All the official sample code available for Rhino and Grasshopper developers.

For additional samples, visit the Developer Samples Repository on GitHub.

RhinoCommon

Adding Objects

• Add Annotation Text
• Add Arrowheads to Curves
• Add Background Bitmap
• Add Brep Box
• Add Child Layer
• Add Circle
• Add Clipping Plane
• Add Command Line Options
• Add Cone
• Add Cylinder
• Add Layer
• Add Layout
• Add Line
• Add Linear Dimension
• Add Linear Dimension2
• Add Material
• Add Mesh
• Add Mesh Box
• Add Named View
• Add Nested Block
• Add NURBS Circle
• Add NURBS Curve
• Add Objects to Group
• Add Sphere
• Add Texture
• Add Torus
• Add Truncated Cone
• Add Twisted Cube
• Copy Groups
• Create Block Definition
• Determine Object Layer
• Duplicate Object
• Extend Curve
• Find Objects by Name
• Get Object UUID
• Modify Object Color
• Move Grip Objects
• Move Objects to Current Layer
• Object Color
• Object Display Mode
• Pick Point
• Pre and Post-Pick Objects
• Rename Object
• Replace Hatch Pattern
• Select Objects in Object Groups
• Select Objects on Layer
• User Data
• Zoom to Object

Blocks

• Add Nested Block
• Block Insertion Point
• Create Block Definition
• Delete Block Instance Definition
• Instance Definition Objects
• Lock Layer
• Rename Block

Curves

• Add Arrowheads to Curves
• Add NURBS Curve
• Brep from Curve Bounding Box
• Calculate Curve Intersections
• Constrained Copy
• Create Contour Curves
• Curve Bounding Box
• Curve Deviation
• Divide Curve by Segments
• Divide Curve Straight
• Extend Curve
• Extract Isocurve
• Fillet Curves
• Find Curve Parameter At Point
• Find point on curve at distance
• Hatch Curve
• Increase NURBS Curve Degree
• Intersect Lines
• Line Between Curves
• Offset Curve
• Reparameterize Curves
• Reverse Curve
• Surface from Edge Curves
• Tween Curve

Drawing

• Conduit Draw Shaded Mesh
• Draw Mesh
• Dynamically Draw Geometry when Picking Points
• Overlay Text Display Conduit

Layers

• Add Child Layer
• Add Layer
• Determine Object Layer
• Lock Layer
• Move Objects to Current Layer
• Rename Layer
• Select Objects on Layer

Picking and Selection

• Dynamically Draw Geometry when Picking Points
• Get Angle
• Pick Point
• Pick Points
• Replace the Color Picking Dialog
• Select Objects in Object Groups
• Select Objects on Layer

Viewports and Views

• Add Layout
• Add Named View
• Determine Active Viewport
• Get and Set the Active View
• Set Viewport Name
• Viewport Resolution

Other

• Add Leader
• Add Radial Dimension
• Advanced Display Settings
• Array By Distance
• Boolean Difference
• Box Shell
• Calculate Surface Curvature
• Change Dimension Style
• Circle Center
• Closest Point Calculation with RTree
• Create Mesh from Brep
• Create Spiral
• Create Surface From Points and Knots
• Curve Surface Intersection
• Custom Geometry Filter
• Custom Python
• Custom Undo
• Determine Language Setting
• Determine Normal Direction of Brep Face
• Display Conduit
• Display Conduit Arrowheads
• Display Order
• Display Precision
• Divide by Length Points
• Duplicate Mesh Boundary
• Duplicate Surface Border
• Dynamically Drawing Text Strings
• Edit Text
• Explode Hatch
• Export Control Points
• Extend Surface
• Extract Render Mesh
• Extrude Brep Face
• Furthest Z on Surface given X Y
• Get Multiple With Options
• Increase NURBS Surface Degree
• Insert Knot
• Instance Archive File Status
• Instance Definition Names
• Instance Definition Tree
• Intersecting Line and Circle
• Is Planar Surface in Plane
• IsBrepBox Test
• Isocurve Density
• Loft Surfaces
• Mesh Volume
• Modify Light Color
• Move CPlane
• Move Points
• Move Points Non Uniform
• Object Iterator
• Orient On Surface
• Orthogonal Mode
• Planar Surface
• Project Points to Breps
• Project Points to Mesh
• Read Dimension Text
• Set RhinoPageView Width and Height
• Show Surface Direction
• Single Color Back Faces
• Space Morph
• Split BReps with Planes
• Sprite Drawing
• Surface from Corner Points
• Sweep Surfaces with Sweep1
• Text Justify
• Tight Bounding Boxes for Breps
• Transform Breps
• Tweak Colors
• Unroll Surface
• Unroll Surface and Mesh
• Visual Analysis Modes

Rhino.Python

• Hello Python
• Array Points on Surface
• Circle From Length
• Copy Objects to Layer
• Create Shortcut
• Get Current Model Information
• Get Curve Length
• Draw a Parametric Curve
• Export Control Points
• Garden Path Sample
• Export Points
• Annotate Curve Endpoints
• Import Points
• Annotate Curve Form
• Sticky Values
• Custom Getpoint
• Make a Circle with RhinoCommon

openNURBS

C/C++

Adding Objects

• Add a Brep Box
• Add a Cone Surface
• Add a Cylinder
• Add a Line Curve Object
• Add a Linear Dimension
• Add a New Layer
• Add a NURBS Circle
• Add Arrowheads to Curves
• Add Background Bitmaps to Viewports
• Add Clipping Planes
• Add NURBS Curve
• Add Objects to a Group
• Add Spherical Surface
• Add Text
• Add Torus
• Add Truncated Cone
• Create a NURBS Circle
• Create Contour Curves
• Create New View
• Create NURBS Surface
• Create Plane Surface
• Create Surface from Edge Curves
• Creating NURBS Cage Objects
• Duplicate Object
• Fillet Curve
• Modify an Object's Name
• Surface from Control Points

Blocks

• Basepoint of Block Instance
• Block Definition Geometry
• Print Instance Definition Names
• Print Instance Definition Tree

Curves

• Add a Line Curve Object
• Add NURBS Curve
• Calculate Curve Intersections
• Calculate Radius of Curvature
• Calculating Partial Lengths of Curves
• Control Point Curve Through Polyline
• Convert an Arc to a NURBS Curve
• Create Bounding Polyline of a Mesh
• Create Surface from Edge Curves
• Curve Evaluation
• Deviation between two Curves
• Divide a Curve by Length
• Divide a Curve by Segments
• Extend Curve
• Extracting Isoparametric Curves from Surfaces
• Intersect Curves with Meshes
• Intersect Line Curves
• Pull Curve to Surface
• Reparameterize Curve
• Split Curve Into Multiple Segments

Layers

• Add a New Layer
• Determine an Object's Layer Name
• Move Objects to the Current Layer
• Select Objects by Layer
• Synchronize Layer Render Color

Picking and Selection

• Get Point at Mouse Location
• Pick Angle Interactively

Surfaces

• Add a Cone Surface
• Add Spherical Surface
• Calculate Solid Volumes
• Create NURBS Surface
• Create Plane Surface
• Create Surface from Edge Curves
• Determine the Maximum Z Coordinate Value of a Surface
• Duplicate the Borders of Surfaces
• Extend Surface
• Extracting Isoparametric Curves from Surfaces
• Loft Surfaces
• Pull Curve to Surface
• Sweeping Surfaces with Sweep1
• Sweeping Surfaces with Sweep2

Viewports and Views

• Create New View
• Get and Set Active Viewport
• Ghost Viewport
• Maximize View
• Screen Capture All Viewports
• Screen Capture Viewport
• Set a CPlane to a View
• Set a View's Construction Plane
• Shading Viewports
• Transform Screen to World Coordinates
• Transform World to Screen Coordinates
• Two View Layout
• Zoom Extents of Points

Other

• Attaching User Data to Brep Components
• Boolean Difference
• Calculate Mesh Volume
• Calculate the Angle Between Two Vectors
• Calculate Volume Centroid of Solids
• Change Construction Plane Modes
• CRhinoGetFileDialog to Preview Bitmaps
• Get Brep Face Vertices
• Hatch Boundary
• Intersecting Meshes
• Mesh Boolean Difference
• Mesh Boolean Intersection
• Meshing Objects
• Modify Grip Weight
• Move a Construction Plane
• ON_SimpleArray Utilities
• Replace Object Hatch Pattern
• Rotate Objects Around Center
• Set Command Prompt
• Show Hidden Objects
• Split Brep
• Split Brep Edges
• Synchronize Object Render Color
• Test if an Object is a Circle

Grasshopper

RhinoScript

Adding Objects

• Add NURBS Curve
• Add Points at Curve Endpoints
• Array Points on Surface
• Auto Label Objects
• Convert Dots to Text
• Create an Ellipsoid Parametrically
• Create an Icosahedron
• Create Box Frames
• Create Center Point on Closed Curve
• Create Square Pipes
• Drawing Steel Shapes
• Fibonacci Spirals
• Mark Points on a Line
• Multiple Pipe
• Platonic and Archimedean Solids
• Polar Arrays
• Random Surface Points
• Revolve Profile Curves

Blocks

• Block Utilities
• Convert Block to Group
• Count Block Instances
• Exploding Block Instances
• Export Block Count to Excel

Curves

• Curve Properties to Excel
• Divide Curve to Dashed
• Divide Curve With Equidistant Points
• Evaluate Curve Torsion
• Export Curve Control Points
• Extract Interpolated Curve Construction Points
• Extract Isocurve Intersection Points
• Find Closest Curve to Point
• Import Interpolated Curve
• Knot Multiplicity
• List Knot Vector of NURBS Curve
• Move Curve Grips
• Offset Curve
• Select Curves by Degree
• Set Length of Curve
• Splitting Curves into Segments
• Straightening Circles
• Trim Curve with Circle

Layers

• Export Layer Objects
• Isolate Layers
• Save and Restore Layer States
• Set Hierarchical Layer Names

Picking and Selection

• Determining Selected Groups
• Select by Linetype
• Select Curves by Degree
• Select Dimensions by Style
• Select Named Objects from a List
• Select Planar Meshes
• Select Points by Z Coordinate
• Select Text by Height
• Select Text Objects
• Set Length of Curve

Surfaces

• Array Points on Surface
• Knot Multiplicity
• Morphing a Surface
• Move Surface Grips
• Positioning Objects on a Surface
• Print Surface Control Points
• Random Surface Points
• Revolve Profile Curves
• Script FlowAlongSrf
• Script the Split Command
• Unrolling Surfaces and Polysurfaces

Viewports and Views

• Render Named Views
• Set Camera Angle

Flamingo

• Assign Flamingo Material
• Flamingo Legacy Plant Browser
• Flamingo Object Mapping Properties
• Get Flamingo Material
• Get Mapping Information From Object
• Get Material List
• Get Plant Points
• Import Flamingo Material
• Modify Flamingo Plant
• Query Flamingo Plant Objects
• Query Plant Wireframe
• Tag Object As Flamingo Plant
• Un-tag an Object as a Flamingo Plant

Other

• Airfoil Shapes
• Arc Point Distribution
• Batch Convert AutoCAD Files
• Batch Render
• Batch Save Small
• Calculate the Angle Between Two Vectors
• Circle Packing
• Computer Physical Address
• Count Objects
• Create CutPlane
• Exploding Meshes
• Export Points to Excel
• Exporting Meshes to Geomview
• Extract Thumbnail Preview Images
• Get RGB Color Intensities
• Import Text from File
• Is Dynamic Array Dimensioned
• Join the Dots
• List AutoCAD Export Schemes
• List IGES Export Schemes
• Match Object Attributes
• Match Text Properties
• Mesh Volume Centroid
• Opening 3DM Files
• Perpendicular Vectors
• Rotate Object Around Point
• Rotate Plane Parallel to World
• Save Plugin List to File
• Save Video Card Info
• Saving Files
• Scale Text by Dimension Scale
• Select Multiple Files
• Set Material Colors from Object Colors
• Split File Path String

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