Quick guide — how to drive the graph
- Add a node: double-click empty canvas and pick a type (or right-click → Add Node).
- Wire: drag from an output port to an input port. Sockets are typed — a material wire only fits a material input.
- Inspect: click any node; the full-size chart appears in the Inspector below the canvas.
- Edit values: drag horizontally on a number widget; click a combo to choose.
- Remove: select a node and press Delete. Drag the title bar to move it.
- Save: Share graph copies a URL that restores nodes, wires and values exactly.
- Try this: the ΔT output of Photothermal is a spectrum too — wire it into Peak analysis to measure the width of the thermal resonance (that is what the Thermal chain example does).
- Fit an experiment: add a Fit to data (Mie) node, wire material + environment, load your measured (λ, extinction) CSV — it fits radius and amplitude and shows data, fit and residuals in the Inspector.