Octahedral and icosahedral tessellations work well and are notvery difficult to implement.
八面体和二十面体的三角化效果不错,而且也不难实现.
An octahedral tessellation approximates a spherewith an octahedron whose vertices are all on the unIt'sphere.
八面体三角化把球面近似于一个顶点在单位球上的八面体.
But for sulphur - sensitized emulsion, the developing centres formed preferentially on the edge of octahedral grain.
未敏化乳剂的显影灰雾中心在颗粒表面上的分布是随机的,而硫敏化乳剂的显影灰雾中心则优先在八面体的棱上生成.