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CRITIQUING FREEHAND SKETCHING: A Computational Tool for Design Evaluation
    Design Evaluator is a computational tool to support design reasoning. In this paper we describe how architects reason about spatial relations, functional concerns and 3D space with drawings. Design Evaluator is a freehand sketching environment that offers critiquing of circulation paths and arrangement of functions in a floor plan diagram. The critiques are presented in the forms of text, diagrammatic annotation and 3D VRML.