Tuesday, 24 April 2012

NURBS GH to Revit

Another example model for you to test (Inspired by Tim Meador's post on the Grasshopper Forum).  I've been enabling nurbs profile/perimeter exchange using the IFC2x4 format (status Candidate Release, anticipated to be approved late this year).

Here's the example Grasshopper model, and the IFC file.  You need to right click on the SSIBake component and check the IFC2x4 option. This should be sticky then for the model (I need to check why it sometimes reverts when reopening the model).

Note I'm yet to find other viewers/software that can interact with this version of IFC, so for the time being it's only useful for my Rhino/Revit developments.  I'm still implementing other aspects of IFC2x4 (which might still have subtle changes), so be careful as exported file might not always open in the future.  I'm presently implementing advanced breps, that should permit much smaller IFC file sizes (and avoid the implications of meshing objects).  Look forward to hearing comments and suggestions.

Friday, 13 April 2012

GeomGym Revit Addon importing IFC

Here's some sample models and an explanation/demonstration of the work I'm advancing to import IFC models into Revit.

You can test for yourself.  Here's the grasshopper files used in the demonstration and some example IFC output..  You need to download the latest plugins from http://www.geometrygym.com/downloads

Note I've only been working on the Revit addon over a period of 3 months compared to 22 months for the Rhino plugin (although I can reuse 80 to 90% of the same code) so I still need to enable many aspects of IFC file importing.  But I will prioritize any example models and requests that come from users, so please don't hesitate to ask.  I look forward to hearing from you.