersection will be calculated with the source node of the given edge.

NodeRealizerIntersectionCalculator

public NodeRealizerIntersectionCalculator(Graph2D graph,
                                          boolean useCenter,
                                          boolean source)

Creates a new NodeRealizerIntersectionCalculator that works on the given graph instance. Depending on the source argument, it will calculate source node/edge intersections or target node/edge intersections.

Parameters:

graph - the graph to operate on

useCenter - determines whether the algorithm should try to find the intersection point with the segment in the direction of the center of the node, if no other intersection point was found

source - iff true the intersection will be calculated with the source node of the given edge.

Method Detail

get

public Object get(Object dataHolder)

Returns an instance of IntersectionCalculator that is configured to calculate the intersection between the given edge (dataHolder) and its adjacent source or target node, depending on the source flag provided during the construction of this instance.

Specified by:

get in interface DataProvider

Overrides:

get in class DataProviderAdapter

Parameters:

dataHolder - the edge for which the intersection will be calculated

Returns:

an IntersectionCalculator instance