Draw slop lines that express inclined surface
 
    File name : SLOPL.LSP

  Select two lines(p1,p2), and Enter number of division then Program draws lines between two lines. 
  Even though the length of the two lines is different It is possible. 
 
   사용예
  Select first line: {p1}       [Select first line]
  Select second line: {p2}      [Select second line]
  Divide number?: 5    [Enter number of division between two lines]