General calculation method of side pile coordinates in comprehensive curves based on coordinate transformation
In order to facilitate the use of the measurement control point as the measurement basis of the line engineering construction,it is necessary to convert the construction coordinates into the measurement coordinates. In this paper,the coordinate transformation method and engineering examples were used to compare the coordinate calculation of the side piles in comprehensive curves with different directions,and the general formula for the measurement coordinate calculation of the middle side piles at any point on the comprehensive curve was derived. Through practice,the results calculated using this general formula are accurate and reliable. For beginners in surveying and mapping and related majors and front-line technicians of engineering practice,it provides a simple,intuitive,and easy-to-understand theoretical learning reference of the coordinate calculation of side piles in comprehensive curves and the application basis of engineering practice.
comprehensive curvemiddle side pilemeasurement coordinategeneral formulaquadrantcoordinate transformation