Default: "destination". Applicable when from is an edge result expression. Control which side of the edges in from to chain to. The behavior depends on the direction setting in the from result expression:
If from follows edges outwards, direction="outwards" (default), then "source" selects startNode and "destination" selects endNode.
If from follows edges inwards, direction="inwards", then "source" selects endNode and "destination" selects startNode.
Default:
"destination". Applicable whenfromis an edge result expression. Control which side of the edges infromto chain to. The behavior depends on thedirectionsetting in thefromresult expression:fromfollows edges outwards,direction="outwards"(default), then"source"selectsstartNodeand"destination"selectsendNode.fromfollows edges inwards,direction="inwards", then"source"selectsendNodeand"destination"selectsstartNode.