Rain garden

Rain garden is an L6 showcase built from real Harth library objects: 13 parameterised instances of 4 distinct objects. The background is authored geometry — a 31 × 19 m inspection floor with context massing, a north point and a 1.7 m scale figure — so every planting item in the scene is a live, editable library instance rather than fixed mesh.

Open it and the planting objects keep their parameters and connector metadata, so the agent can inspect, check and correct them.

Original reference-informed design in nominal metres; no survey or registered scan.

Connections and material sizes illustrate principles; no structural, fire, thermal or regulatory performance is certified.

Four isolated nominal drainage specimens use excavated openings through both the gallery floor and the automatic site pad. The front gallery is a continuous protected viewing route.

Detention chamber, flow-control aperture, swale profile, inlets, layers and connections demonstrate geometry only; no catchment, rainfall, storage, discharge, infiltration, structural or hydraulic performance is calculated.

Cutaway walls, roof segments and layer strips are deliberately omitted and recorded as inspection omissions. Analytical waterline is not a predicted operating level.

Real library geometry and parameters are retained. GLB and IFC are static inspection mirrors; use the placement package to create editable Harth library instances.

No routing solver or persisted connection graph is claimed. The documented port pairs are authored joints, and every unused port is listed.

Nominal design geometry; no engineering rating, code compliance, horticultural suitability or cadastral accuracy is claimed.

The swale receives raised, level planting benches at y=0. The existing lower channel remains a cutaway hydraulic illustration; planting does not follow terrain.

Try these prompts with the agent:

Inspect planting on the swale benches and identify the hydraulic channel retained below them.

Check purei, wind grass and dianella spacing against the displayed inlet and outlet.

Replace the ground-cover patch with a different seed while retaining its bed footprint.

Explain why infiltration rate, drainage capacity and flood level cannot be verified from these plants.