Learn C# in Grasshopper — 3D Interactive Study Guide | 12-Step Script | Rhino 7/8

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PAYHIP PRODUCT LISTING — LEARN C# IN GRASSHOPPER

Wickerson Studios — wickersonstudios.com

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PRODUCT TITLE

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Learn C# in Grasshopper — 3D Interactive Study Guide | 12-Step Script | Rhino 7/8

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SUBTITLE / TAGLINE

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Master parametric scripting without leaving Rhino. 12 visual steps

from zero to custom User Objects. The code IS the textbook. The

geometry IS the diagram.

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PRODUCT DESCRIPTION (PAYHIP LISTING BODY)

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Learn C# scripting for Grasshopper — inside Grasshopper.

This single C# Script component is a complete 12-step course. Slide

a number from 1 to 12 and a colour-coded 3D NURBS diagram builds

itself in your Rhino viewport — a component interface map, a DataTree

shelf system, a Boolean operations lab, an attractor field. Read the

code comments and you are reading the lesson. Bake it and you have

a reference poster you can orbit in 3D.

Designed for architects and computational designers who work in Rhino

and want to unlock the full power of C# scripting in the Maths >

Script > C# Script component.

▸ WHAT YOU GET

• LearnCSharp_GH_Script.cs — the complete 12-step interactive model

(1,360 lines · 58.1 KB)

• LearnCSharp_README.txt — full installation guide, step map,

detailed descriptions of every lesson, tips for learning

▸ THE 12 STEPS

1 Component Interface

The three zones: Inputs → Code Editor → Outputs.

RunScript(), Print() for debugging, A for results.

Finding the component, editor anatomy, error handling.

2 Data Access & Type Casting

Three access levels: Item, List, Tree.

Type hints: Point3d, double, Curve, Brep.

Manual casting, GH wrappers, common pitfalls.

3 C# Programming Fundamentals

Variables, operators, for/foreach/while loops, methods.

Core types: int, double, string, bool, Point3d.

Scope, comments, and method signatures.

4 RhinoCommon Geometry

Point3d, Vector3d, Line, Circle, Plane, Arc, Box, Sphere.

Actual geometry generated live in the viewport.

Struct vs class, coordinate access, distance calculations.

5 Lists (List<T>)

Add, Remove, Access, Sort, Search, LINQ.

Indexed chain visualisation with operations as spheres.

Common patterns: grid generation, ToArray(), filtering.

6 DataTrees

GH_Path, branches, tree creation and looping.

Visual shelf system with items grouped per branch.

Flatten, Graft, Trim, Flip operations explained.

7 Conditional Logic

if/else flowchart with true/false branching.

Comparison and logical operators, switch statements.

Ternary operator, null checks, LINQ filtering.

8 Vector Transformations

Translate, Rotate, Scale, Mirror from a central original.

Transform class: Translation, Rotation, Scale, PlaneToPlane.

Combining transforms, vector math refresher.

9 Curves & Surfaces

Polyline, NurbsCurve, Loft, Extrusion generated live.

Interpolated curves, Revolution, Pipe, Patch.

Circle/Arc to NurbsCurve conversion.

10 Attractor Logic

7×7 grid of spheres sized by distance to attractor point.

Remap formula, curve attractors, multiple attractors.

Colour gradients driven by proximity.

11 Brep Manipulation

Union, Difference, Intersection side by side.

Split, Trim, face/edge access, property queries.

.IsSolid, .GetArea(), .GetVolume(), .Faces.Count.

12 User Objects & Optimisation

WRITE → TEST → PACKAGE → OPTIMISE → SHIP pipeline.

8 optimisation tips: caching, Parallel.For, arrays,

BBox pre-check, Stopwatch profiling, Release mode.

.ghuser creation and distribution.

▸ KEY FEATURES

• Single-file delivery — one .cs, paste and go

• Zero plugins — works with stock Rhino 7/8 + Grasshopper

• Zero internet required — fully self-contained

• 8 colour-coded material branches for clear diagrams

• Bake to layers with TextDot labels for permanent reference

• 1,360 lines of commented, production-quality C# code

• Code comments are the full curriculum — read the .cs to study

• Suitable for total beginners — no prior C# knowledge needed

• Also valuable for intermediate users filling knowledge gaps

• Great for instructors — baked models make physical 3D posters

▸ WHO IS THIS FOR

• Architects wanting to move beyond visual nodes

• Computational design students learning parametric scripting

• Grasshopper users hitting the limits of standard components

• Anyone who wants to access the full RhinoCommon API

• Instructors who want 3D lesson aids for C# scripting courses

• Designers building custom tools, attractors, or solvers

▸ REQUIREMENTS

• Rhino 7 or 8 (Windows or Mac)

• Grasshopper (built into Rhino)

• No additional plugins or packages

• No prior C# or programming experience needed

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TAGS (PAYHIP SEARCH)

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c#, csharp, grasshopper, rhino, learn c#, tutorial, scripting,

parametric design, computational design, rhinocommon, 3d diagram,

brep, nurbs, attractor, datatree, visual programming, AEC,

architecture, generative design, education, study guide,

interactive, coding, dotnet, wickerson studios

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Learn C# in Grasshopper — 3D Interactive Study Guide | 12-Step Script | Rhino 7/8

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