| 词汇 | tetrahedra |
| 释义 | tetrahedra plural oftetrahedronspecialized Examples of tetrahedratetrahedra We normalize by scaling tetrahedra to unit diameter. In particular, the analysis is based on the singularities of these tetrahedra. Analysis that is based on the geometry of the tetrahedra have been also presented21 for a class of parallel manipulators with three legs. This section introduces polyhedra and studies the problem of how many tetrahedra are needed to mesh them. Another benefit of a mild weight assignment is that it does not drastically change the shape of triangles and tetrahedra. We do not consider tetrahedra with infinite elements, since they do not have a physical meaning. The facets for 1 or 5 last are tetrahedra. We will see later that meshes of tetrahedra with small ratio also have nice combinatorial properties, such as constant size vertex stars. The three steps tetrahedrize a bounded polyhedron with m segments using fewer than 28m2 tetrahedra. The same is not true for volumes of tetrahedra, which is why eliminating slivers is difficult. By considering the definition, singular tetrahedra have a great variety of forms. This iterative process stops when no more tetrahedra can be eliminated. On the other hand, the hidden triangles are common faces of two tetrahedra. This section looks at the various shapes tetrahedra can assume. Instead of bounding directly the number of unit volume tetrahedra with a common vertex or a common edge, we design a charging scheme. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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