Method for calculating any line element coordinates of various lines

Abstract

The invention belongs to the technical field of line engineering construction, and particularly relates to a method for calculating any line element coordinates of various lines. The method comprises the following steps: S100, setting initial calculation parameters; s200, inputting line element related parameters; s300, inputting relevant parameters of a point to be solved; s400, calculating a tangent azimuth angle of a point to be solved; s500, respectively calculating tangent azimuth angles of n equal division points; s600, calculating the tangent azimuth angles of the 2n equal division points respectively; s700, calculating a middle pile coordinate corresponding to the to-be-solved point; s800, calculating coordinates of a point to be solved; and S900, outputting a calculation result and returning to the next to-be-solved point for calculation. According to the method, the precision of a line element coordinate calculation result is enhanced, the working efficiency is improved, and the conflict between the calculation precision and efficiency of unconventional curve arrangement data is solved.

Description

technical field [0001] The invention belongs to the technical field of line engineering construction, in particular to a method for calculating the coordinates of any line elements of various lines. Background technique [0002] Due to the constraints of topography, geology, technical conditions and the needs of economic development, the construction direction of various line projects must be constantly changed. In order to keep the line smooth, a curve must be used to connect two adjacent straight lines that change direction. This kind of curve is called a plane curve. Common line plane curves are divided into two types: one is the direct connection between the circular curve and the front and rear straight lines, which is mainly used on special railway lines and lines with low driving speed; Easing the transition of the curve, so that the circular curve smoothly connects with the front and rear straight lines. The above two types of curves are conventional curves, and th...

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Problems solved by technology

[0003] In engineering applications such as ramps and overpasses, in order to achieve the purpose of adjusting the direction, position and height of the line within a short distance, an irregular plane composed of various line elements such as straight lines, circular curves, transitional curves, and oval curves is often set. For line element layout, if the formula is not selected properly, large calculation errors will occur. Even if the tangent support formula can be expanded in multiple ways, the accuracy and efficiency of this type of line calculation and lofting will be uneven.

The complex Simpson formula is a calculation method that is widely used in this field, but this formula involves the need to divide a single line element into n equal parts and calculate them separately. In terms of the value of n, if the value is too small, it will affect the coordinates of the line elements. Calculation accuracy, if the value is too large, it will lead to many calculation steps, heavy workload, data reliability and operation efficiency cannot be effectively guaranteed

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