特别是EE样条曲线段仅与三个相邻的控制顶点有关,所以它具有很好的局部独立性,便于在设计时进行局部修改;
It is most outsdanding that since a segment of EE spline curve has to do with only three near control points, it has minute local independent property.
在设计控件与服务引擎时更加注重他们的独立性架构,充分利用观察者设计模式,使得项目具有灵活的扩展性。
Taking into account independence between modules for further extension, this project makes full use of the observation pattern in control and service engines design.
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