Drop Zones

class NodeDropZone()

Description of a NodeDropZone.

interface

NodeDropZone.bbox

type: Rect

The bounding box of the drop zone.

The coordinates of the bounding box are relative to the node the drop zone is in.

NodeDropZone.blacklist

type: Set<string>

The blacklist node-type filter of this dropzone.

Only active if the whitelist is empty.

NodeDropZone.id

type: string

The id of thedrop zone. (unique for all zones of the same node)

NodeDropZone.whitelist

type: Set<string>

The whitelist node-type filter of this dropzone.

If the whitelist is not empty any node-type not in the whitelist will be rejected.

Related Functions

filterDropzonesByType(zones, nodeType)

Generator returning all dropzones that are compatible with the given node type.

See blacklist and whitelist of NodeDropZone for the filter criterium.

Arguments:

• zones (Map<string, NodeDropZone>) –

• nodeType (string) –

Returns:

Iterable<NodeDropZone> –

calculateSquaredDistanceFromNodeToDropZone(dropZoneAnchor, dropZone, nodePosition)

Calculate the squared distance between the dropzone center and a node.

The squared distance is enough to find the closest drop zone.

Arguments:

• dropZoneAnchor (Point) –

• dropZone (NodeDropZone) –

• nodePosition (Point) –

Returns:

number –