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Export information 3DPolyLine To Chainage And Elevation


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Here is a pline co-ords example it will make a list of x y z points its up to you what you want to do next.

 

(defun getcoords (ent)
 (vlax-safearray->list
   (vlax-variant-value
     (vlax-get-property
   (vlax-ename->vla-object ent)
   "Coordinates"
     )
   )
 )
)

(defun co-ords2xy (I numb xy)
; convert now to a list of xy as co-ords are x y x y x y if 3d x y z x y z
(setq numb (/ (length co-ords) 3))
(setq I 0)
(repeat numb
(setq xy (list (nth i co-ords)(nth (+ I 1) co-ords)(nth (+ I 2) co-ords) ))
(setq co-ordsxy (cons xy co-ordsxy))
(setq I (+ I 2))
)
)

; program starts here

(setq co-ords (getcoords (car (entsel "\nplease pick pline"))))
(co-ords2xy)


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Here is a pline co-ords example it will make a list of x y z points its up to you what you want to do next.

 

(defun getcoords (ent)
 (vlax-safearray->list
   (vlax-variant-value
     (vlax-get-property
   (vlax-ename->vla-object ent)
   "Coordinates"
     )
   )
 )
)

(defun co-ords2xy (I numb xy)
; convert now to a list of xy as co-ords are x y x y x y if 3d x y z x y z
(setq numb (/ (length co-ords) 3))
(setq I 0)
(repeat numb
(setq xy (list (nth i co-ords)(nth (+ I 1) co-ords)(nth (+ I 2) co-ords) ))
(setq co-ordsxy (cons xy co-ordsxy))
(setq I (+ I 2))
)
)

; program starts here

(setq co-ords (getcoords (car (entsel "\nplease pick pline"))))
(co-ords2xy)


 

Thank you sir for replay, But I want lisp file 3Dpolyline to Distance And E

Total Topography Center line.dwg

Required Sample.CSV

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Not sure if this is what you need sanju2323

 

(Defun c:demo (/ csvfile cnt sn i a)
 (if (and
(= (getvar 'DwgTitled) 1)
(setq ss (ssget "_:S:E" '((0 . "POLYLINE"))))
     )
   (progn
     (setq csvfile_ (strcat (getvar 'DWgprefix)
		    (vl-filename-base (getvar 'dwgname))
		    ".csv"
	    )
     )
     (setq csvfile (open csvfile_ "w"))
     (write-line "Distance,Elevation" csvfile)
     (setq cnt 0 sn  (ssname ss 0))
(setq param (fix (vlax-curve-getEndParam sn)))
(repeat	(1+ param)
  (write-line
    (strcat
      (rtos (vlax-curve-getdistatparam sn cnt) 2 
      ","
      (rtos (last (vlax-curve-getpointatparam sn cnt)) 2 4)
    )
    csvfile
  )
  (setq cnt (1+ cnt))
)
     (close csvfile)
     (startapp "notepad" csvfile_)
   )
 )
)

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Not sure if this is what you need sanju2323

 

(Defun c:demo (/ csvfile cnt sn i a)
 (if (and
   (= (getvar 'DwgTitled) 1)
   (setq ss (ssget "_:S:E" '((0 . "POLYLINE"))))
     )
   (progn
     (setq csvfile_ (strcat (getvar 'DWgprefix)
               (vl-filename-base (getvar 'dwgname))
               ".csv"
           )
     )
     (setq csvfile (open csvfile_ "w"))
     (write-line "Distance,Elevation" csvfile)
     (setq cnt 0 sn  (ssname ss 0))
   (setq param (fix (vlax-curve-getEndParam sn)))
   (repeat    (1+ param)
     (write-line
       (strcat
         (rtos (vlax-curve-getdistatparam sn cnt) 2 
         ","
         (rtos (last (vlax-curve-getpointatparam sn cnt)) 2 4)
       )
       csvfile
     )
     (setq cnt (1+ cnt))
   )
     (close csvfile)
     (startapp "notepad" csvfile_)
   )
 )
)

 

 

This Lisp Error shown as

" ; error: no function definition: VLAX-CURVE-GETENDPARAM"

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Not sure if this is what you need sanju2323

 

Maybe the OP's request is for horizontal distances (see posted dwg/csv).

 

:)

 

;Copyright  © pBe 
(Defun c:demo (/ csvfile cnt sn i a hyp h progr)
   (vl-load-com)
   (if (and
           (= (getvar 'DwgTitled) 1)
           (setq ss (ssget "_:S:E" '((0 . "POLYLINE")(-4 . "&=") (70 . )))
       )
       (progn
           (setq csvfile_
                    (strcat
                        (getvar 'DWgprefix)
                        (vl-filename-base (getvar 'dwgname))
                        ".csv"
                    )
           )
           (setq csvfile (open csvfile_ "w"))
           (write-line "Distance,Elevation" csvfile)
           (setq cnt 0 sn  (ssname ss 0) progr 0.)
           (setq param (fix (vlax-curve-getEndParam sn)))
           (repeat (1+ param)
               (if (> cnt 0)
                   (progn
                       (setq hyp (- (vlax-curve-getdistatparam sn cnt) (vlax-curve-getdistatparam sn (- cnt 1))))
                       (setq h (- (last (vlax-curve-getpointatparam sn cnt)) (last (vlax-curve-getpointatparam sn (- cnt 1)))))                       
                       (setq progr (+ progr (sqrt (- (* hyp hyp) (* h h)))))
                   )
                   (progn
                       (setq hyp (vlax-curve-getdistatparam sn cnt))
                       (setq h (last (vlax-curve-getpointatparam sn cnt)))
                       (setq progr 0.)
                   )
               )                          
               (write-line
                   (strcat
                       (rtos progr 2 7)
                       ","
                       (rtos (last (vlax-curve-getpointatparam sn cnt)) 2 4)
                   )
                   csvfile
               )
               (setq cnt (1+ cnt))
           )
           (close csvfile)
           (startapp "notepad" csvfile_)
       )
   )
   (princ)
)

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Maybe the OP's request is for horizontal distances (see posted dwg/csv).

:)

 

:o . Whoa! You are right GP_

 

...
(progn
                       (setq hyp (- (vlax-curve-getdistatparam sn cnt) (vlax-curve-getdistatparam sn (- cnt 1))))
                       (setq h (- (last (vlax-curve-getpointatparam sn cnt)) (last (vlax-curve-getpointatparam sn (- cnt 1)))))                       
                       (setq progr (+ progr (sqrt (- (* hyp hyp) (* h h)))))
                   ....

 

Nice solution :thumbsup:

 

Here's another approach

 

(Defun c:demo2  (/ csvfile cnt sn i a b)
     (if (and
               (= (getvar 'DwgTitled) 1)
               (setq ss (ssget "_:S:E" '((0 . "POLYLINE")(-4 . "&=") (70 . )))
               )
           (progn
                 (setq csvfile_
                            (strcat (getvar 'DWgprefix)
                                    (vl-filename-base
                                          (getvar 'dwgname))
                                    ".csv"
                                    )
                       )
                 (setq csvfile (open csvfile_ "w"))
                 (write-line "Distance,Elevation" csvfile)
                 (setq cnt 0.0
                       a   nil
                       b   nil)
                 (setq pts (vlax-get
                                 (vlax-ename->vla-object (ssname ss 0))
                                 'Coordinates))
                 (while pts
                       (setq a   (cons (list (car pts) (cadr pts))
                                       a)
                             b   (Cons (caddr pts) b)
                             pts (cdddr pts)))
                 (Setq b    (reverse b) p '(0.0 0.0))
                 (mapcar (function (lambda (p1 p2 z)
                                          (write-line  (Strcat
                                               (rtos (setq cnt  (+ (distance p1 p2) cnt)) 2 7)
                                               ","
                                               (rtos z 2 4)
                                               )
                                                csvfile
                                                )
                                                    )
                                          )
                                    (cons p (setq a (reverse a)))
                                    (cons p (cdr a))
                       		b)
                (close csvfile)
                 (startapp "notepad" csvfile_)
                 )
           )
     (princ)
     )
(vl-load-com)
     

Edited by pBe
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  • 6 years later...
sivapathasunderam
(Defun c:demo2  (/ csvfile cnt sn i a b)
     (if (and
               (= (getvar 'DwgTitled) 1)
               (setq ss (ssget "_:S:E" '((0 . "POLYLINE")(-4 . "&=") (70 . )))
               )
           (progn
                 (setq csvfile_
                            (strcat (getvar 'DWgprefix)
                                    (vl-filename-base
                                          (getvar 'dwgname))
                                    ".csv"
                                    )
                       )
                 (setq csvfile (open csvfile_ "w"))
                 (write-line "Distance,Elevation" csvfile)
                 (setq cnt 0.0
                       a   nil
                       b   nil)
                 (setq pts (vlax-get
                                 (vlax-ename->vla-object (ssname ss 0))
                                 'Coordinates))
                 (while pts
                       (setq a   (cons (list (car pts) (cadr pts))
                                       a)
                             b   (Cons (caddr pts) b)
                             pts (cdddr pts)))
                 (Setq b    (reverse b) p '(0.0 0.0))
                 (mapcar (function (lambda (p1 p2 z)
                                          (write-line  (Strcat
                                               (rtos (setq cnt  (+ (distance p1 p2) cnt)) 2 7)
                                               ","
                                               (rtos z 2 4)
                                               )
                                                csvfile
                                                )
                                                    )
                                          )
                                    (cons p (setq a (reverse a)))
                                    (cons p (cdr a))
                       		b)
                (close csvfile)
                 (startapp "notepad" csvfile_)
                 )
           )
     (princ)
     )
(vl-load-com)

I get error

; error: extra right paren on input
_$ 

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sivapathasunderam

; error: extra right paren on input
_1$ 

Even same error after adding missing  ")"

(startapp "notepad" csvfile_)
                 )
           )
     (princ)
     )
  )
(vl-load-com)
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This is likely a byproduct of the "upgrade" to the forum software - I imagine the code should read:

(setq ss (ssget "_:S:E" '((0 . "POLYLINE")(-4 . "&=") (70 . 8))))

When the forum software was updated, all occurrences of "8)" in all code snippets were removed.

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