Discover the direction in which a link was drawn

GoJS
1

Hi,

Is it possible to determine in which direction a link was drawn?

I have a listener for drawn and relinked events:

    diagram.addDiagramListener("LinkDrawn", event => { this.linkedOrRelinked(event); });
    diagram.addDiagramListener("LinkRelinked", event => { this.linkedOrRelinked(event); });

Just to be clear, the link itself has a natural direction, I understand (via from and to). But if a link is drawn by dragging from the to port to the from port, I would like to distinguish this from the case in which it is drawn by dragging from the from port to the to port.

Thanks.

2

You cannot tell that from the Link object (the DiagramEvent.subject) that was newly drawn or reconnected, but you could look at the LinkingTool or RelinkingTool: LinkingBaseTool.isForwards.

e.diagram.toolManager.linkingTool.isForwards
3

perfect, thanks.