Flow direction

The flow direction parameter specifies the direction of the tree links. The compass icons show the compass directions in these layouts.
Picture
of tree layouts illustrating the flow direction parameter
Flow directions
If the flow direction is to the bottom, the root node is placed at the top. Each parent node is placed above its child nodes, which are normally arranged horizontally. This tip-over alignment is an exception.
If the flow direction is to the right, the root node is placed at the left. Each parent node is placed to the left of its child nodes, which are normally arranged vertically.
To specify the flow direction:
In CSS
Add to the GraphLayout section, for instance
flowDirection: "Left";
In Java
Use the method:
void setFlowDirection(int direction);   
The valid values for the flow direction are:
  • IlvDirection.Right (the default)
  • IlvDirection.Left
  • IlvDirection.Bottom
  • IlvDirection.Top
In CSS, you omit the prefix IlvDirection when specifying the value of the flow direction.