Learn RHINO-GRASSHOPPER-SCRIPTING with Real Code Examples
Updated Nov 27, 2025
Installation Setup
Install Rhino from official website
Install Grasshopper (bundled with Rhino 6+)
Install optional scripting environment (Python editor, Visual Studio for C#)
Install necessary plugins for geometry or fabrication
Open Rhino and load Grasshopper interface
Environment Setup
Install Rhino and Grasshopper
Install scripting IDE (Python or Visual Studio for C#)
Load necessary plugins
Open GH definitions and Python/C# components
Test small scripts and definitions
Config Files
Rhino .3dm project files
Grasshopper .gh or .ghx definitions
Python/C# script files for custom components
Plugin folders
Assets (textures, meshes, CAD references)
Cli Commands
No native CLI; automation via Python scripts
RhinoScriptBatch for automated Rhino tasks
Rhino.Inside.Revit for interoperability
Python scripts executed via GhPython or Rhino.Python
C# scripts compiled as GH components or Rhino plugins
Internationalization
Grasshopper supports multiple languages in interface
Scripts portable across regions
Rhino and GH documentation localized
Community resources in many languages
Unicode supported in scripting
Accessibility
Visual programming reduces coding barrier
Drag-and-drop components simplify workflow
Scripts can be shared as .gh files
Community tutorials and forums widely available
Supports collaborative parametric design
Ui Styling
Grasshopper canvas for node-based workflow
Custom GH components with colors/icons
Panels to display data
Preview geometry in Rhino viewport
Optional Human UI plugin for interactive GUIs
State Management
Parametric relationships determine state
Sliders and inputs define variable values
Data trees organize hierarchical information
Python/C# variables control logic
Event updates propagate changes through GH canvas
Data Management
Points, curves, surfaces, meshes
Numerical data via sliders and panels
Lists and data trees for structured input/output
External data import/export (CSV, Excel, JSON)
Scripted geometry manipulation and storage