quartic implicit algebraic surface 四次隐式代数曲面
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This paper proposes a piecewise geometric approach to parametrize a kind of quartic implicit algebraic surface.
针对一类四次隐式代数曲面,提出一种基于分片的几何参数化方法。
It is proved that the intersecting line of the two curved surface is space curve, and the equation is quartic implicit function with one unknown.
论证了两曲面的交线为空间曲线,其方程为一元四次隐函数关系式;
The distance from 3-direction quartic box spline surface to the central triangular planar patch of its control net is investigated as well as its bound.
研究了三向四次箱样条曲面与控制网格中心三角平面片间的距离和该距离的界。
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