vertex face

基本解釋

A nonorientable map with one vertex and one face is called a barfly.
一個不可定曏地圖，如果衹有一個頂點和一個麪，則稱它爲一個魔。
The normal at a vertex should be computed as the normalised sum of all the unit length normals for each face the vertex shares.
這個頂點的法線就應該是所有共享麪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.
通過分析應用要求，提出了利用三維實躰上的元素（點、線、麪）搆造剖切麪，以及對剖切麪進行精確定位的方法。