Draw slope ratio
 
  File name : TRI.LSP

  Slop of under line of coping, slop of bented rebar etc. This program draw slop mark of triangle. 
  You can select two case Vertical  is 1 or Horizontal is 1.
 
  Example
  Pick a Line: {P1} [Select a inclined line]
  Pick insert point: {P2} [Pick a point that is insertion point of Triangle Mark. 
                              Insertion point is center of inclined line of triangle]
  Which side is 1 (Horizontal/<Vertical>):  [Select Vertica is 1 or Horizontal is 1
                                                       default: Vertical=1]