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华中理工大学出版社1989年12月出版的《建筑图学》(袁齐家、沈本、李武生主编),标志着“画法几何与阴影透视”这一学科发展到了新的水平。要把三维的空间形象准确地表现在两维的画面上,就需运用“投影几何”,这是几何学的一个分支,也是工程制图的理论基础。前辈学者着重研究”投影几何”的纯几何学理论问题,功勋卓著。但限于当时条件,繁难的理论推导未能与复杂的
Huazhong University of Science and Technology Press published the “Architectural Graphology” (edited by Yuan Qijia, Shen Ben, and Li Wusheng) in December 1989, marking the development of the discipline of “drawing geometry and shadow perspective” to a new level. To accurately represent a three-dimensional spatial image on a two-dimensional screen, it is necessary to use “projection geometry,” which is a branch of geometry and the theoretical basis of engineering drawing. The senior scholars focused on the pure geometry theory of “projection geometry” and made outstanding achievements. However, limited by the prevailing conditions, the difficult theoretical derivation has not been complicated.