Introduction - If you have any usage issues, please Google them yourself
Contour data read function, the contour data to a text file. File Format: Line 1: Total number of data points, the first 2-n lines: The first point coordinates, after the first x y, separated by a space
Note: profile data file stored in the contour point, the start and end points are coincident, the starting point is stored twice, once starting end time. Obtaining profile data file contour total points