set angle tangent of polyline vertex

I am trying to set angle to polyline vertex

using pedit then edit - tangent the temp arrow drawn to show angle direction but nothing changed any reason for that please help

i am using autocad 2013

Could you post a graphic, or the .dwg?

Are you de-curving the polyline before you set the Tangent at a vertex?

Anyway, you have to Fit the curve to make this tangent effective.

may i was not clear the polyline i used have a width ex 5 units so i want to set angle to start point vertex instead of perpendicular angle

Your words alone do not describe the problem. Let us all understand when you post a picture of what you want to do, and post the drawing (or the essential part of it) that you are using.

here is a shot picture

That probably isn't possible with a polyline. I think you have to "cap" the end of the polyline with another object.

You are not using the Pedit command properly. The Tangent option applies to curves. Your requirement has nothing to do with curves.

The only way to do this is to use something like creating a pline pattern and a hatch. Its complex and would be user specific in this case parallel to a line. I have code but I can not post for copyrite reasons.

Do two offsets of the pline

add a offset to be trim line

trim at plines and line

close other end then hatch