Provides essential classes and interfaces that constitute the infrastructure for automatic graph layout generation.

The concept of layout stages is defined and several generically usable implementations thereof are provided.
Classes for labeling, the label models, and port constraints are also included.

Related Documentation

See the yFiles FLEX Developer's Guide (Analysis and Layout Part) chapter on Automatic Graph Layout for a complete discussion of the yFiles algorithms for graph layout, edge routing, and label placement.

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	Interface	Description
	EdgeLabelLayout	This interface defines the properties of one edge label from the perspective of a labeling algorithm.
	EdgeLabelModel	This interface defines the properties of the model associated with an edge label layout.
	EdgeLayout	This interface encapsulates the layout information for an edge.
	GraphLayout	This interface defines the layout information of a graph.
	IntersectionCalculator	Interface implemented by classes that are responsible for calculating the intersection point between an Edge and the visual representation of its source or target node.
	LabelLayout	This interface defines the properties of one label from the perspective of a labeling algorithm.
	LabelLayoutFactory	Factory that provides methods to create, add and remove node/edge labels for com.yworks.yfiles.layout.LayoutGraph s.
	Layouter	This is a general interface for algorithms that perform a layout process on a given layout graph.
	LayoutStage	Interface for a layouter that forms a stage of a larger layout process.
	NodeLabelLayout	This interface defines the properties of one edge label from the perspective of a labeling algorithm.
	NodeLabelModel	This interface defines the properties of the model associated with a node label layout.
	NodeLayout	This interface describes the layout information for a node in the drawing of a graph.
	PartitionLayouter_InterEdgeRouter	Implementations of this interface are responsible for routing inter-edges.
	PartitionLayouter_PartitionFinder	Implementations of this interface are responsible to partition the input graph.
	PartitionLayouter_PartitionPlacer	Implementations of this interface are responsible for arranging the graph partitions.
	PortCandidateSet_CandidateMatcher	The interface that is used by com.yworks.yfiles.layout.PortCandidateSet to retrieve com.yworks.yfiles.layout.PortCandidate s from.
	PortCandidateSet_Entry	An interface that is returned by the find methods in com.yworks.yfiles.layout.PortCandidateSet_CandidateMatcher and the com.yworks.yfiles.layout.PortCandidateSet.entries method.
	ProfitModel	This is an interface for ranking LabelCandidates.

	Class	Description
	AbstractLayoutStage	Partial LayoutStage implementation that handles the management of the core layouter part.
	BendConverter	This layout stage replaces bends with dummy nodes, calls the core layout algorithm and recreates the bends.
	BufferedLayouter	A hull layouter that invokes another layout algorithm on a copy of its input graph.
	CanonicMultiStageLayouter	An abstract base class for layout algorithms that provides services to simplify and decompose the input graph before it is passed to the core layout routine itself.
	ComponentLayouter	This layout stage arranges the connected components of a graph.
	CompositeLayouter	A layouter that allows to express a layout stage as a chain of more basic layout stages.
	CompositeLayoutStage	A composite layout stage that allows to express a layout stage as a chain of more basic layout stages.
	CopiedLayoutGraph	This is a LayoutGraph implementation that serves as a copy of another LayoutGraph or as copy of a combined GraphInterface and and GraphLayout interface implementation.
	DefaultEdgeLayout	This class is a default implementation of the EdgeLayout interface.
	DefaultGraphLayout	This class is a default implementation of the simple GraphLayout interface.
	DefaultLayoutGraph	This class is a default implementation of the abstract class LayoutGraph.
	DefaultNodeLabelLayout	This class is the default implementation for the NodeLabelLayout.
	DefaultNodeLayout	This class is a default implementation of the NodeLayout interface.
	Direction	Class that represents directions.
	DiscreteEdgeLabelLayoutModel	An edge label model that allows placement of labels at some positions along an edge.
	DiscreteNodeLabelLayoutModel	A node label model that allows placement of labels at eight positions around a node and at nine positions inside the node.
	EdgeLabelCandidate	A candidate position for edge labels
	EdgeLabelLayoutImpl	This class is an default implementation of the EdgeLabelLayout interface.
	EdgeLabelOrientationSupport	Helper for layouter with integrated edge labeling to support orientation and mirroring.
	EdgeOppositeNodeLabelLayoutModel	A node label model that sets the labels at the opposite side of the outgoing edges of a node.
	EdgeReversalStage	A layout stage that can be used to (selectively) reverse edges in a graph while keeping the layout and label positions of the reversed edges as close to the pre-reversal layout and positions as possible.
	FixNodeLayoutStage	Layout stage that can be used to fix the position of either a single node or the alignment of the bounding box of several nodes (but not the positions of the individual nodes).
	FreeEdgeLabelLayoutModel	An edge label model that allows placement of labels at a fixed offset from the source intersection point of the node.
	FreeEdgeLabelLayoutModel_ModelParameter	The model parameters for the FreeEdgeLabelModel.
	FreeNodeLabelLayoutModel	A node label model that allows placement of labels at a fixed offset relative to the node's upper-left corner.
	FreeNodeLabelLayoutModel_ModelParameter	The model parameter that encodes a node label position within FreeNodeLabelModel.
	GraphLayoutLineWrapper	A layout stage that can be used to "line-wrap" or "column-wrap" a graph layout.
	IntersectionCalculatorKeys
	KeepStrongPortConstraintsStage	This layout stage ensures that layout algorithms that cannot handle port constraints keep the ports of edges with strong port constraints.
	LabelCandidate	Base class for candidate positions for labels.
	LabelLayoutConstants	This interface defines constants relevant for the automatic labeling process.
	LabelLayoutData	This class encapsulates layout data for a label.
	LabelLayoutDataRefinement	A layout stage that improves the placement of edge labels.
	LabelLayoutImpl	This class is a default implementation of the LabelLayout interface.
	LabelLayoutKeys	This interface provides label-specific keys that can be used to add data providers to a layout graph.
	LabelLayoutTranslator	Layout stage that automatically translates label layout information provided by the standard label layout classes com.yworks.yfiles.layout.EdgeLabelLayout and com.yworks.yfiles.layout.NodeLabelLayout to layout data of type com.yworks.yfiles.layout.LabelLayoutData that is accessible by the keys defined in class com.yworks.yfiles.layout.LabelLayoutKeys.
	LabelRanking	Implements the ranking for edge and node labels for Graph2D.
	LayouterKeys
	LayoutGraph	This class represents a drawing of a graph.
	LayoutGraphCopyFactory	An implementation of the copy factory interface used by com.yworks.yfiles.util.GraphCopier that can be used by implementations of com.yworks.yfiles.layout.LayoutGraph.
	LayoutGraphCopyFactory_HierarchicGraphCopyFactory	An implementation of the copy factory interface used by com.yworks.yfiles.util.GraphCopier that can be used by implementations of com.yworks.yfiles.layout.LayoutGraph that are hierarchically grouped using com.yworks.yfiles.layout.grouping.GroupingKeys.
	LayoutMultiplexer	This class delegates its layout calls to a core layout algorithm that is dynamically chosen at runtime by inspecting the nodes of the input graph.
	LayoutOrientation	Defines some layout orientation specifiers that are used to inform a layouter which general orientation a layout should express.
	LayoutTool	This class is a container for several helper and utility functions for the LayoutGraph class.
	MinNodeSizeStage	This layout stage enforces a given minimum width/height of the nodes of a graph during the layout process.
	NodeHalo	A NodeHalo object specifies a rectangular area around a specific node.
	NodeLabelCandidate	This class represents a candidate position for label associated to a node in a graph.
	NodeLabelLayoutImpl	This class is an default implementation of the NodeLabelLayout interface.
	NormalizingGraphElementOrderStage	Layout stage that can be used to normalize the order of the elements within a graph.
	OrientationLayouter	A layout stage that performs changes the orientation of the layout that another algorithm calculates.
	OrientationLayouter_Transformer	Class that provides a method for transferring a point to its final position.
	ParallelEdgeLayouter	A layout algorithm that routes parallel edges (edges that connect the same pair of nodes) of a graph.
	PartitionLayouter	This layout stage provides a framework for layouts that are based on a divide and conquer approach.
	PartitionLayouter_ChannelInterEdgeRouter	InterEdgeRouter implementation that routes inter-edges using com.yworks.yfiles.layout.router.ChannelEdgeRouter.
	PartitionLayouter_ComponentPartitionPlacer	PartitionPlacer implementation that uses com.yworks.yfiles.layout.ComponentLayouter to place the partitions.
	PartitionLayouter_EdgeBetweennessPartitionFinder	PartitionFinder implementation that uses com.yworks.yfiles.algo.Groups.edgeBetweennessClustering() as partition strategy.
	PartitionLayouter_OrthogonalInterEdgeRouter	InterEdgeRouter implementation that routes inter-edges using com.yworks.yfiles.layout.router.OrthogonalEdgeRouter.
	PartitionLayouter_PolylineInterEdgeRouter	InterEdgeRouter implementation that routes inter-edges using com.yworks.yfiles.layout.router.polyline.EdgeRouter.
	PortCalculator	This class implements a LayoutStage that can be used to adjust the final port assignments after a layout has been calculated.
	PortCandidate	This class represents a candidate for an edge's ports.
	PortCandidateAssignmentStage	LayoutStage that assigns edges to the ports specified by com.yworks.yfiles.layout.PortConstraint s or com.yworks.yfiles.layout.PortCandidate s after calling the core layout.
	PortCandidateSet	This class describes a set of possible com.yworks.yfiles.layout.PortCandidate s and their cardinality for a node-like entity.
	PortConstraint	This class represents a constraint for either a source or target port of an edge.
	PortConstraintConfigurator	Provides configuration services for the port constraints of a graph.
	PortConstraintEnforcementStage	This layout stage can be used to enforce that a layout algorithm will not change the relative coordinates of ports that are associated with a strong/fixed port constraint.
	PortConstraintKeys	This interface defines keys used to associate DataProviders (com.yworks.yfiles.base.DataProvider) that provide port constraints for all edges of the input graph.
	PreferredPlacementDescriptor	A descriptor that holds preferred placement information for automatic edge labeling.
	RemoveColinearBendsStage	This LayoutStage removes all collinear bends found in the graph.
	RotatedDiscreteEdgeLabelLayoutModel	An rotated edge label model that allows placement of rotated labels at some positions along an edge.
	RotatedSliderEdgeLabelLayoutModel	An edge label model that allows placement of labels at a set of continuous positions along both sides of an edge or directly on the edge path.
	SelfLoopLayouter	A layout algorithm that routes the self-loops (reflexive edges) of a graph.
	SequentialLayouter	This Layouter will take several com.yworks.yfiles.layout.Layouter implementations and will run these layout algorithms one after the other in the order in which they were added.
	SliderEdgeLabelLayoutModel	An edge label model that allows placement of labels at a set of continuous positions along both sides of an edge or directly on the edge path.
	SliderEdgeLabelLayoutModel_ModelParameter	Encodes the model parameters for the two slider edge label models specified by com.yworks.yfiles.layout.SliderEdgeLabelLayoutModel.CENTER_SLIDER and com.yworks.yfiles.layout.SliderEdgeLabelLayoutModel.SIDE_SLIDER.
	SubgraphLayouter	A layout stage that filters out all graph elements that are not part of a subgraph that is induced by the selected nodes of the input graph.
	Swimlanes	Helper class for swimlanes.
	Swimlanes_SwimlaneRepresentant	Class that internally represents a swim lane.