Road center line drawing method, electronic equipment, storage medium and system

Abstract

The invention provides a road center line drawing method. The method comprises the steps of obtaining curve data of an easement curve in a road center line, obtaining a to-be-drawn line length group and an offset angle group, wherein the to-be-drawn line length group comprises a plurality of different to-be-drawn line lengths; calculating a coordinate difference value according to the initial stage expansion item number, the preset stage expansion item number, the to-be-drawn line length and the deviation angle, judging whether the absolute value of the coordinate difference value is smaller than the calculation precision or not, if yes, taking the coordinate value as a drawing value, and if not, updating the initial stage expansion item number, and summarizing the drawing values to obtaina drawing value group containing a plurality of drawing values; and defining a drawing area on the road according to a preset starting point and the full-line length of the easement curve, drawing coordinate points in the drawing area according to the drawing value, and finally obtaining the road center line. According to the road center line drawing method provided by the invention, the drawingprecision of the road center line is improved.

Description

technical field [0001] The invention relates to the field of road design, in particular to a method for drawing a road centerline, an electronic device, a storage medium and a system. Background technique [0002] The direction and shape of the road centerline will be affected and restricted by factors such as terrain, surface features, hydrology, and geology. The line cannot be a straight line on the plane, but is composed of many straight and curved segments. This kind of curve is called a flat curve. The flat curves commonly used in railways and highways include straight lines, circular curves, transitional curves, turning back curves and oval curves. The centerline design of highways and ramps in our country is usually a clothoid, that is, a transitional curve. [0003] At present, in the process of drawing the center line of the road, the calculation of the coordinates of any point on the transition curve can meet the accuracy of conventional route calculation, but be...

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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, one of the purposes of the present invention is to provide a method for drawing the road centerline, which can solve the problem of transitional curves due to the increasingly complex routes designed today, such as ramps, and the insufficient number of items in the series expansion. The problem that the accuracy deviation is large or even the calculation is wrong, which leads to the wrong drawing of the road center line

[0005] The second object of the present invention is to provide an electronic device, which can solve the problem of the road center line due to the more complex lines designed today, such as ramps, and the insufficient number of items in the series expansion will lead to large deviations in the accuracy of the transitional curve or even calculation errors. The drawing error problem

[0006] The third object of the present invention is to provide a computer-readable storage medium, which can solve the problem that due to the more complex lines designed today, such as ramps, the insufficient number of items in the series expansion will lead to large deviations in the accuracy of the transitional curve or even calculation errors. An issue that caused road centerlines to be drawn incorrectly

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