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Libra
ADDON. Version 1.1.0. Released on 01-Oct-2023. Provides 35 components. Created by Ioannis Mirtsopoulos. Features 0 video tutorials.
Libra is a Grasshopper plug-in which implements a topology grammar for generating structural topologies. Starting from an incomplete network, namely (a) the geometric boundaries that a network grows into and (b) the applied external forces, Libra operates an incremental transformative process that allows the transition to a complete network. In other words, the incremental elimination of interim forces in the network. At every intermediate step the network is in static equilibrium (interim when interim forces are still present, or global when no interim forces exist).
Model
| Model Export to Illustrator (animated) (ModelExport) Model export to Adobe Illustrator | |
| Model Topology (ModelTopology) Model Topology As Matrix | |
| Select Bar (SelectBar) Select a bar | |
| Visualize Transformations (VisualizeTransformationations) Visualize an intermediate generation step and animate using t param | |
| Construct Model (ConstructModel) Construct an interim model with domain (geometric boundaries) | |
| Deconstruct Model (DeconstructModel) Deconstruct the model into its components | |
| Model Export to Illustrator (ModelExport) Model export to Adobe Illustrator | |
| Model Geometry (ModelGeometry) Extract the model geometry | |
| Model History (ModelHistory) Extract transformation history | |
| Model Metrics (text) (ModelMetrics) The model metrics as text | |
| Model Undo (UndoModel) Undo transformations on model | |
| Model Metrics (tabular) (ModelMetricsCsv) Extract infor regarding how the model performs | |
| Model Metrics (spider graph) (ModelSpiderGraph) The model metrics represented as spider graph | |
| Model History (tabular) (ModelHistoryCsv) Extract transformation history | |
| Rebuild Model (RebuildModel) Rebuilds a model from a .csv file | |
| Select Force (SelectForce) Retrieves a force from the Form Diagram |
Transform
| Apply Transformation Policy (Transform) Apply transformation policy onto an interim model | |
| Construct Node Placement Rule (NodePRule) Construct a node placement rule | |
| Construct Transformation Policy (Policy) Construct a transformation policy | |
| Construct Transformation Policy (fast) (PolicyFast) Construct a fast transformation policy | |
| Construct Force Indeterminacies Rule (ForceIRule) Construct a force indeterminacies rule | |
| Construct Force Selection Rule (ForceSRule) Construct a force selection rule | |
| Construct Transformation Constraint (Constraint) Construct a transformation constraint | |
| Automatic Placement (AutomaticPlacement) Automatic placement of the necessary components to construct a policy |
Forces
| Construct Force Set (ConstructForceSet) Select forces and construct a Monomial/Binomial/Trinomial | |
| Deconstruct Force Set (DeconstructForceSet) Deconstruct force set | |
| Force Set Domains (ForceSetDomains) Get the domains of a force set | |
| Visualize Force Set (VisualizeForceSet) Visualize a force set by highlighting its forces |
Domain
| Construct Domain (ConstructDomain) Construct a domain of any type | |
| Deconstruct Domain (DeconstructDomain) Deconstruct a domain of any type | |
| Visualize Domain (VisualizeDomain) Visualize a domain |
IsoVist
| Convex Hull in 2D (ConvexHull2D) Calculate the convex hull in 2D | |
| IsoVist 2D (IsoVist2D) Calculate the isovist polygon |
Xploration
| Design Space Exploration (DSE+IGA) Equilibrium-based Design Space Exploration (DSE) through policies, rules and interactive genetic algorithms(IGA) | |
| Design Space Exploration Reader (DSEReader) Design Space Exploration (DSE) Reader component to retrieve every single design candidate that was generated |
Site design © Robin Rodricks.
Libra and associated data © 2025 Ioannis Mirtsopoulos.
Rhinoceros and Grasshopper are registered trademarks of Robert McNeel & Associates.
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