A series of algorithms and general-purpose tools User Objects for Grasshopper 3d, a visual scripting plugin developed by David Rutten for Rhinoceros 3d (v.5), by Robert McNeel and Associates. Many of these tools were inspired by Projects developed at Grimshaw Architects and Projects at Woods Bagot and are made available under the MIT License.

These components generate a revolved mesh arrow around a vector axis from an origin point.

This C# Component for Grasshopper takes a list of numbers in any sequence and proportionally unitizes the values from 0 to 1.

This C# Component for Grasshopper takes a list of points in any sequence and proportionally unitizes the X,Y,Z values from 0 to 1. The user …

These two components allow for two means of list organization. Shear List takes a list of data and creates two lists, one with the last …

Creates a circle from three points that touches all three edges of the triangle at the point perpendicular to the circle’s center.

This vb Component for Grasshopper takes three edge length and produces the corresponding triangle.

From a sample point, a list of points will be sequentially sorted by marching through each closest point until the point list has been exhausted.

The component now tests a single sample point against a list of origin points which can have a wavelength and diminishing rate assigned to them. …

This component applies a regular triangulated mesh to a nurbs surface with multiple options for triangulation directions.

This component implements a mixed approach to creating curves of constant width for regular polygons of odd segment count.

This component progressively bounces rays off of breps for a given number of loops from an origin and initial direction. It is beta, and has …

This collection of preset value list components contain the RGB values for the RAL color scheme.

This component is a rework of the “Radially Sort” component. Instead of using a circle the component has been simplified to a much more straight …

The Radial Hexagon component mimics the setup of the radial grid component in grasshopper and creates a hexagonal cell patterning radially about the center of …

The Radial Diamond component mimics the setup of the radial grid component in grasshopper and creates a diamond cell patterning radially about the center of …

This function takes a rectangular grid of points and extracts collections of four points in the order needed to make a four-point surface.

This vb Component allows for the production of repetitious patterns in repeating rhythms in a two dimensional array with an output of a set values …

Returns the character from an integer index value, 1=A, 2=B, etc.

This vb Component for Grasshopper uses a Boolean pattern to select either a true or false value input.

This C# Component for Grasshopper is a simple stripped down tool that takes an analysis from Ecotect and extracts the relevant information into numerical values …

This very basic component implements the Rolling Ball Fillet from Rhino Common.

This component inverts the RGB values from a color and returns the converted value.

This component returns the full layer path for a referenced rhino object from its GUID.

This C# Component for Grasshopper tests a number value against a floor and ceiling value returning the floor if lower, the ceiling if higher, and …

Enables the conversion of Adobe ASE swatch library files to Grasshopper RGB and CMYK values which can be plugged into the appropriate grasshopper color functions.

This component allows for the parametric definition and evaluation of a color gradient. Using a list of colors as an input a gradient will be …

These components allow for several types of rounding available from the expressions component, but made unique objects here for simplicity.

This component takes a list of colors and returns the mean average color based on the RGB channels.

This component projects mesh silhouette polylines to a given plane or view plane.

This component offsets a curve in both directions by a set amount.

This series of components access the sun system in Rhino and allow for control and returning of sun parameters.

The NOAA sun calc component implements and National Oceanic and Atmospheric Administration’s free online Solar Calulation tool and equation found here.

This component sequentially finds the closest point from a list of geometry including curves, breps, and meshes.

This component iteratively samples a surface, mesh, or polysurface to find the most vertical flow path along a geometry.

This component triangulates a mesh and lays out each face as a set of tiles on a two dimensional plane adding annotated tabs.

This component lays out each face of a mesh as a set of tiles on a two dimensional plane adding annotated tabs.

This update to the Rhino Lights set of components allows for the manipulation and creation of Rhino light objects from grasshopper.

This component is developed to create a more even aspect ratio for grids by creating points through iteratively sampling proximity to adjacent curves.

This user object component takes an Energy Plus Weather (.epw) file path input and deconstructs the tabulated data into lists corresponding to the sample dates.

This user object component takes a list of objects and randomly distributes them into a user specified number of sets.

This user object runs what is known as Lloyd’s Algorithm, an iterative implementation of a Voronoi Solution where each iteration uses the previous iterations area …

This view analysis component takes a user-specified visual plane, field of view angle, and distance limit to test for view obstruction from input meshes. The …