Toggle graph in & out a fixed number of layers

[EatingW]

Poker planning notes:

• Display a fixed depth or collapsing the node on click?
  • click is also used for metadata so using click might not be ideal
  • left click vs right click? cytoscape might not have a right click option
  • 2 buttons; up = reduce the layer, down = expand.
  • Decision: using drop down/user input for max depth from the root. Root = nodes with no in edges. Always show the roots.
• What if the first layer (children of roots) is already 5000 nodes?
  • one use case: filter on one root and display the depth up to N for this root. (not in scope for this task)
• Should the graph be mutated on the server side or client side?
  • Don't know how big the graph is, might be a lot of json data.
• When are the roots determined?
• roots stored in the server somewhere, created at initial graph creation, updated as mutations are applied
• Steps:
  • client side add user input.
  • server side generate a graph that has only nodes up to a certain depth
  • give the graph as json to the client
• How to consider this done?
  • server side unit tests for the roots.
  • server side unit tests for the max depth function for returning the graph
  • on the client side manually verify that the graph is only displayed up to a certain depth.
  • client side unit test that the client is sending the correct request to the server (request parameters)

Proposed estimate: 4