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Pick an EPW weather file from a bundled catalog of 60,868 climate files — every TMYx station on climate.onebuilding.org plus the EnergyPlus store (IWEC, TMY3, CWEC, SWERA, …) — with your own folders and Morph Weather results listed alongside them. Click the Station widget and choose Browse library… for a searchable table with a map, or type a name, WMO id or direct URL. The catalog is searched offline; only the chosen file is downloaded, once, into the weather cache.

Engine settings for Morph Weather: climate products, spatial interpolation, uncertainty case and solar methods. Every value left empty stays on the Future Weather Generator's own default.

Morph a present-day EPW into future-climate EPWs with the Future Weather Generator (future-weather-generator.adai.pt), then feed the result to any Eddy3D workflow. Needs Java 17+ and the generator's .jar, which Eddy3D does not ship: download the distribution you need (CMIP6 Global, CORDEX-CMIP5 Europe, …) into ~/Eddy3D/FWG. The tool is licensed CC BY-NC-SA 4.0 — noncommercial use, attribution required.

Deconstruct a Weather object into hourly time series values. OutdoorPlus

Visualize monthly dry-bulb temperature and relative humidity from Eddy3D Weather as two aligned min/mean/max charts.

Convert specific humidity (w) and temperature (T) to relative humidity (%). OutdoorPlus

Read an EPW file and create a Weather object for the simulation. OutdoorPlus

Fetch land-cover polygons around a location from OpenStreetMap (open data, Overpass API) and classify each into an aerodynamic roughness length via the Davenport-Wieringa terrain classification — plus the terrain elevation around the site (AWS Terrain Tiles, open data). Outputs ready-made ground roughness zones and a terrain mesh for the wind case.

Combine a multi-part building mesh into a single watertight, CFD-ready solid via the bundled Python mesh service (trimesh/manifold3d/pymeshfix). The server auto-starts locally on the first run (uv-managed Python environment; first start installs it, 1-2 minutes) and is reused afterwards.

Visualize a wind direction on a compass circle. Direction is meteorological degrees (0=N, 90=E, 180=S, 270=W); outputs the flow vector and the 16-point cardinal name.

Cluster annual wind conditions into a budget of representative directions using k-means over hourly wind vectors (speed x direction): frequent, strong conditions attract the budget, and each cluster reports an observed direction/speed pair plus its frequency. Without wired speeds, clusters directions alone (unit vectors). Method: Kastner & Dogan (2022), Building and Environment 212:108639, doi:10.1016/j.buildenv.2021.108639; Kastner & Dogan (2019), Building Simulation 2019, Rome 621-628, doi:10.26868/25222708.2019.210458.

Define an analysis period (from/to day of year, start/end hour of day) and output the hour-of-year indices it covers, for filtering annual results.

Interactively select a month, day, and hour for annual analysis. Click the controls on the component to change the date and time.

Convert a start date/time and optional end date/time into hour-of-year values (1–8760) for indexing annual hourly data.

Translate a Ladybug analysis period to hours of the year.

Export geometry to STL format for OpenFOAM or other CFD tools. Supports meshes and Breps (auto-meshed); binary or ASCII, single or multiple files.

A boolean toggle that is always FALSE when a file is opened. Useful for preventing automatic execution of heavy work. When Run is connected to several component inputs, they run one Grasshopper solution at a time in canvas order. Double-click to toggle.

Hold the last output while the left mouse button is pressed, then publish the newest value when the button is released. Useful between an MD Slider and an expensive component.