GHPick « Pedro de Azambuja Varela

GHPick

Pick Grasshopper components directly from their preview geometry in the Rhino viewport.

About GHPick

GHPick provides reverse selection between the Rhino viewport and Grasshopper.

In large Grasshopper definitions, finding which component is responsible for a particular piece of preview geometry can mean searching across a large canvas. GHPick reverses that workflow: start from the geometry you see in Rhino and go directly to the Grasshopper component behind it.

Simply Alt+Click on Windows or Option+Click on macOS on visible Grasshopper preview geometry. Alternatively, run the GHPick command and click the geometry you want to locate.

When several components overlap, GHPick displays a candidate list with the actual Grasshopper component icons. Hover over the candidates to highlight their corresponding geometry in the Rhino viewport, then click to locate the selected component on the Grasshopper canvas.

Features

Direct picking from Grasshopper preview geometry
Alt+Click on Windows / Option+Click on macOS
GHPick command for direct picking
Candidate selection for overlapping geometry
Interactive viewport highlighting while browsing candidates
Grasshopper component icons in candidate lists
Automatic navigation to the selected component on the Grasshopper canvas

Compatibility

	Grasshopper 1	Grasshopper 2
Rhino 8	✓	—
Rhino 9	✓	✓

Available for Windows and macOS.

Installation

GHPick is available through the Rhino Package Manager.

Run PackageManager in Rhino.
Search for GHPick.
Click Install.

Usage

Pick

Alt+Click on Windows or Option+Click on macOS to pick visible Grasshopper preview geometry directly in the Rhino viewport.

Choose

If several Grasshopper components overlap, hover over the candidate list to identify their corresponding geometry.

Find

Select the desired candidate and GHPick takes you directly to the corresponding component on the Grasshopper canvas.

Help and feedback

Discussion & Support

For questions, bug reports and feedback, please use the GHPick discussion thread on the McNeel Forum.

GHPick 0.6.2
Developed by Pedro de Azambuja Varela · September 2026

Similar Projects

Digital Darq
Presentation in the Digital Darq event. Showcase of personal research on cork stereotomies.
Flying Earth – 2022 Lisbon Triennale
Between the geological earth and the rubble turned ground, architecture happens. It is in the cycles that happen between those two moments that the Flying Earth proposal is developed. Addressing the Trienalle challenges, it explores how the Earth’s most sourceable matter may provide the human being with an infinitely available and carbon-free material, contributing to […]
Eliptical spaces in religious architecture – Igreja dos Clérigos at Porto
Final thesis of the Architecture course at Faculdade de Arquitectura da Universidade do Porto.
Grasshopper – Pick region
Grasshopper does not seem to have the “pick region” feature from the Rhino Hatch command. I have created such an algorithm, taking advantage of recursive computing provided by the Hoopsnake plugin. You can download the .gh file here: FindRegion.gh The overall idea of the algorithm is to find the curve that has the shortest angle relative […]
Plaster tri-arch
Recent developments in digital design and fabrication tools have led architects and researchers to renew the interest in stereotomy. This interest converges with a growing ecological and economical conscience that matches classic stereotomy raw material needs: compression resistance materials. However, material resources or prefabrication time are still major counterparts for the adoption of this construction […]
Geometrias XIII – Informar a Curvatura de Gauss
Lecture in the APROGED annual encounter about the Gauss Curvature and new ways of communicating it through Grasshoppper visualization. Lecture in April 2013
Flying Earth Workshop
This workshop was lectured at Istanbul Technical University. A collaboration between FAUP’s DFL and ITU’s ArfLab, the vault was built with stereotomic rammed earth voussoirs.
CorkCrete Arch
An experiment within the DFL. Project coordination: José Pedro Sousa Design team: Pedro de Azambuja Varela, Pedro Martins Photographs: Carlos de Albuquerque Castro
GHPick
Pick Grasshopper components directly from their preview geometry in the Rhino viewport. About GHPick GHPick provides reverse selection between the Rhino viewport and Grasshopper. In large Grasshopper definitions, finding which component is responsible for a particular piece of preview geometry can mean searching across a large canvas. GHPick reverses that workflow: start from the geometry […]
Democratizing stereotomic construction through AR technologies
A reusable mold methodology to the production of customized voussoirs using HoloLens Mass customizing of building components allows new conditions to explore aesthetic and sustainability in architecture. However, such possibilities tend to require the use of expensive and heavy digital fabrication machinery, which is mostly available in the most regions on the planet. In this […]

All content © Copyright 2026 by Pedro de Azambuja Varela.
Subscribe to RSS Feed