Next, in the interior of the patches, surface fitting points and cross boundary derivatives are estimated from the reference curves by constructing virtual iso-parametric curves.
其次，在曲面片内部，曲面拟合点和边界方向导数可以从参考曲线中通过构建虚拟等参线的方法得到。
One general road model is adopted, and based on the chain code and this road model, one fitting algorithm of road boundary is designed.
采用了一种通用的道路模型，然后基于链码以及该道路模型，设计了一种有效的道路边界拟合方法。
One road model is built for road boundary, and a optimal fitting with multiple line segment is proposed.
对于道路边界表示问题，建立了一种道路模型，并提出了一种基于最优分段线段的道路边界拟合算法。
In this paper a fitting decomposition method is proposed and the principles for construe - ting equations which characterize the absorbing boundary conditions is discussed for wave equation migration.
本文讨论了在波动方程偏移问题中构造吸收边界条件方程的原则，并提出了求解具有吸收边界条件的偏移问题的一种新方法——矩阵拟合分解方法。
In this paper a fitting decomposition method is proposed and the principles for construe - ting equations which characterize the absorbing boundary conditions is discussed for wave equation migration.
本文讨论了在波动方程偏移问题中构造吸收边界条件方程的原则，并提出了求解具有吸收边界条件的偏移问题的一种新方法——矩阵拟合分解方法。
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