A research database for new federal courthouses

CourtsWeb is the research data­base for new fed­eral cour­t­houses devel­oped by Geor­gia Tech Research Insti­tute through a GSA — U.S. Courts joint ven­ture. The appli­ca­tion is built upon a data­base with exten­sive doc­u­men­ta­tion of recent cour­t­houses includ­ing text, spread­sheets, pho­tos, panoramic images, dia­grams, draw­ings, and inter­ac­tive plans. There are pow­er­ful oper­a­tions for the descrip­tion and evaluation […]

Screenshot of Autodesk App Store

Autodesk Apps

Isovist, Pathfinder and GRAPPA

Finally we have found time to sit down and wrap-up sev­eral projects that have been lying around. The projects mostly evolved out of exper­i­ments and have now been brushed up and given an inter­face. The have now been pub­lished in the Autodesk app store. For Auto­CAD and Auto­CAD Archi­tec­ture there are apps to gen­er­ate Iso­vists and to […]



Web-based shape grammar interpreter

A web inter­face for the GRAPE library. GRAPE is a shape gram­mar library and this inter­face offers a pre­view with two rule sets. The first rule set show­cases some para­met­ric rules based on max­i­mal lines and sup­port­ing emer­gence. The sec­ond rule set is an imple­men­ta­tion of the Pal­la­dian gram­mar (Stiny and Mitchell, 1978). Cur­rently not […]

Derivation of a square theme. Using one copy and one move rule.


Swing like an ape from shape to shape

GRAPE (GRaph shAPE) is a shape gram­mar edi­tor based on graph gram­mars. It cur­rently uti­lizes the pack­age GrGen.NET and is imple­mented as plug-ins for Rhino 5 and Auto­CAD 2011. Hard­coded rules can sup­port para­met­ric shape gram­mars in U13 x V03. The visual edi­tor, which is a more recent addi­tion sup­ports para­met­ric shape gram­mars in U13GRAPE […]

A montage showing the Revit Add-In and several steps of a derivation


Transforming graphs to Palladian villas

An imple­men­ta­tion of the “Pal­la­dian Gram­mar” by Stiny and Mitchell as an Add-In for Autodesk Revit 2011.

Sieve 3


Partial lattices of two- and three-dimensional shapes with an n-fold symmetry axis

The Sieve is a Java applet, which can be used to learn about and ana­lyze point sym­me­tries. It started of with just the par­tial lat­tices of two-dimensional point sym­me­tries (G02), grad­u­ally more infor­ma­tion and dimen­sions where added. Cur­rently it shows for G02 and G03 the par­tial lat­tice, var­i­ous nam­ing con­ven­tions, the cycle index and a visual […]


Combining Triples

A graph gram­mar for the gen­er­a­tion of topolo­gies for the U.S. fed­eral cour­t­house typol­ogy is intro­duced. Pos­si­ble con­fig­u­ra­tions are enu­mer­ated and a nomen­cla­ture is pro­posed. Embed­ded within a larger project on the analy­sis and gen­er­a­tive descrip­tion of U.S. fed­eral cour­t­houses, the aim of this task was to enu­mer­ate, gen­er­ate and name pos­si­ble topolo­gies for the […]

Comparing two floors on the coarsest resolution

Spatial Similarity Metrics

Com­par­ing space allo­ca­tion pro­grams com­pu­ta­tion­ally is a resource inten­sive task. This paper intro­duces a method which reduces the com­plex­ity of floor plan graphs to facil­i­tate the prob­lem. In a first step the nodes are labeled accord­ing to a laid out clas­si­fi­ca­tion scheme. This in its own right reduces the com­plex­ity of the com­par­i­son by introducing […]

Cover of the VIPA Report


VIrtual campus for virtual space design Provided for european Architects

Christoph Falkner and Thomas Grasl are part of  the project team  at the Vienna Uni­ver­sity of Tech­nol­ogy work­ing on the VIPA project, a transna­tional research project sup­ported by the Euro­pean Com­mu­nity. The objec­tive is the devel­op­ment of a transna­tional vir­tual cam­pus con­tain­ing an e-learning and research plat­form for Euro­pean archi­tec­ture uni­ver­si­ties in the field of […]