The tour of a graph
The tour walks through the graph node by node, in the order the data flows, and says at each stop what the node is and what it does here. It is the fastest way to understand a graph someone else made, or one the assistant just built. No model is needed: the tour uses the explanations already saved and what the app knows about each kind of node.
How to start it
- Tour on the canvas toolbar.
- Graph ▸ Guided tour.
- Right-click a node ▸ Tour from here: the tour starts at that node.
- After a build: Tour the graph in the build result.
It tours the level on screen: the main graph, or the inside of an open subgraph.
While it runs
- The view moves to each node in turn and shows its description card.
- The node of the step and the nodes that feed it stand out; the rest of the graph dims.
- A bar under the canvas toolbar has Previous step, Play / Pause, Next step, "Step 3 of 7" and End tour.
- Click a node of the graph: the tour goes on from that node.
- Any press on the canvas pauses the playing.
Escape, End tour, or Tour again ends it.
With Play the guided tour automatically off (Settings ▸ Canvas), the tour waits at each stop until you press Next step. With motion off, it does not play by itself either.
What can go wrong
- Tour is grey on an empty graph and during a history replay.
- A node nobody has described gets a plain sentence: "Takes MODEL and gives LATENT." Ask the assistant about it, or write your own description.