| 直线与缓和曲线斜交的直接解算法 |
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| 引用本文： | 覃辉.直线与缓和曲线斜交的直接解算法[J].测绘科学,2010,35(5):133-136,201. |
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| 作者姓名： | 覃辉 |
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| 作者单位： | 广东省科技干部学院建筑工程系,广东珠海,519090 |
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| 基金项目： | 广东省高等教育教学改革项目，"十一五"国家级规划教材建设项目 |
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| 摘 要： | 本文提出了缓和曲线的拟合圆弧的概念,首先确定直线与拟合圆弧的交点,将拟合圆弧的交点桩号作为直线与缓和曲线交点的初始桩号,算出其中桩坐标与走向方位角,再由初始交点向直线作垂线算出初始桩号的改正数,实现了交点桩号的直接解算。
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| 关 键 词： | 拟合圆弧 垂线方程 初始桩号改正数 fx-5800P编程计算器 |
Direct arithmetic of skew intersection of a given line and the designed spiral |
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| QIN Hui.Direct arithmetic of skew intersection of a given line and the designed spiral[J].Science of Surveying and Mapping,2010,35(5):133-136,201. |
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| Authors: | QIN Hui |
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| Abstract: | This paper introduced affinity arc which is very close to a designed spiral.First it confirmed the skew intersection of a given line and the arc,second calculated its mileage which is regarded as a preliminary mileage of an intersection of the line and the designed spiral,then worked out its coordinate and bearing of forward direction,at last acquired a corrective value of preliminary mileage by drawing a line perpendicular to the given line from the initial intersectional point,thus the exact mileage of the intersection on the spiral could be obtained immediately. |
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| Keywords: | affinity arc line equation perpendicular to a given line corrective value of the preliminary mileage of intersection fx-5800P programmable calculator |
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