Your Geometry Is Done. Your Data Isn't Connected.
Part 1 of a series — a Dynamo tunnel geometry that was already finished, a 33-sheet Excel workbook it had never been wired to, the web viewer built to referee the two, and the Revit add-in at the end of it. A working Dynamo graph already existed. It produced the full 3D geometry of a Korean road tunnel project (NATM), 892 m of it, and it ran without errors. The problem was that nothing inside it knew where its numbers came from. This post is about the two artifacts I inherited: a 617-node graph with zero external data references, and a 39-sheet workbook that is a complete, beautiful drawing set for a human being and an unlit maze for a machine. Everything below is measured from the files themselves — static parsing of the graph JSON and cell-level reads of the workbook. What the original graph was actually building The 892 m tunnel solid the original Dynamo graph already produced, shown in the viewer's 3D mirror. The geometry was never the problem — nothing in it was linked...