Sorting and Snapping nodes on same level in a Tree layout

GoJS
#1

Hi all,

I’m using GoJs to build conditional questions in a form. I wanted to sort the question based on the node position (every node is a questions/answer).

  1. How would I get the position of a node on the same level? (let to right to top to bottom)
  2. How to stop overlapping on nodes, when changing node position (sorting manually)?

Thanks in advanced.

Chat.

#2

I’m not sure I understand the situation. Do you know about TreeLayout.sorting and TreeLayout.comparer?

Would you want to perform a layout at the end of each move? If so, implement a “SelectionMoved” DiagramEvent listener that calls myDiagram.layoutDiagram(true).

#3

Hi Walter,

Thanks for the quick reply. Do you know on top of your head, any samples i can refer to regarding TreeLayout.sorting and TreeLayout.comparer?

I think re-layout on move will work like a treat. thanks for the tip.

Chat.

#4

Hi Walter,

I manage to come up with a solution using your solution Functionality in Org Chart to shift a node to left

Is there a way to achieve the same functionality based on location, the user drops the node in?

Thanks,
Chat.

#5

Yes, instead of having the comparer function depend on some property of each vertex’s node’s data (.node.data.sequence in that forum topic), have it depend on the TreeVertex.node.location.x.