Introduction - If you have any usage issues, please Google them yourself
Using the way that users control the positions of the points so as to draw the TIN under the rule of Delauny.Besides,it allows the users that call the txt file which records the information of the points(x,y coordinate),namely ,the read function.Last users can output the information for the TIN s every line start point and end point and k,b information(y=kx+b)