com.yworks.yfiles.layout.hierarchic

Interface ISequencer

All Known Implementing Classes:

AsIsSequencer, DefaultLayerSequencer, GivenSequenceSequencer

public interface ISequencer

This interface is used by HierarchicLayoutCore to calculate the order of the nodes within each layer.

Implementations are used during the second phase of the hierarchic layout process and can be set using method FixedElementsSequencer or FromScratchSequencer).

See Also:

HierarchicLayoutCore.setSequencer(ISequencer), HierarchicLayout.setFixedElementsSequencer(ISequencer), HierarchicLayout.setFromScratchSequencer(ISequencer)

Method Summary

Modifier and Type	Method and Description
void	sequenceNodeLayers(LayoutGraph graph, ILayers layers, ILayoutDataProvider ldp, IItemFactory itemFactory) Calculates the sequence of the nodes within each layer.

Method Detail

sequenceNodeLayers

void sequenceNodeLayers(LayoutGraph graph,
                        ILayers layers,
                        ILayoutDataProvider ldp,
                        IItemFactory itemFactory)

Calculates the sequence of the nodes within each layer.

This method is called by HierarchicLayoutCore during the second phase and finally writes back the calculated sequence using the ILayer.setNodeOrder(com.yworks.yfiles.algorithms.YList) method.

Parameters:

graph - the input graph

layers - the given ILayers instance containing the elements in the layering

ldp - the ILayoutDataProvider implementation which provides access to the INodeData and IEdgeData instances

itemFactory - the IItemFactory used temporarily for modifying the graph instance