Open Access
Table 1.
Properties of all surfaces in the database including the control surfaces (0–2) and the extension (3–28).
| ID | Scale | Λ x [mm] | Λ y [mm] | h struct [mm] | Symmetry | Location | Name – Description |
|---|---|---|---|---|---|---|---|
| Regular surfaces | |||||||
| 0 | 1 | Flat | 0 | rot | A, S, V | Reference – Flat reference | |
| 1 | 1 | 70.8 | 0 | 20.4 | x, y | A, S, V | Sine – 1D-sinusoidal control surface |
| 2 | 1 | 84.3 | 84.3 | 48 | x, y | A, S, V | Square – 2D-rectangular control surface |
| 3 | 1 | Random | 48 | y | S | mls – 1D MLS diffusor | |
| 4 | 1 | 59.8 | 52.8 | 48 | y | S | pins2d – Periodically distributed parallelepipeds in 2 dimensions |
| 5 | 1 | 59.8 | 0 | 48 | y | S | pins1d – Periodically distributed parallelepipeds in 1 dimension |
| 6 | 1 | 135 | 135 | 45 | x, y | S | modularWithout – Modular surface consisting of triangular prisms in periodic arrangement |
| 7 | 1 | 135 | 135 | 45 | x, y | S | modularWith – Modular surface consisting of triangular prisms in periodic arrangement |
| 8 | 1 | Random | 45 | – | S | modularCircle – Modular surface consisting of circular prisms in random arrangement | |
| 9 | 1 | Random | 40 | – | S | polystyreneCircle – Made of polystyrene | |
| 10 | 1 | Random | 50 | – | S | polystyreneClayed – Made of polystyrene with clay layer | |
| 11 | 1 | Random | 42 | – | S | polystyreneTriangle – Made of polystyrene | |
| 12 | 1 | Random | 50 | – | S | polystyreneClayedWood – Made of polystyrene with clay layer | |
| 13 | 1 | Random | 48 | – | S, V | L – Random arrangement of L-shaped blocks | |
| 16 | 4 | 65 | 0 | 12.5 | y | A, V | Saw – Cladding of facade 1 [10, 37] |
| 17 | 1 | 1.3 | 73 | 5 | x, y | A, V | Small – Cladding of facade 2 [10, 37] |
| 18 | 40 | 75 | 0 | 50 | y | A, V | vorsprung – Bay division of facade 2 [10, 37] |
| 19 | 10 | 114 | 72 | 49.8 | x, y | V | Tables – Typical table arrangement in a class/seminar room |
| 20 | 1 | 80 | 0 | 400 | x, y | V | Triangle – Retroreflective triangular surface |
| 21 | 3 | 80 | 0 | 40 | x, y | V | Bras – 1D-rectangular surface as used in BRAS [36] |
| 22 | 18 | 75.2 | 170 | 16.4 | x, y | V | ihtaFacade – IHTA facade in IHTApark [38] |
| 23 | 20 | 236 | 152 | 14 | y | V | blbFacade – BLB facade in IHTApark [38] |
| 24 | 17.7 | 80 | 169.7 | 40 | x, y | V | Ainsworth – Ainsworth facade in Sydney [7] |
| 25 | 1 | 80 | 0 | 23.1 | x, y | V | qrd – 1D QRD diffusor N = 7 |
| 26 | 1 | Random | 20 | x, y | V | rand – Random hemispheres r = 2 cm on a flat baseplate (50% coverage) [39] | |
| 27 | 10 | 80 | 0 | 24 | x, y | V | scaleMeasurementRect – Facade one, used in small scale measurements |
| 28 | 4.5 | 80 | 0 | 24.0 | x, y | V | scaleMeasurementTriangle – Facade two, used in small scale measurements |
| Singular objects | |||||||
| 14 | 1 | Singular | 32.5 | rot | S | sphericalCap – Spherical cap, with a radius of 2.15 m | |
| 15 | 1 | Singular | 0 | – | S | Spiral – Spiral-based vortex diffuser [40] | |
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