| 摘要 |
PURPOSE:To execute at high speed and correctly the collective calculation between solids containing a guadratic surface with a hole and a boundary by sorting an intersecting point (interference point) train by angle, and generating conic sections between the intersection point trains, and obtaining the conic section positioned inside both the boundaries of the quadratic surface and a plane whose interference line is sought from among these conic sections. CONSTITUTION:In the case where the interference line between the quadratic surface and the plane having the holes and the boundaries respectively is generated, the intersec tion point (interference point) trains of those are sorted by the angle, and the conic sections are generated between the intersection point trains, and the conic section positioned inside both the boundaries of the quadratic surface and the plane whose interference line is sought is obtained from among these conic sections. For instance, the curved surface A (a to d) of a cone is the quadratic surface, and the hole B (e to h) is made at its central part, and the hole D (m to p) is made at the central part of the plane C (i to l) of a cube. When such the solids are made to interest each other, the interference line is formed between Q and R and between S and T as shown in a figure. Thus, the collective calculation between the solids containing the quadratic surface with the hole and the boundary is executed at high speed and an addition, correctly. |
