info.aduna.linkmap.layout
Class LinkGraphLayoutManager

java.lang.Object
  info.aduna.linkmap.layout.GraphLayoutManager
      info.aduna.linkmap.layout.SubgraphRelocationManager
          info.aduna.linkmap.layout.LinkGraphLayoutManager

All Implemented Interfaces:

Runnable

public class LinkGraphLayoutManager
extends SubgraphRelocationManager

LinkGraphLayoutManager gives a layout to a LinkGraph based on the spring embedder and the subgraph relocation algorithms. It uses a LinkSubgraphLayoutManager for calculating the layout of the connected subgraphs of the total graph.

Field Summary

static long

DEFAULT_RANDOM_SEED The default seed used for randomizing the layout.

Fields inherited from class info.aduna.linkmap.layout.SubgraphRelocationManager

DEFAULT_BASELINE_INTERVAL, DEFAULT_SUBGRAPH_PADDING

Constructor Summary

LinkGraphLayoutManager()
Create a new LinkGraphLayoutManager that will use a LinkSubgraphLayoutManager for calculating the layouts of the individual subgraphs.

Method Summary

long	getRandomSeed()
void	randomizeCoordinates() Gives the whole graph a random layout using the indicates seed for the random number generator.
void	resetAttributes() Uses the LinkSubgraphLayoutManager for resetting the layout attributes inside the whole graph.
void	setGraph(Graph graph) Overrides GraphLayoutManager and additionally randomizes the coordinates of the vertices, using the LinkSubgraphLayoutManager, when this is indeed a new Graph.
void	setRandomSeed(long seed)

Methods inherited from class info.aduna.linkmap.layout.SubgraphRelocationManager

addSubgraphRelocationListener, createLayoutConverter, doLayout, getBaselineInterval, getGraphRenderer, getSubgraphLayoutManager, getSubgraphPadding, initialize, removeSubgraphRelocationListener, setBaselineInterval, setGraphRenderer, setSubgraphLayoutManager, setSubgraphPadding, stop

Methods inherited from class info.aduna.linkmap.layout.GraphLayoutManager

getGraph, run

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_RANDOM_SEED

public static final long DEFAULT_RANDOM_SEED

The default seed used for randomizing the layout.

See Also:

Constant Field Values

Constructor Detail

LinkGraphLayoutManager

public LinkGraphLayoutManager()

Create a new LinkGraphLayoutManager that will use a LinkSubgraphLayoutManager for calculating the layouts of the individual subgraphs.

Method Detail

setGraph

public void setGraph(Graph graph)

Overrides GraphLayoutManager and additionally randomizes the coordinates of the vertices, using the LinkSubgraphLayoutManager, when this is indeed a new Graph.

Overrides:

setGraph in class GraphLayoutManager

setRandomSeed

public void setRandomSeed(long seed)

getRandomSeed

public long getRandomSeed()

randomizeCoordinates

public void randomizeCoordinates()

Gives the whole graph a random layout using the indicates seed for the random number generator. Note that, before a new doLayout is issued, resetAttributes propably also needs to be invoked.

resetAttributes

public void resetAttributes()

Uses the LinkSubgraphLayoutManager for resetting the layout attributes inside the whole graph. Together with the randomization of the coordinates, as done in randomizeCoordinates, this ensures that a subsequent invocation of the layout algorithm will yield the same result.