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GSA-Grasshopper release notes

Build 1.5.0​

October 2024

GSA-Grasshopper 1.5.0 adds footfall analysis task and 2d Load Panels from polyline

Features​

  • Footfall Analysis Task: You can now set up a Footfall Analysis Task (requires the model to include a Modal).
  • 2D Load Panels: Added support for creating 2D load panels.
  • 2D Property with One-Way and Two-Way Options: New options for 2D property definitions include One-Way and Two-Way. Legacy options will now trigger a warning, and we strongly encourage switching to the new options.
  • Infinity and NaN in Results: Added support for infinity and NaN values in result sets.

Fixes​

  • Version Update Prompt: The plugin now prompts users to update GSA if an outdated version is detected.
  • Signed Support DLLs: DLLs are now signed to help reduce conflicts with other libraries.
  • Grid Surface Element List Saving: Fixed an issue where the GridSurface element list was not being properly saved in the GSA model.

Build 1.4.0​

July 2024

GSA-Grasshopper 1.4.0 allow adding static P-delta analysis task and includes smaller bugfixes.

Features​

  • Analysis Task A static P-delta analysis task can be created through the analysis task component.
  • Result Diagram The result diagram component can now plot displacement diagrams in Rhino.
  • Model Geometry The Get Model Geometry component is now able to display the assembly geometry in Rhino.
  • It is now possible to open existing GSA models having polylines referenced in grid area loads. GSA-GH will identify loads applied via polylines, and the polylines will be available when the model is reopened in GSA

Fixes​

  • The preview of 3D-deformed sections is corrected for imperial units.

Build 1.3.0​

April 2024

GSA-Grasshopper 1.3.0 introduces results for Steel Utilisations and Assemblies.

Features​

Fixes​

  • Issue when creating elements from members with certain model geometry and coincident nodes
  • Create Model check box expires downstream script.
  • Default analysis tasks contain correct load case names.
  • Search in Create Profile component returns expected results.
  • Viewing results in a model with dummy elements
  • Output names of Get Model Loads component are correct.
  • Existing grid planes show at the correct elevation.
  • Contour 1D Result component uses correct element/member ID.
  • 1D member loading using lists correctly.
  • Issue with case filter list for Load Diagrams component

Build 1.2.0​

February 2024

GSA-Grasshopper 1.2.0 introduces Steel design, Assemblies and includes smaller bugfixes.

Features​

Fixes​

Build 1.1.0​

December 2023

GSA-Grasshopper 1.1.0 introduces spring properties and includes refactored results with speed improvements and the ability to get Max/Min.

Features​

Fixes​

  • Contour 1D results for a Combination Case of 1D Element Displacements are previously wrongly displayed in local axis, corrected to be transformed to global axis.
  • Select Result component Issue of crashing when toggling between Analysis and Combination Case with a CaseID that does not exist has been solved.
  • Edit 2D Element's topology output returns the entire list of node IDs instead of only the first two.

Build 1.0.0​

October 2023

Official release of GSA-Grasshopper plugin following an extended period of beta testing.

Features​

The GSA plugin enables computational design and automated workflows for structural engineers, utilising the powerful geometry engine in Rhino and the low-entry, visual scripting of Grasshopper.

Run GSA headless through the .NET API​

  • Run GSA.Inside.Grasshopper - and potentially extended to any program that can run Rhino.Inside.
  • Fast and responsive, utilising the speed of GSA's solver for real-time feedback.
  • No more interoperability; you are literally running GSA inside Rhino's process.

Work with existing files​

  • Not all team members required to know how to use Grasshopper.
  • Share GSA files (.gwb) created parametrically in Grasshopper with colleagues for checking or further work.
  • Open existing GSA files (.gwb) inside Grasshopper.

Native Rhino/Grasshopper Geometry support​

  • Use all built-in Grasshopper components for geometry transformations, including: move, mirror, morph, array, twist, offset, etc.
  • GSA-Grasshopper's custom parameters will convert (or cast) automatically to or from native Grasshopper parameters.
  • It is possible to "Bake" all GSA-Grasshopper parameters into Rhino
  • Additionally, you can preview 3D sections, applied loads and result diagrams from GSA inside Rhino.

Meshing​

  • Utilise GSA's powerful meshing capabilities inside Grasshopper; GSA-Grasshopper uses one of the fastest and most robust FE meshing algorithms on the market.
  • Create your geometry using Members and let GSA manage intersections and the creation of the analytical model.

3D Sections​

  • Preview 3D sections of the GSA model inside Rhino

Results​

  • Visualise results within Rhino/Grasshopper to check your design, or use it to automate your engineering workflow.
  • Use GSA's powerful post-processing tools to create and retrieve results for load combinations.
  • Load and result diagrams and their values can be displayed and annotated directly in Rhino's viewport.

Easy handling of units​

  • All components and parameters are underpinned by units.
  • Convert to and from any relevant engineering units.
  • Based on opensource UnitsNet, and extended with engineering units by Oasys.

Fixes​

  • All reported and known issues from the beta testing period have been resolved.

General​

  • The plugin is distributed through Rhino Package Manager.
  • Rhino 6.27 or later is supported.
  • GSA-Grasshopper requires GSA 10.2 to run.