hi,friends ,the problem i meet

i got a closed curve "y",get the "y" center point "c",connect the "c"and the points i pick named"x",get the lines named "d".

problem : why in python editor,there is one line in "d",as the show in red box,But there is serveral lines in battery "d",as shown in blue box. And there are several lines in battery "out",but they are tree date ,totally diffrient from python editer and "d" in battery.

Thanke you .