Many formats accepted : [ (10;13) , (100;103) , (-100;-103) ] [ [10;13] , [100;103] , [-100;-103] ] 10,13 ; 100,103 ; -100,-103 10,13 , 100,103 , -100,-103 10 13 100 103 -100 -103 Polygon : Point001 : x1= 010 , y1= 013 Point002 : x2= 100 , y2= 103 Point003 : x3=-100 , y3=-103 Many formats accepted : [ (Xi , Yi) , ... , (Xj , Yj) ] [ [Xi , Yi] , ... , [Xj , Yj] ] Xi,Yi ; ... ; Xj,Yj Xi,Yi , ... , Xj,Yj Xi Yi ... Xj Yj ...
dx
dy   Try keep nb length