Programming and scripting can be used to activate a 3D parametric model to create a more intelligent and flexible building information model. There has been a trend in the building industry towards the use of visual s...Programming and scripting can be used to activate a 3D parametric model to create a more intelligent and flexible building information model. There has been a trend in the building industry towards the use of visual scripting that allow users to create customized, flexible, and powerful programs without having to first learn how to write traditional code. Using visual scripting, users graphically interact with program elements instead of typing lines of text-based code. Nodes are created and virtually wired together;they can be numbers, sliders for adjusting values, operators and functions, list manipulation tools, graphic creators, and other types. Text based coding programs such as Python can also be used for the creation of custom nodes when greater flexibility is desired. Examples from professional firms include scripts that help automate work in the office to increase efficiency and accuracy (e.g. create escape routes, renumber rooms by levels, create documentation), assist in form generation (e.g. parametric design of metal panels, rebar generation, coordination between Revit and Rhino), analyze BIM files (e.g. terminal airflow, visual loads and capacity), and provide analysis results (e.g. daylighting, thermal comfort, window optimization). One can learn the basic steps of learning a visual programming language through the use of Dynamo within Autodesk Revit. The example used is for a façade component that changes based on the sun’s altitude.展开更多
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,engi...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 geom-etries and works with Revit,a leading BIM software program.Three case studies are described:extensibility of Dynamo through the use of a building energy simu-lation 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 sustain-able 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.展开更多
Green buildings should respect nature and endeavor to mitigate harmful effects to the environment and occupants.This is often interpreted as creating sustain-able sites,consuming less energy and water,reusing material...Green buildings should respect nature and endeavor to mitigate harmful effects to the environment and occupants.This is often interpreted as creating sustain-able sites,consuming less energy and water,reusing materials,and providing excel-lent indoor environmental quality.Environmentally friendly buildings should also consider literally the impact that they have on birds,millions of them.A major factor in bird collisions with buildings is the choice of building materials.These choices are usually made by the architect who may not be aware of the issue or may be looking for guidance from certification programs such as LEED.As a proof of concept for an educational tool,we developed a software-assisted approach to characterize whether a proposed building design would earn a point for the LEED Pilot Credit 55:Avoiding Bird Collisions.Using the visual programming language Dynamo with the common building information modeling software Revit,we automated the assessment of designs.The approach depends on parameters that incorporate assessments of bird threat for façade materials,analyzes building geom-etry relative to materials,and processes user input on building operation to produce the assessment.展开更多
文摘Programming and scripting can be used to activate a 3D parametric model to create a more intelligent and flexible building information model. There has been a trend in the building industry towards the use of visual scripting that allow users to create customized, flexible, and powerful programs without having to first learn how to write traditional code. Using visual scripting, users graphically interact with program elements instead of typing lines of text-based code. Nodes are created and virtually wired together;they can be numbers, sliders for adjusting values, operators and functions, list manipulation tools, graphic creators, and other types. Text based coding programs such as Python can also be used for the creation of custom nodes when greater flexibility is desired. Examples from professional firms include scripts that help automate work in the office to increase efficiency and accuracy (e.g. create escape routes, renumber rooms by levels, create documentation), assist in form generation (e.g. parametric design of metal panels, rebar generation, coordination between Revit and Rhino), analyze BIM files (e.g. terminal airflow, visual loads and capacity), and provide analysis results (e.g. daylighting, thermal comfort, window optimization). One can learn the basic steps of learning a visual programming language through the use of Dynamo within Autodesk Revit. The example used is for a façade component that changes based on the sun’s altitude.
文摘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 geom-etries and works with Revit,a leading BIM software program.Three case studies are described:extensibility of Dynamo through the use of a building energy simu-lation 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 sustain-able 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.
文摘Green buildings should respect nature and endeavor to mitigate harmful effects to the environment and occupants.This is often interpreted as creating sustain-able sites,consuming less energy and water,reusing materials,and providing excel-lent indoor environmental quality.Environmentally friendly buildings should also consider literally the impact that they have on birds,millions of them.A major factor in bird collisions with buildings is the choice of building materials.These choices are usually made by the architect who may not be aware of the issue or may be looking for guidance from certification programs such as LEED.As a proof of concept for an educational tool,we developed a software-assisted approach to characterize whether a proposed building design would earn a point for the LEED Pilot Credit 55:Avoiding Bird Collisions.Using the visual programming language Dynamo with the common building information modeling software Revit,we automated the assessment of designs.The approach depends on parameters that incorporate assessments of bird threat for façade materials,analyzes building geom-etry relative to materials,and processes user input on building operation to produce the assessment.
