lisp for half-carry of a polylinea

[Morena]

hello to everyone, I'm looking for a x way to create blocks at the center of a polyline. from those blocks/points I should have coordinates x be able to extract them in exel... Do you know any system?
thanks good work:tongue:

 

[Tristan]

you could use the split command to find the halfway points and with extinct create the xls file. are so many polylines?

 

[Morena]

so I need a semi-automatic command. I have already tried to make point- divide in 2 etc.. but it's not good xké finds me half the length of the polylinea. instead I need all sides, as if you draw a triangle.. I need the center of the three sides

 

[GP.]

attach a dwg with poly and block (if it is always the same).