y.layout.hierarchic
Class PolylineDrawer

java.lang.Object
  y.layout.hierarchic.AbstractDrawer
      y.layout.hierarchic.PolylineDrawer

All Implemented Interfaces:

Drawer

public class PolylineDrawer
extends AbstractDrawer

This class is an implementation of the drawing phase of the HierarchicLayouter (i.e., the assignment of nodes' coordinates) which represents edges by polyline segments.

Field Summary

Fields inherited from class y.layout.hierarchic.AbstractDrawer

distanceToNextNode, dummyMap, edgeLengthKey, graph, minimalEdgeDistance, minimalLayerDistance, minimalMultiEdgeDistance, minimalNodeDistance

Fields inherited from interface y.layout.hierarchic.Drawer

NODE_BORDER_BOTTOM, NODE_BORDER_LEFT, NODE_BORDER_RIGHT, NODE_BORDER_TOP, NODE_DISTANCE

Constructor Summary

PolylineDrawer()
Creates an instance of PolylineDrawer with default settings.

Method Summary

protected void

assignCoordinates(NodeList[] layerLists, DataProvider layerID) Assigns the final coordinates to the objects of the graph.

Methods inherited from class y.layout.hierarchic.AbstractDrawer

assignCoordinates, assignYCoords, assignYCoords, dispose, getBottomBorder, getBottomHalf, getBottomY, getDistanceToNextNode, getFullHeight, getFullWidth, getLeftBorder, getLeftHalf, getLeftX, getMinimalEdgeDistance, getMinimalLayerDistance, getMinimalMultiEdgeDistance, getMinimalNodeDistance, getRightBorder, getRightHalf, getRightX, getTopBorder, getTopHalf, getTopY, initializeDistancesToNextNode, setDummyMap, setEdgeLengthKey, setMinimalEdgeDistance, setMinimalLayerDistance, setMinimalMultiEdgeDistance, setMinimalNodeDistance

Methods inherited from class java.lang.Object

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

Constructor Detail

PolylineDrawer

public PolylineDrawer()

Creates an instance of PolylineDrawer with default settings.

Method Detail

assignCoordinates

protected void assignCoordinates(NodeList[] layerLists,
                                 DataProvider layerID)

Description copied from class: AbstractDrawer

Assigns the final coordinates to the objects of the graph.

This method is called by HierarchicLayouter.doLayoutCore(LayoutGraph) after the nodes are distributed in layers. It has to be implemented to assign the final coordinates to the objects of the graph based on the user's specifications.

Specified by:

assignCoordinates in class AbstractDrawer

Parameters:

layerLists - an array of NodeLists each of which contains nodes that belong to the same layer

layerID - the DataProvider that returns the zero-based index of the layer to which each node belongs