Toward Creative 3D Modeling: an Architects' Sketches Study

This paper describes our methodology in providing designers with a new advanced 3D modeling Human-Computer Interaction. The main project - called GINA, a French acronym for Interactive and Natural Geometry - expect to introduce new intuitive and creative 3D modeling tools, relying on 2D perspective draw- ing reconstruction. We present here the user study we conducted and the implications of this study on the inter- face of GINA. Keywords: Architectural drawing, sketch, 3D modeling tools.