latitudenumberdefault: 0-90–90 (step 0.1)Site latitude in decimal degrees. Auto-detected from twin geometry if left at 0.
Determines prevailing wind patterns and seasonal variation in the generated rose.
longitudenumberdefault: 0-180–180 (step 0.1)Site longitude in decimal degrees. Auto-detected from twin geometry if left at 0.
Used together with latitude for Ladybug EPW climate lookup.
seasonselectdefault: annualannual | winter | spring | summer | autumnFilter analysis to a specific season or use full year.
Summer winds drive outdoor comfort and natural ventilation. Winter winds govern heating demand and pedestrian discomfort at building corners.
speed_binsnumberdefault: 53–8 (step 1)Number of Beaufort-scale wind speed categories.
More bins give finer resolution at the cost of visual clarity. 5 bins (Calm / Light / Moderate / Fresh / Strong) is standard for urban planning.
direction_sectorsnumberdefault: 168–36 (step 4)Number of compass sectors for the wind rose (must be divisible by 4).
16 sectors is the planning standard. 8 sectors is sufficient for massing studies.
Run with Annual to establish the prevailing wind direction — this should inform street grid orientation and tower placement to avoid wind tunnels. Run Summer to assess natural ventilation potential. Run Winter to identify exposure risks for pedestrian routes and podium-level outdoor spaces.