Class DirectedTreeLayoutManager

The DirectedTreeLayoutManager class, a specialization of the GraphLayoutManager base, implements a layout manager for arranging nodes in a tree-like structure. The DirectedTreeLayoutManager can be applied to any diagram that is composed as a directed tree graph with a unique root and child nodes. The layout manager lets you orient the tree in just about any direction around the root, and can be used for creating arrangements such as top-to-bottom vertical trees, bottom-to-top vertical trees, right-to-left horizontal trees, left-to-right horizontal trees, angular trees etc., GraphLayoutManager RadialTreeLayoutManager

Inheritance

System.Object

LayoutManager

GraphLayoutManager

DirectedTreeLayoutManager

OrgChartLayoutManager

RadialTreeLayoutManager

SubgraphTreeLayoutManager

Inherited Members

GraphLayoutManager.HorizontalSpacing

GraphLayoutManager.ImprovePerformance

GraphLayoutManager.m_fXBorder

GraphLayoutManager.m_fYBorder

GraphLayoutManager.m_fYHighest

GraphLayoutManager.OnPreferredLayout(PreferredLayoutEventArgs)

GraphLayoutManager.PassedNodes

GraphLayoutManager.PreferredLayout

GraphLayoutManager.SelectedNode

GraphLayoutManager.UpdateLayout(NodeCollection)

GraphLayoutManager.UpdateLayout(Object)

GraphLayoutManager.VerticalSpacing

LayoutManager.AutoLayout

LayoutManager.autoLayoutFlag

LayoutManager.LayoutUpdated

LayoutManager.LeftMargin

LayoutManager.mdl

LayoutManager.Model

LayoutManager.Nodes

LayoutManager.OnConnectionsChanged(CollectionExEventArgs)

LayoutManager.OnLayoutUpdated(EventArgs)

LayoutManager.OnNodeCollectionChanged(CollectionExEventArgs)

LayoutManager.OnPropertyChanged(PropertyChangedEventArgs)

LayoutManager.TopMargin

LayoutManager.UpdatingLayout

Namespace: Syncfusion.Windows.Forms.Diagram

Assembly: Syncfusion.Diagram.Base.dll

Syntax

public class DirectedTreeLayoutManager : GraphLayoutManager

Constructors

DirectedTreeLayoutManager()

Initializes a new instance of the DirectedTreeLayoutManager class.

Declaration

public DirectedTreeLayoutManager()

DirectedTreeLayoutManager(Model, Single, Single, Single)

Initializes a new instance of the DirectedTreeLayoutManager class.

Declaration

public DirectedTreeLayoutManager(Model model, float fRotationDegree, float fVerticalOffset, float fHorizontalOffset)

Parameters

Type	Name	Description
Model	model	The diagram Model.
System.Single	fRotationDegree	The root to child orientation to be used for the tree.
System.Single	fVerticalOffset	Specifies the vertical distance between adjacent nodes.
System.Single	fHorizontalOffset	Specifies the horizontal distance between adjacent nodes.

DirectedTreeLayoutManager(Model, Single, Single, Single, LayoutType, Int32)

Initializes a new instance of the DirectedTreeLayoutManager class.

Declaration

public DirectedTreeLayoutManager(Model model, float fRotationDegree, float fVerticalOffset, float fHorizontalOffset, LayoutType layoutType, int nTreeLevel)

Parameters

Type	Name	Description
Model	model	The diagram Model.
System.Single	fRotationDegree	The root to child orientation to be used for the tree.
System.Single	fVerticalOffset	Specifies the vertical distance between adjacent nodes.
System.Single	fHorizontalOffset	Specifies the horizontal distance between adjacent nodes.
LayoutType	layoutType	Specifies the layout type of tree
System.Int32	nTreeLevel	Specifies the tree level upto which the default layout has to be maintained

DirectedTreeLayoutManager(Model, Single, Single, Single, LayoutType, Int32, Boolean)

Initializes a new instance of the DirectedTreeLayoutManager class.

Declaration

public DirectedTreeLayoutManager(Model model, float fRotationDegree, float fVerticalOffset, float fHorizontalOffset, LayoutType layoutType, int nTreeLevel, bool bSingleChildLayout)

Parameters

Type	Name	Description
Model	model	The diagram Model.
System.Single	fRotationDegree	The root to child orientation to be used for the tree.
System.Single	fVerticalOffset	Specifies the vertical distance between adjacent nodes.
System.Single	fHorizontalOffset	Specifies the horizontal distance between adjacent nodes.
LayoutType	layoutType	Specifies the layout type of tree
System.Int32	nTreeLevel	Specifies the tree level upto which the default layout has to be maintained
System.Boolean	bSingleChildLayout	Determines whether the layout needs to done on single child node

Fields

m_LayoutType

Declaration

protected LayoutType m_LayoutType

Field Value

Type
LayoutType

Properties

RotationAngle

Gets or sets the rotation angle for graph.

Declaration

public float RotationAngle { get; set; }

Property Value

Type	Description
System.Single	The rotation angle.

Methods

ApplyRotation(Graph)

Rotates Graph.

Declaration

protected void ApplyRotation(Graph graphSorting)

Parameters

Type	Name	Description
Graph	graphSorting	The graph to rotate.

CalcRankPositionVerticalLayout(Int32, Graph)

Calculates the rank position vertical layout.

Declaration

protected float CalcRankPositionVerticalLayout(int nRank, Graph graph)

Parameters

Type	Name	Description
System.Int32	nRank	The rank.
Graph	graph	The graph.

Returns

Type	Description
System.Single	The value.

DoGraphLayout()

Applies the directed tree layout strategy on the diagram.

Declaration

protected override void DoGraphLayout()

Overrides

GraphLayoutManager.DoGraphLayout()

DoInitXLayout(Graph)

Does the init X layout.

Declaration

protected void DoInitXLayout(Graph graphToSort)

Parameters

Type	Name	Description
Graph	graphToSort	The graph to sort.

ExtractSubGraph(GraphNode, Int32, ref Graph)

Extracts subGraph from specified node.

Declaration

protected void ExtractSubGraph(GraphNode dtgnFrom, int nRank, ref Graph graphToFill)

Parameters

Type	Name	Description
GraphNode	dtgnFrom	new graph TopNode.
System.Int32	nRank	current Rank.
Graph	graphToFill	Graph to extract to.

GetSubGraphDimension(Int32, Int32, Dimension, Graph)

Gets the sub graph dimension.

Declaration

protected float GetSubGraphDimension(int nFromRank, int nToRank, Dimension dimension, Graph graph)

Parameters

Type	Name	Description
System.Int32	nFromRank	The rank from.
System.Int32	nToRank	The rank to.
Dimension	dimension	The dimension.
Graph	graph	The graph.

Returns

Type	Description
System.Single	The value.

MakeGraphLayout(Graph)

Applies Layout Manager logic to given graph.

Declaration

protected void MakeGraphLayout(Graph graphSorting)

Parameters

Type	Name	Description
Graph	graphSorting	Affecting graph.

MakeLayout(Graph)

Performs the graph layout.

Declaration

protected void MakeLayout(Graph graphSorting)

Parameters

Type	Name	Description
Graph	graphSorting	The graph.

MakeLayout(ArrayList, Int32, Graph)

Makes the layout.

Declaration

protected virtual void MakeLayout(ArrayList lstRank, int nRank, Graph graph)

Parameters

Type	Name	Description
System.Collections.ArrayList	lstRank	The last rank.
System.Int32	nRank	The rank.
Graph	graph	The graph.

NormalizeNodes(ArrayList, Int32)

Normalizes the nodes.

Declaration

protected virtual void NormalizeNodes(ArrayList nodes, int nRank)

Parameters

Type	Name	Description
System.Collections.ArrayList	nodes	The nodes.
System.Int32	nRank	The n rank.

WaterFallNodePosition(GraphNode)

Method that sets the location of nodes in Waterfall layout.

Declaration

protected void WaterFallNodePosition(GraphNode currentNode)

Parameters

Type	Name	Description
GraphNode	currentNode	The node whose child has to be positioned,

XCoordRoutine(IGBounds, ref Single)

X coordinate routine.

Declaration

protected virtual void XCoordRoutine(IGBounds gnBounds, ref float fX)

Parameters

Type	Name	Description
IGBounds	gnBounds	The bounds.
System.Single	fX	The value.

YCoordinateRoutine(ArrayList, Single)

Y coordinate routine.

Declaration

protected virtual void YCoordinateRoutine(ArrayList lstRank, float fYRank)

Parameters

Type	Name	Description
System.Collections.ArrayList	lstRank	The last rank.
System.Single	fYRank	The rank.