CollectionAPI

• webVis API Reference
• CollectionAPI

Interface CollectionAPI

Collections store groups of nodes. They can be created empty or from a list of nodes. There is also the way to create a collection by searching nodes matching a given property.

Hierarchy

• CollectionAPI
  • ContextAPI

Index

Methods

addToCollection createCollection getCollection getCollectionElements getCollectionNodeCount removeCollection removeFromCollection searchByVolume

Methods

addToCollection

• addToCollection(collectionID: number, nodeID: number, recursive?: boolean): void

• Adds the node given by nodeID to the collection with id collectionID. If recursive is true, the descendants of the node are also added. Returns the number of nodes in the collection.

  Parameters

  • collectionID: number

    Specifies to which collection the node should be added

  • nodeID: number

    Specifies which node should be added to the collection

  • Optional recursive: boolean

    Specifies if the children of the node should also be added to the collection

  Returns void

createCollection

• createCollection(nodeIDlist?: number[]): number

• Returns the id of a new collection containing the nodes from the given list.

  Parameters

  • Optional nodeIDlist: number[]

    An array of node id's from which a new node collection should be created.

  Returns number

  The id of the newly created node collection.

• createCollection(): number

• Creates a new, empty collection and returns its id.

  Returns number

  The id of the newly created collection.

getCollection

• getCollection(collectionID: number): ICollection

• Parameters

  • collectionID: number

  Returns ICollection

getCollectionElements

• getCollectionElements(collectionID: number): Promise<number[]>

• Returns an array containing the ids of the nodes in the collection. Modifying the returned array results in undefined behavior.

  READONLY

  Parameters

  • collectionID: number

    The id of the node collection

  Returns Promise<number[]>

  Array of node IDs representing the node collection

getCollectionNodeCount

• getCollectionNodeCount(collectionID: number): Promise<number>

• Returns the number of elements inside a collection.

  Parameters

  • collectionID: number

    The id of the collection

  Returns Promise<number>

  Number of elements in a collection.

removeCollection

• removeCollection(collectionID: number): void

• Parameters

  • collectionID: number

  Returns void

removeFromCollection

• removeFromCollection(collectionID: number, nodeID: number, recursive?: boolean): void

• Removes a node given by nodeID from the collection with id collectionID. If recursive is true, the descendants of the node are also removed.

  Parameters

  • collectionID: number

    Specifies from which collection the node should be removed

  • nodeID: number

    Specifies which node should be removed from the collection

  • Optional recursive: boolean

    Specifies whether the children of the node should be removed from the collection too

  Returns void

searchByVolume

• searchByVolume(selectionBox: BoxVolume, includeOverlappingNodes: boolean, rootNodeID?: number): Promise<number>

• Finds nodes within the given BoxVolume (created using the createBoxVolume() function). If includeOverlappingNodes is false, only nodes fully contained by the box volume are returned. The rootNodeID specifies the node from which the subtree is searched.

  Parameters

  • selectionBox: BoxVolume

    3-dimensional search volume.

  • includeOverlappingNodes: boolean

    Specifies whether the search result contains only those nodes which lie entirely in the search volume or if overlapping nodes are also included.

  • Optional rootNodeID: number

    Restricts the search to a subtree of a node with the given id.

  Returns Promise<number>

  A the id of the created collection of nodes that are fitting the given search criteria.

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