public class HierarchicalBCEngine extends java.lang.Object implements GraphConstants, LayoutEngine
There have been a few modifications made, however. The crossings function is changed as it was non-linear in time complexity. Furthermore, we don't have any interconnection matrices for each level, instead we just have one big interconnection matrix for the whole graph and a int[][] array which stores the vertices present in each level.
DIRECTED, DOUBLE, NORMAL, PLURAL_DUMMY, REVERSED, SINGULAR_DUMMY
Constructor and Description |
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HierarchicalBCEngine()
SimpleConstructor
If we want to instantiate the class first, and if information for
nodes and edges is not available.
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HierarchicalBCEngine(FastVector nodes,
FastVector edges,
int nodeWidth,
int nodeHeight)
Constructor - takes in FastVectors of nodes and edges, and the initial
width and height of a node
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HierarchicalBCEngine(FastVector nodes,
FastVector edges,
int nodeWidth,
int nodeHeight,
boolean edgeConcentration)
Constructor - takes in FastVectors of nodes and edges, the initial width
and height of a node, and a boolean value to indicate if the edges
should be concentrated.
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Modifier and Type | Method and Description |
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void |
addLayoutCompleteEventListener(LayoutCompleteEventListener l)
Method to add a LayoutCompleteEventListener
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void |
fireLayoutCompleteEvent(LayoutCompleteEvent e)
Fires a LayoutCompleteEvent.
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javax.swing.JPanel |
getControlPanel()
This method returns a handle to the extra
controls panel, so that the visualizing
class can add it to some of it's own
gui panel.
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FastVector |
getNodes()
give access to set of graph nodes
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javax.swing.JProgressBar |
getProgressBar()
Returns a handle to the progressBar
of this LayoutEngine.
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void |
layoutGraph()
This method does a complete layout of the graph which includes
removing cycles, assigning levels to nodes, reducing edge crossings
and laying out the vertices horizontally for better visibility.
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void |
phaseIID(int lindex,
int[][] levels)
See Sugiyama et al.
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void |
phaseIIU(int lindex,
int[][] levels)
See Sugiyama et al.
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void |
phaseIU(int lindex,
int[][] levels)
See Sugiyama et al.
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void |
removeLayoutCompleteEventListener(LayoutCompleteEventListener e)
Method to remove a LayoutCompleteEventListener.
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void |
setNodesEdges(FastVector nodes,
FastVector edges)
Sets the nodes and edges for this LayoutEngine.
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void |
setNodeSize(int nodeWidth,
int nodeHeight)
Sets the size of a node.
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public HierarchicalBCEngine(FastVector nodes, FastVector edges, int nodeWidth, int nodeHeight)
public HierarchicalBCEngine(FastVector nodes, FastVector edges, int nodeWidth, int nodeHeight, boolean edgeConcentration)
nodes
- - FastVector containing all the nodesedges
- - FastVector containing all the edgesnodeWidth
- - A node's allowed widthnodeHeight
- - A node's allowed heightedgeConcentration
- - True: if want to concentrate edges,
False: otherwisepublic HierarchicalBCEngine()
public FastVector getNodes()
getNodes
in interface LayoutEngine
public javax.swing.JPanel getControlPanel()
getControlPanel
in interface LayoutEngine
public javax.swing.JProgressBar getProgressBar()
getProgressBar
in interface LayoutEngine
public void setNodesEdges(FastVector nodes, FastVector edges)
setNodesEdges
in interface LayoutEngine
nodes
- - FastVector containing all the nodesedges
- - FastVector containing all the edgespublic void setNodeSize(int nodeWidth, int nodeHeight)
setNodeSize
in interface LayoutEngine
nodeWidth
- - A node's allowed widthnodeHeight
- - A node's allowed heightpublic void addLayoutCompleteEventListener(LayoutCompleteEventListener l)
addLayoutCompleteEventListener
in interface LayoutEngine
l
- - Listener to receive the LayoutCompleteEvent by this
class.public void removeLayoutCompleteEventListener(LayoutCompleteEventListener e)
removeLayoutCompleteEventListener
in interface LayoutEngine
e
- - The LayoutCompleteEventListener to remove.public void fireLayoutCompleteEvent(LayoutCompleteEvent e)
fireLayoutCompleteEvent
in interface LayoutEngine
e
- - The LayoutCompleteEvent to firepublic void layoutGraph()
The layout is performed in a separate thread and the progress bar of the class is updated for each of the steps as the process continues.
layoutGraph
in interface LayoutEngine
public void phaseIU(int lindex, int[][] levels)
public void phaseIID(int lindex, int[][] levels)
public void phaseIIU(int lindex, int[][] levels)