Lineage data review

Terminology

Node (person)

One record from your Airtable people table after we normalize fields (label, soul, themes, years, etc.). The chart draws a point per node.

Edge

Our application object for one directed relationship: source → target, plus edgeLayer (lineage vs era) and relationshipType. Edges are built in airtableLineage.js: soul threads from people’s “previous life” links, and connections from the connections table. Rows below are the same array passed as edges to LineageGraph.

Link row

One row for Cosmograph’s links table: same relationship as an edge, but shaped for the library (sourceIndex, targetIndex, visualLinkColor, visualLinkWidth). We derive these in the app; they are not a second Airtable table.

Lines on the chart

Yes. Each edge / link row is drawn as a line between two nodes (soul lineage and era/time use different colours). The force layout moves nodes; the line follows the pair.