A Spatial Description Model and Utilities for an Intelligent CAD of Architectural Design

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1. It is not still common for designers to use three dimensional modeling system in their schematic design stages, because few commercial systems have succeeded in providing graphic objects and utilities that will well fit the process of designers' thought. To solve these problems there are three subjects in this study.2. First, reviewing relationship of visual representations that designers made and their thought, to propose a spatial description model that could well represent schematic design image and necessary utilities for a three dimensional modeling system.3. Second, to develop system that could record various designer's design decisions such as the meaning and the physical attributes of each modeling element, which could be referred in evaluating design and revising designed models in the later stage.4. Third, to develop system that could evaluate spatial structures and their architectural meaning that designed model inherits.5. The report consists of seven chapters beginning with the first chapter that summarized the background and the tasks of this study. Second chapter reports the proposed model for schematic design studies while the third chapter reports the model for behavioral simulation of designed models.6. The fourth chapter and a part of the second chapter report on the second subject, in which decisions made on the physical structure of designed models were dealt.7. The fifth chapter reports the SAL language developed for the third tasks. The sixth chapter reports the use of TMS algorithm that could support heuristically developing building plans of specific spatial structures.The seventh chapter discusses the achievements and future prospect of the studies.