vertex face

基本解釋

A nonorientable map with one vertex and one face is called a barfly.
一個不可定向地圖，如果只有一個頂點(diǎn)和一個面，則稱它為一個魔。
The normal at a vertex should be computed as the normalised sum of all the unit length normals for each face the vertex shares.
這個頂點(diǎn)的法線就應(yīng)該是所有共享面法線的和在歸一化的結(jié)果。
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It is proposed that construct cutaway plane with elements on the 3D solid(vertex, edge and face). The methods for locate cutaway plane precisely are also explained.
通過分析應(yīng)用要求，提出了利用三維實(shí)體上的元素（點(diǎn)、線、面）構(gòu)造剖切面，以及對剖切面進(jìn)行精確定位的方法。