Alignment parameter

globalAlignment: "CENTER";

void setGlobalAlignment(int alignment);   

The valid values for the global alignment are:

All nodes have the same alignment unless the global alignment is set to MIXED . Only when the global alignment is set to MIXED can each node have an individual alignment style.

GraphLayout {
   globalAlignment: "MIXED";
}

#node1 {
  Alignment: "EAST";
}

void setAlignment(Object node, int alignment);    

int getAlignment(Object node);    

The valid values for alignment are:

Normally, the child nodes of a node are placed in a parallel arrangement with siblings as direct neighbors of each other. Tip-over alignments mean a sequential arrangement of the child nodes instead.

Tip-over alignment is useful when the tree has many leaves. With normal alignment, a tree with many leaves would result in the layout being wide. If the global alignment style is set to tip-over, the drawing is tall rather than wide. To balance the width and height of the drawing, you can set the global alignment to mixed.

layout.setGlobalAlignment(IlvTreeLayout.MIXED); 

layout.setAlignment(parent, IlvTreeLayout.TIP_OVER_EAST); 

Tip-over alignments can be specified explicitly for some or all of the nodes. Tree Layout offers layout modes that automatically determine when to tip over, giving a drawing that fits into a specified aspect ratio. These layout modes are described in Tip-over layout modes.

Tip-over-east alignment arranges the nodes on the east side of the center line that starts at the parent node. The tip-over-west alignment arranges the nodes on the west side of that line. There are also two variants that distribute the subtrees on both sides of that line. You can specify these variants at a parent node with a high number of child nodes by the following code:

layout.setAlignment(parent, IlvTreeLayout.TIP_OVER_EAST_WEST);

layout.setAlignment(parent, IlvTreeLayout.TIP_OVER_BOTH_SIDES);  

The following figures show the difference between Tip-over-east-west and tip-over-both-sides alignments.

Tip-over alignment works well with the orthogonal link style; see Link style (TL). The following figure shows the difference between tip over on one side and tip over on two sides. Tip-over alignments are specified for the red nodes; the blue nodes have center alignment.

Global alignment is valid for all nodes. The alignment specified at a node is valid for all child nodes of that node. Additionally, you can specify exceptions for certain nodes that are aligned differently than all other child nodes. This is useful for organization chart displays. In an organization chart that shows a management hierarchy, some of the people shown do not belong to the hierarchy. Instead, they are associated with a particular member of the hierarchy. An example could be a secretary associated with a manager of a company. In an organization chart tree, the node representing the secretary is normally displayed close to the node of the manager, but is not mixed with the child nodes that represent the normal workers who report to that manager.

#node1 {
  ChildAlignment: "EAST_NEIGHBOR";
}

void setChildAlignment(Object node, int alignment);

int getChildAlignment(Object node);

The following values are valid for child alignment:

In the following figures, the yellow nodes have child alignments EAST_NEIGHBOR or WEST_NEIGHBOR, and the red nodes have child alignments TIP_OVER_ASSOCIATE_EAST or TIP_OVER_ASSOCIATE_BOTH_SIDES. The green nodes have unspecified child alignments, that is, they are aligned with the global alignment style.