采用SAX解析器与结构连接方法，对XML文档中所有已知节点与后兄弟节点进行精确匹配并输出。
The algorithm uses Simple API for XML(SAX) parser and structural join, matches and outputs all following-sibling nodes of the given nodes.
其关键点是导出了求估算步长的一个简单公式，从而很容易的由已知节点坐标求出到下一节点的坐标增量。
The key point of this method is that a simple formula has been derived for estimating step length. Therefore it is easy to find the unknown node coordinate from known one.
本文重点论述等间距直线逼近及过两已知节点与两节点半径均值圆弧拟合技术的基本原理以及误差分析方法。
This paper focuses on the presentation of the basic principles and error analysis of equal intervals linear approaching and average radius arc matching technique.
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