建立或新增由曲面邊界輪廓指定而來的曲面。邊界曲面使用來自各方向 (U 與 V 方向) 的曲線組來形成四邊的封閉曲面,並會有可指定邊界條件的選項;例如,相切配合和垂直於輪廓。

Similar to a weave of cloth, every surface is roughly rectangular. Surfaces have three directions: U, V, and Normal. The Boundary surface profiles U and V represent the X and Y directions of the surface, respectively.