algorithmic modeling for Rhino
Exporting IFC BIM to Archicad, Revit, Microstation, Digital Project, Tekla ......
Anyone generating and exploring architectural projects in Grasshopper might be very interested in the latest development project of Geometry Gym.
I've been enabling BIM extraction from Grasshopper using the neutral BIM format IFC (Industry Foundation Class).
It's still very much work in progress, but already it demonstrates the power of this functionality, and it can enable parametric or generative Architectural design without having to remodel everything from scratch in an alternate CAD program for detailed design.
I'm still rapidly developing and releasing new builds with new features and capabilities, but if you wish to give it a try and it's not yet capable of representing the project you wish, email me or post here and I'll make it priority on my to do list.
There's still work in identifying what exactly each other program will identify and accept, for example many nurbs surfaces will have to me "meshed" to faceted polysurface (even simple booleans it seems). When IFC2x4 is released next year, it will include NURBs which will be fantastic (but interesting to see the response of programs that aren't capable of nurbs). When I enable IFC2x4 (hopefully soon) it will ease the grasshopper generation process, at the moment you have to use specific IFC components to do operations like boolean, extrude etc in a way consistent with IFC specification.
There are some free viewers like Nemetschek, Solibri and Constructivity that can visualize IFC models.
You can watch a youTube instruction video for the above image and download the files at my blog, http://geometrygym.blogspot.com and download the plugin from http://www.geometrygym.com
Installation instructions for getting started are here: http://www.grasshopper3d.com/group/geometrygym/forum/topics/install...
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Replies to This Discussion
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Permalink Reply by michaeldrobnik on
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Hi,
that's extremly useful! Looking forward to test it -
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Permalink Reply by Jon Mirtschin on
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Great, I look forward to helping you both with getting started.
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Permalink Reply by Chris Hanley on
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This is really great work! Have you heard of any IFC specifications for "site" elements being developed?
As a side note, we just got a beta release of ACAD 2012, (codename IronMan), and were surprised to find NURBS surfaces! We'll see what happens.....Presumably that will extend to other autodesk products in the near future. -
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When you say site elements, do you mean "buildings" as in overall mass shapes so you can define a city block or greater? I'll take a look in IFC2x4 as it has expanded the element types a lot.
If IronMan or any other program can already read IFC2x4, I'm keen to start testing Nurbs exporting. The constructivity viewer states it is IFC2x4 enabled, I haven't had a chance to test it yet. -
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sorry for the ambiguity regarding "site" elements. As landscape architects, we are eager to see classifications to hold information regarding soil profiles, paving systems, landscape elements over structure, etc...
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Sounds reasonable, but I just had a look at IFC2x4 and sorry to say doesn't seem to add new types to cover those sorts of aspects....
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as of now, we are looking at using IfcRelContainedInSpatialStructure or ifc slab as a workaround.
Thanks for looking though! -
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Hi All,
Some new examples of shape representations from Grasshopper to IFC.
http://geometrygym.blogspot.com Download the models and try for yourself.
Download the latest version from http://www.geometrygym.com/downloads
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New features added to Geometry Gym IFC plugin for Grasshopper and Rhino. You can now import existing IFC data files into Grasshopper (more improvements on visualization coming soon). There's also specific components for tagging objects as slabs, walls, stairs, beams etc. Download from http://www.geometrygym.com/downloads and sample models at http://geometrygym.blogspot.com
Priority will be given to new features requested by users, please keep sending them through.
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A further plugin update with some new IFC shape representations including sweep, revolutions and sectioned spines (similar to loft) Sample models can be found at http://geoemtrgym.blogspot.com
I'll soon post some new examples for planning including measuring floor areas and similar property sets.
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