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      VISUAL PROGRAMMING FOR BUILDING INFORMATION MODELING: ENERGY AND SHADING ANALYSIS CASE STUDIES

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          INTRODUCTION

          Although visual programming is being broadly implemented in other disciplines, it has only relatively recently become an important supplement to three-dimensional modeling programs in the architecture, engineering, and construction industry. Currently, Grasshopper in conjunction with Rhino is a leading example of a visual programming environment that is strongly supported by a user community that is developing additional functionality, but Grasshopper does not yet work directly with building information modeling (BIM) software. Dynamo is relatively new, but shows considerable promise in becoming a constructive tool to complement BIM, 3D modeling, and analysis programs because it includes parametric geometries and works with Revit, a leading BIM software program. Three case studies are described: extensibility of Dynamo through the use of a building energy simulation package, controlling a virtual model's response through light level sensors, and interactively updating shading components for a building facade based on solar angles. They demonstrate that one can work directly within building information models (BIM) using a visual programming language through updating component parameters. These case studies demonstrate the feasibility of a workflow for sustainable design simulations that is different than that more commonly used -- having a separation between design and analysis models and using a neutral file format exchange such as IFC or gbXML to transfer data. As visual programming languages are still a bit uncommon in the building industry, a short background is provided to place them within the tool set of other customizable tools that designers have been developing.

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          Most cited references 21

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          “Integration of environmental sensors with BIM: case studies using Arduino, Dynamo, and the Revit API,” “Integración de sensores medioambientales con BIM: casos de estudio usando Arduino, Dynamo, y Revit API.”

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            “Parametric BIM as a generative design tool,”

             A. Zarzycki (2012)
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              “Parametric spatial models for energy analysis in the early design stages,”

               W. Jabi (2014)
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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Fall 2015
                : 10
                : 4
                : 28-43
                Author notes

                1. University of Southern California, School of Architecture, Watt Hall #204, Los Angeles, CA 90089-0291, kensek@ 123456usc.edu , 213-740-2081

                Article
                jgb.10.4.28
                10.3992/jgb.10.4.28
                ©2015 by College Publishing. All rights reserved.

                Volumes 1-10 of JOGB are open access and do not require permission for use, though proper citation should be given. To view the licenses, visit https://creativecommons.org/licenses/by-nc/4.0/

                Page count
                Pages: 16
                Product
                Categories
                INDUSTRY CORNER

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