Specifies custom data for the CompactDiskLayout.
Examples
const layoutData = new CompactDiskLayoutData({
//define a halo for a specific known node, other nodes get no halo
nodeMargins: (node) =>
node == nodeWithHalo ? new Insets(20, 10, 20, 10) : null,
})
graphComponent.graph.applyLayout(new CompactDiskLayout(), layoutData)Type Parameters
- TNode
- TEdge
- TNodeLabel
- TEdgeLabel
Type Details
- yFiles module
- algorithms
Constructors
Parameters
A map of options to pass to the method.
- nodeMargins - ItemMapping<TNode,Insets>
- The mapping from nodes to their margins. This option either sets the value directly or recursively sets properties to the instance of the nodeMargins property on the created object.
- nodeTypes - ItemMapping<TNode,any>
- The mapping from nodes to an object defining the node type, which influences the ordering of child nodes such that those with the same type are preferably placed next to each other. This option either sets the value directly or recursively sets properties to the instance of the nodeTypes property on the created object.
- ports - BasicPortData<TNode,TEdge,TNodeLabel,TEdgeLabel>
- The sub-data that provides a way of influencing the placement of the ports. This option either sets the value directly or recursively sets properties to the instance of the ports property on the created object.
Properties
Gets or sets the mapping from nodes to their margins.
Remarks
Examples
The easiest option is to reserve the same space around all nodes, by setting a constant value:
layoutData.nodeMargins = new Insets(20)Handling only certain nodes differently can be done easily by using the mapper property:
// node1 only reserves space above and below
layoutData.nodeMargins.mapper.set(node1, new Insets(20, 10, 0, 0))
// node2 has space all around
layoutData.nodeMargins.mapper.set(node2, new Insets(25))
// all other nodes don't get extra spaceIn cases where the nodeMargins for each node can be determined by looking at the node itself it's often easier to just set a mapperFunction instead of preparing a mapper:
// Retrieve the space around the node from its tag property
layoutData.nodeMargins = (node: INode): Insets =>
new Insets(parseFloat(node.tag))See Also
Gets or sets the mapping from nodes to an object defining the node type, which influences the ordering of child nodes such that those with the same type are preferably placed next to each other.
Remarks
See Also
Sample Graphs
Gets or sets the sub-data that provides a way of influencing the placement of the ports.
Remarks
The port placement can be influenced by specifying EdgePortCandidates for the source and target of an edge, as well as by specifying NodePortCandidates at the nodes.
In addition, it is possible to specify that ports should be grouped at the source or target.
If both EdgePortCandidates and NodePortCandidates are specified, the layout algorithm tries to match them. An edge port candidate matches a node port candidate if
- Their matchingIds are equal or one type is
null, - They belong to a common side or one side is ANY, and
- If both candidates are fixed, they describe the same positions.
The position of a port candidate is defined by offset or the actual offset of the edge endpoint for fixed-from-sketch candidates. When there is no match, the port candidate with the lowest costs specified for the edge is chosen.
Methods
combineWith
(data: LayoutData<TNode,TEdge,TNodeLabel,TEdgeLabel>…) : LayoutData<TNode,TEdge,TNodeLabel,TEdgeLabel>Combines this instance with the given layout data.
Remarks
Parameters
A map of options to pass to the method.
- data - LayoutData<TNode,TEdge,TNodeLabel,TEdgeLabel>
- The LayoutData<TNode,TEdge,TNodeLabel,TEdgeLabel> to combine this instance with.
Returns
- ↪LayoutData<TNode,TEdge,TNodeLabel,TEdgeLabel>
- The combined layout data.