i m setting “linkKeyProperty”: “key” but it is not assigning unique keys to the link. the keys assigned are overlapping with the node keys for reference
subject area in pic has key =-13
the link labeled comprises of also has key = -13
how to make them unique
You can set up separate functions for Model.makeUniqueKeyFunction and GraphLinksModel.makeUniqueLinkKeyFunction. An example of this is in the Incremental State Chart sample, which uses odd numbers for nodes and even numbers for links.