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中文摘要：
根据非均匀α—B插值样条曲线的一般形式，结合非均匀α—B插值样条曲线的形状调配方法，产生了一种新方法来解决二维手绘草图的表示问题。在二维草图中，研究了基于非均匀α-B插值样条曲线的草图表示、草图生成、草图修改以及草图缩放的算法。这种表示方法模型统一，生成插值点的算法简单，适合分布式网络环境下的实时协作。表示后的草图缩放具有向量图缩放的优点，设计人员可以在缩放后的草图上进行形状调配。
英文摘要：
Combining the basic form of non-uniform α-B interpolation spline with its shape control mechanics, a new approach was produced to solving the problem of representing 2D sketches. Based on non-uniform α-B interpolation spline representation, algorithms of 2D sketch representation, generation, modification and scale were studied and brought up. This representation method is a unified solution, and the interpolation points can easily be computed, so very suitable for designers to cooperate under distributing network environments. The sketch scale is of the same advantage as vector map, and designers can perform shape control on the scaled sketch.
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