CAD using preference compared to hand drafting in architectural working drawings coursework

Recognition and Modeling of Architectural Objects from Architectural CAD Drawings

Recently in the eld of building CAD, research and development in CAD and data sharing among CAD tools has introduced object-oriented technology. This technology has brought object-oriented CAD tools that allow users to designing buildings by means of architectural objects and the standard data speci cation IFC (Industry Foundation Classes), which is involved in the architectural CALS (Commerce ...

Logical Representations in Drafting and CAD Systems

In this paper we present a logical language for representing and reasoning about drawings in the context of interactive computer graphics. We discuss the motivation for this kind of representation in graphics systems and its applications to geometric reasoning and constraint satisfaction. A formal deenition of the language and its interpretation process is presented and illustrated. The theoret...

Using CAD Drawings for Robot Navigation

1 This work has taken place in the Intelligent Robotics Lab at the Artificial Intelligence Laboratory, The University of Texas at Austin. Research of the Intelligent Robotics lab is supported in part by NSF grants IRI-9504138 and CDA 9617327, and by funding from Tivoli Corporation. Abstract Exploration and navigation of an environment by a robot usually involves the steps of mapping, localizati...

ANNEXTURE 1 CAD Drawings

Application of Deformable Template Matching to Symbol Recognition in Hand-written Architectural Drawings

We propose to use deformable template matching as a new approach to recognise characters and lineal symbols in hand-written line drawings, instead of traditional methods based on vectorization and feature extraction. Bayesian formulation of the deformable template matching allows combining fidelity to the ideal shape of the symbol with maximum flexibility to get the best fit to the input image....