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Ladybug: A Parametric Environmental Plugin For Grasshopper To Help Designers Create An Environmentally-conscious Design
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2013
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EngineeringEnvironmental DesignGreen BuildingEnvironmental PlanningSocial SciencesSustainable DesignGenerative DesignSystems EngineeringEnvironmentally-conscious DesignEngineered EnvironmentDesign ScienceModeling And SimulationEco-designDesignHigh Performance DesignComputer EngineeringHuman-centered DesignDesigners CreateSoftware DesignParametric ToolsArchitectural DesignParametric Environmental PluginDesign ThinkingSustainabilityGrasshopper Allows
High‑performance architectural design increasingly relies on environmental analysis tools, and while Rhino/Grasshopper is widely used and hosts many plugins, Ladybug offers unique advantages not found in existing plugins. Ladybug imports EPW weather files into Grasshopper, delivers interactive 2D/3D graphics, automates calculations with EnergyPlus, Radiance, and Daysim, and integrates with Grasshopper’s parametric tools for instant, customizable feedback, all as a free, open‑source plugin.
As high performance design is becoming more desirable in the field of architecture, the need for supporting architects with environmental analysis tools is also growing. Rhino/Grasshopper is one of the most widely used platforms that are used by designers today. There are already a number of environmental plugins developed for Rhino/Grasshopper. However, Ladybug offers several advantages that are currently not offered by existing Rhino/Grasshopper related environmental design plugins. Ladybug imports standard EnergyPlus Weather files (.EPW) in Grasshopper and provides a variety of 2D and 3D designer-friendly interactive graphics to support the decision-making process during the initial stages of design. It also simplifies the process of analysis, automates and expedites the calculations, and provides easy to understand graphical visualizations in the 3D modeling interface of Rhino/Grasshopper. It also allows users to work with validated energy and daylighting engines such as EnergyPlus, Radiance and Daysim. Integration with the parametric tools of grasshopper allows for almost instantaneous feedback on design modifications, and as it runs within the design environment, the information and analysis is interactive. The development is a free and open source; users can customize the tool based on their needs and contribute to the source code.