Radial is a layout algorithm that places nodes on virtual concentric circles
around a common center. This algorithm emphasizes tree structures within a
diagram.
General Tab
Center Allocation Policy
Determines how the innermost nodes are chosen, i.e., the nodes on the smallest
circle.
 Directed

A node without incoming edges will be chosen as center node.
If no such node exists, an arbitrary node is chosen.  Centrality

The center node will be chosen in such a way that a minimal number of
circles is required.  Weighted Centrality

The node that is contained in the most interconnected paths in the diagram
will be chosen as center node.  Selected Nodes

If there is a single selected node, that node is chosen as center node.
If there are several selected nodes, these nodes are placed on the innermost
circle.
If there are no selected nodes, an arbitrary node is chosen as center node.
Circle Assignment Strategy
Determines how nodes are assigned to (conceptual) circles.
 Distance From Center

With this strategy, nodes are assigned to circles in such a way that edges
either connect nodes on subsequent circles or nodes placed on the same
circle.  Hierarchic

With this strategy, nodes are assigned to circles in such a way that edges
never connect nodes placed on the same circle.
Minimal Circle Distance
Specifies the minimal distance between subsequent circles.
Minimal Node Distance
Specifies the minimal distance between adjacent nodes on the same circle.
Maximal Child Sector Size
Specifies the angular range of the sector that will be reserved for the
children of a node. In this context, the child of a node n
is
any node that is connected to n
and lies on a subsequent, larger
circle. If the input graph is not a tree, a node may be child of several
nodes. In this case it is assigned to the sector of one of this nodes.
Routing Style
 Straight
 Edge paths will be routed as a polyline with a certain number of bends.
 Arc

Edge paths will be routed with multiple bends to create the impression of
a smooth curve. Edge Smoothness controls the number of bends used.
Edge Smoothness
Determines how many bends are created for Routing Style
Arc
. The higher this value, the more bends are created.