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The figure represents the intersection of two __________(a) concentric spheres(b) swimming flotation(c) tori(d) ringsI had been asked this question in an interview.Question is from Intersection of Surfaces in section Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing |
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Answer» CORRECT choice is (c) tori Explanation: The intersection curve of TWO polyhedrons is a polygon i.e. tori. The DISPLAY of a parametrically defined SURFACE is usually done by MAPPING a rectangular net into 3-space. The spatial quadrangles are nearly flat. So, for the intersection of two parametrically defined surfaces, the algorithm for the intersection of two polyhedrons can be used. |
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