Create lisp code for text above polyline

[karfung]

Hi Team, 
I wish to create a Lisp code that has the following conditions, 

1). Create a mtext above the new draw polyline. The mtext shall be created in every segment of the polyline. The mtext to follows the direction of the polyline. 

2). The mtext to be content "BD/1:200/3.0m" above the polyline. The 3.0m is the variable that refers to the length of the particular polyline segment length. 

3). The mtext to be layer SNA-TXT and text height 1000. 

 

Kindly advise the lisp code above. Thanks.