LLM + RAG Suspension_Bridge Generator (Grasshopper C# STEP_00–STEP_09)

Wickerson Studios — BRIDGE_RAG (Suspension Bridge LLM + RAG STEP Pipeline)

BRIDGE_RAG is a STEP_00 → STEP_09 Grasshopper C# script series that generates a high-LOD suspension bridge CAD assembly (towers, deck, truss, rail/catwalk, main cables + hangers, clamps/dampers/panels), built around two non-negotiable ideas:

1. LLM + RAG-ready configuration
2. You drive the entire system with CFG/SFG strings and an EngineState JSON, so an LLM (and your retrieval library) can actually control geometry outcomes by editing the exact parameters your nodes consume.
3. BasePlane-safe placement everywhere
4. All critical placement uses length-parameterization + BasePlane up-projection, so details don’t “drift” or flip when your axis is curved or your BasePlane is rotated. That’s why the “hardware pass” (clamps/dampers/panels) lands where it should.

What it produces

A buildable-looking bridge assembly with controllable realism:

• Twin towers + saddles aligned to tower tops
• Cable system solved with clearance constraints
• Hangers reconstructed from corrected cables
• High-LOD secondary structure + hardware + panel systems (both sides)

Why it’s a Wickerson Studios product

Because it’s not “just parametric.” It’s prompt engineering translated into deterministic geometry:

• Prompts → retrieval (style cards / precedent snippets / engineering rules) → CFG edits → CAD assembly
• Seeded, repeatable, and tunable to your preferred aesthetic + structural language

Sales / Product Ad Copy (for www.wickersonstudios.com)

BRIDGE_RAG — Prompt-Driven Suspension Bridges in Grasshopper (C# STEP System)

Build a suspension bridge like you build a parametric machine: seeded, modular, high-LOD, and LLM-controllable.

BRIDGE_RAG is a complete STEP pipeline (00–09) that turns CFG/SFG strings into a full 3D CAD bridge assembly—then locks every detail into place using length-stationing + BasePlane-safe projection, so your clamps/dampers/panels land exactly where they should.

You get:

• A full STEP node series with EngineState JSON + logging
• LLM + RAG ready “control surface” via CFG/SFG strings
• High-LOD bridge generation (towers, deck, truss, cables, hangers, hardware)
• Realism-first placement logic (no more rotated-plane chaos)
• Fast toggles to go from “preview light” → “render heavy”

Use it for:

• Portfolio-grade generative engineering aesthetics
• Studio teaching (prompt engineering for CAD)
• Rapid concept families (seed + prompt = new bridge DNA)
• Fabrication-aware assemblies and downstream meshing

This is THE WICKERSON WAY:

Prompt → Config → Deterministic Geometry → High LOD Output.