com.yworks.yfiles.layout.hierarchic

Interface ILayerer

All Known Implementing Classes:

AsIsLayerer, AspectRatioComponentLayerer, BFSLayerer, ConstraintIncrementalLayerer, GivenLayersLayerer, MultiComponentLayerer, TopologicalLayerer, WeightedLayerer

public interface ILayerer

This interface is used by classes capable of generating a layer assignment.

Layer assignment takes place during the first part of the hierarchic layout algorithms. During this phase, each node of the graph is assigned to a layer.

See Also:

HierarchicLayoutCore.setLayerer(ILayerer), HierarchicLayout.setFixedElementsLayerer(ILayerer), HierarchicLayout.setFromScratchLayerer(ILayerer)

Method Summary

Modifier and Type	Method and Description
void	assignLayers(LayoutGraph graph, ILayers layers, ILayoutDataProvider ldp) Assigns all nodes of the graph to layers and adds them to the ILayers instance.

Method Detail

assignLayers

void assignLayers(LayoutGraph graph,
                  ILayers layers,
                  ILayoutDataProvider ldp)

Assigns all nodes of the graph to layers and adds them to the ILayers instance.

In order to create new layers, factory method ILayers.insert(com.yworks.yfiles.layout.hierarchic.LayerType, int) has to be used.

Information about the nodes is provided by a ILayoutDataProvider. However, positional information (see Position and Layer) is not available during this phase.

Parameters:

graph - the input graph

layers - the ILayers instance that will be filled with the results of the calculation

ldp - the ILayoutDataProvider used for querying information about the nodes and edges

See Also:

ILayers.insert(com.yworks.yfiles.layout.hierarchic.LayerType, int), ILayer.add(com.yworks.yfiles.algorithms.Node)