Rebuild the curve with at least 6 control points. This is necessary to achieve the desired continuity when using surface from curve network or sweep 2 rails.
重建曲线至少有6个控制点。这是必要的，以实现理想的连续性当使用曲线表面从网络或扫描第2轨。
This paper puts forward the coordinate calculation method, which applys the optimization algorithm to compute the move distance of the current railway curve in order to rebuild the current curve.
提出了利用坐标法进行测设既有曲线并应用优化计算的原理进行既有曲线拨距计算。
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