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本文以视线与立方体可见的三个棱面形成的两个对应平行的三面角关系，来求解以消失点三角形作倾斜透视的基本原理。应用此法作图简便、易于掌握。
In this paper, two corresponding parallel trihedrals formed by the three facets visible from the cube and the cube are used to solve the basic principle of tilting the vanishing point triangle. The application of this method is simple and easy to master.