offset with reference point and change to hidden line

Hi all,

Please to help me to provide a multi-offset Lsp route, this route will select 1 or 2 lines and then pick the reference point other side of the line/pline or pick on mid between selected 2 lines then offset by 50mm, and it automatically change the line to hidden, see attached image what would be look like,

Many thanks to all,

I tried a different approach

(defun c:off (/ lt off ln1 ln2 pt Objlst)
 (vl-load-com)

 (setq lt "HIDDEN") ;; <<--- Destination Linetype
 (setq off 50.) ;; <<--- Offset
 (setq objlst '())

 (if (and (setq ln1 (car (entsel "\nSelect line 1: ")))
          (setq ln2 (car (entsel "\nSelect line 2: ")))
          (vl-every
            (function
              (lambda (x)
                (vl-position x
                  '("LINE" "LWPOLYLINE" "POLYLINE"))))
            (mapcar
              (function
                (lambda (x)
                  (cdr (assoc 0 (entget x))))) (list ln1 ln2)))
          (setq pt (getpoint "\nSelect Reference Point: "))
          [color=Red][b](setq pt (trans pt 1 0)))[/b][/color]
   (foreach Obj (mapcar 'vlax-ename->vla-object (list ln1 ln2))
     (repeat 2
       (setq Objlst (append
         (vlax-safearray->list
           (vlax-variant-value
             (vla-offset Obj (setq off (* off -1.))))) Objlst)))
     (mapcar
       (function
         (lambda (x)
           (vla-put-linetype x lt))) Objlst)
     (vla-delete
       (car
         (vl-sort Objlst
           (function
             (lambda (x y)
               (< (distance pt
                    (vlax-curve-getClosestPointto x pt))
                  (distance pt
                    (vlax-curve-getClosestPointto y pt))))))))
     (setq Objlst '())))
 (princ))

Thanks Lee,

Very fast creating codes:lol:

only one thing i have a problem on UCS, i'm trying to modify and add a TRANS code but it does'nt work,

See the code above, I have updated it hopefully to include UCS compatibility...

It work, solved

Thanks Lee,

It work, solved

 

Thanks Lee,

No probs