运用曲面拼接思想三维造型

为了构造复杂、形状和边界不规则的三维模型，运用三角曲面光滑拼接条件，通过引入参数确定控制点，构造出三角域上的2次B-B曲面，保证相邻曲面之间达到一定的光滑拼接，并且修改其中参数可改变拼接曲面的形状，结尾构造出可成为工艺品或标志建筑物的三维模型。

Three-dimensional Modeling by Using the Idea of Surface Connection

To construct complex three-dimensional modeling with irregular borders and shapes, make use of the qualification of triangle surface smooth connection, determine the control points by introducing parameters, construct a B-B surface of 2 degree on triangular .Ensure smooth connection to a certain between adjacent surfaces , and modify the parameters of which can change the shape of connective surfaces, at the end of the paper ,the craft and the sign of three-dimensional model of buildings can be constructed.