反求车身外表面建模中的B样条曲面

B-spline Surface in Reverse Engineering of Body Model

在反求车身外表面建模中应用B样条曲面, 构造可为CAD软件识别的车身外表面四边形曲面片模型, 实现曲面片的连续、光顺拼接。以轿车为例, 应用该方法绘制了车身外表面图形, 对提高汽车领域的自由曲面NC加工具有一定的工程价值。

B-spline surface was used in the body modeling of reverse engineering,quadrilateral surface model that can be recognized by CAD was constructed,and sequence and smoothly merged surface was realized.As a study case,the body surface of the car was protracted by this technique.It is significant in improving the precision of NC machining for free surface of motor vehicles.