ZHANG Gui-mei, LU Yu-ming. Solving graphic problems in descriptive geometry by using line secondary projection[J]. Journal of nanchang hangkong university(Natural science edition), 2002, 16(4): 51-54.
Citation: ZHANG Gui-mei, LU Yu-ming. Solving graphic problems in descriptive geometry by using line secondary projection[J]. Journal of nanchang hangkong university(Natural science edition), 2002, 16(4): 51-54.
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Solving graphic problems in descriptive geometry by using line secondary projection

    Abstract
  • In engineering drawing,it is always inconvenient for orthographic projection to solve some measurement and orientation problems.In order to simplify drawing,this paper introduced a method of line secondary projection.It has been proved that the presented method is very simple and effective.
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