Automatically number vertices on a pline

Does anyone have a lisp to number the vertices on a pline?? So the user wold select the pline and numbers would be placed at all vertices.

This could very easily be achieved using the vlax-curve-* functions, since the vertices of a Polyline have zero-based integer parameters.

So the pseudo-code would look something like:

• Prompt for selection of Polyline
  

• Initialise a counter variable
  

• While the counter is less than the parameter of the end vertex (vlax-curve-getendparam)
  

• Add Text entity at the point described by
  vlax-curve-getpointatparam
  with content equal to 1+ the counter variable.
  
  

• Increment Counter Variable
  
  

Thanks LeeMac,

I'll give it a go.

How did you get on Woodman?

Didn't even get to look at it yet LeeMac. Run off my feet between home and work at the moment. Hope to get a chance to have a look during the week.

You could also set a counter at 0, then step through the entity data dump (entget) and use each 10 code. However, I'd go with the vlax-curve-getPointAtParam method (Lee described), as it's a lot less legwork.

My approach .

(defun c:test (/ e ent n i j p)
 ;; Tharwat 12. 07. 2011
 (if (and (setq e (car (entsel "\n Select a Polyline :")))
          (member (cdr (assoc 0 (setq ent (entget e))))
                  '("POLYLINE" "LWPOLYLINE")
          )
          (setq n 0
                j 1
          )
     )
   (while (> (setq i (1+ (fix (- (vlax-curve-getendparam e)
                                 (vlax-curve-getstartparam e)
                              )
                         )
                     )
             )
             n
          )
     (setq p (vlax-curve-getpointatparam e n))
     (entmake (list '(0 . "TEXT")
                    '(100 . "AdCbText")
                    '(100 . "AdCbEntity")
                    (cons 10 (trans p 1 0))
                    (cons 40 (getvar 'textsize))
                    (cons 1 (rtos j 2 0))
                    '(210 0.0 0.0 1.0)
                    '(50 . 0.0)
              )
     )
     (setq n (1+ n)
           j (1+ j)
     )
   )
   (princ)
 )
 (princ)
)

Tharwat

...
 (cons 10 p)
...

like this should be better

maybe also:

(setq XA (angle '(0. 0. 0.) (trans (getvar 'UCSXDIR) 0 (trans '(0. 0. 1.) 1 0 T) T)))
(cons 50 XA)

k.

Well, since there is already a lot of code being offered, here was how I would approach it:

(defun c:test ( / e i j m n p s )
 (if (setq s (ssget '((0 . "LWPOLYLINE"))))
   (repeat (setq i (sslength s))
     (setq e (ssname s (setq i (1- i)))
           n (cdr (assoc 210 (entget e)))
           m (vlax-curve-getendparam e)
           j -1
     )
     (while (<= (setq j (1+ j)) m)
       (setq p  (trans (vlax-curve-getpointatparam e j) 0 e))
       (entmakex
         (list
           (cons  0 "TEXT")
           (cons  7 (getvar 'TEXTSTYLE))
           (cons 40 (getvar 'TEXTSIZE))
           (cons 10 p)
           (cons 11 p)
           (cons 72 1)
           (cons 73 2)
           (cons  1 (itoa (1+ j)))
           (cons 210 n)
         )
       )
     )
   )
 )
 (princ)
)

Short and simple is usually the easiest to write and follow.

     (setq p (vlax-curve-getpointatparam e n))
     (entmake (list '(0 . "TEXT")
                    '(100 . "AdCbText")
                    '(100 . "AdCbEntity")
[color=red]                     (cons 10 (trans p 1 0))[/color]
                    (cons 40 (getvar 'textsize))
                    (cons 1 (rtos j 2 0))
                    '(210 0.0 0.0 1.0)
                    '(50 . 0.0)

Tharwat, note that the vlax-curve* functions will returns points in WCS, not UCS :wink:

Tharwat, note that the vlax-curve* functions will returns points in WCS, not UCS :wink:

Certainly . You're right

Thank you .

Thanks for all the help. I gave it to the surveyors and they were well impressed but had a couple of requests. They were wondering if a Point could be included at each vertex, if a start number could be entered rather than starting at 1 every time and if the text could be offsetted to the RHS by 0.5.

Also how do I alter the text height?

Thanks for all the help. I gave it to the surveyors and they were well impressed but had a couple of requests. They were wondering if a Point could be included at each vertex, if a start number could be entered rather than starting at 1 every time and if the text could be offsetted to the RHS by 0.5.

 

Also how do I alter the text height?

I just noticed you have Civil 3D. Why not just create points and use the point number/description to label the polyline vertices? Would make things a lot easier and could be quickly dumped to send to a data collector. This method is really good for creating state-out work for crews.

Thanks for that alanjt. I'll check it out tomorrow.

Thanks for that alanjt. I'll check it out tomorrow.

No problem. C3D is incredibly powerful. Do yourself a favor and explore some of the menus.

Will do but our surveyors don't have civil 3D. They have map. I'll look into anyway. thanks.

On 7/12/2011 at 3:19 PM, Lee Mac said:

Well, since there is already a lot of code being offered, here was how I would approach it:

 

 

([color=BLUE]defun[/color] c:test ( [color=BLUE]/[/color] e i j m n p s )
 ([color=BLUE]if[/color] ([color=BLUE]setq[/color] s ([color=BLUE]ssget[/color] '((0 . [color=MAROON]"LWPOLYLINE"[/color]))))
   ([color=BLUE]repeat[/color] ([color=BLUE]setq[/color] i ([color=BLUE]sslength[/color] s))
     ([color=BLUE]setq[/color] e ([color=BLUE]ssname[/color] s ([color=BLUE]setq[/color] i ([color=BLUE]1-[/color] i)))
           n ([color=BLUE]cdr[/color] ([color=BLUE]assoc[/color] 210 ([color=BLUE]entget[/color] e)))
           m ([color=BLUE]vlax-curve-getendparam[/color] e)
           j -1
     )
     ([color=BLUE]while[/color] ([color=BLUE]<=[/color] ([color=BLUE]setq[/color] j ([color=BLUE]1+[/color] j)) m)
       ([color=BLUE]setq[/color] p  ([color=BLUE]trans[/color] ([color=BLUE]vlax-curve-getpointatparam[/color] e j) 0 e))
       ([color=BLUE]entmakex[/color]
         ([color=BLUE]list[/color]
           ([color=BLUE]cons[/color]  0 [color=MAROON]"TEXT"[/color])
           ([color=BLUE]cons[/color]  7 ([color=BLUE]getvar[/color] 'TEXTSTYLE))
           ([color=BLUE]cons[/color] 40 ([color=BLUE]getvar[/color] 'TEXTSIZE))
           ([color=BLUE]cons[/color] 10 p)
           ([color=BLUE]cons[/color] 11 p)
           ([color=BLUE]cons[/color] 72 1)
           ([color=BLUE]cons[/color] 73 2)
           ([color=BLUE]cons[/color]  1 ([color=BLUE]itoa[/color] ([color=BLUE]1+[/color] j)))
           ([color=BLUE]cons[/color] 210 n)
         )
       )
     )
   )
 )
 ([color=BLUE]princ[/color])
)

 

 

 

Short and simple is usually the easiest to write and follow.

How to use this. Should it be copied into text and renamed as lisp? 

Reply is appreciated.

2 hours ago, CADWORKER said:

How to use this. Should it be copied into text and renamed as lisp? 

Reply is appreciated.

(defun c:test ( / e i j m n p s )
  (if (setq s (ssget '((0 . "LWPOLYLINE"))))
    (repeat (setq i (sslength s))
      (setq e (ssname s (setq i (1- i)))
            n (cdr (assoc 210 (entget e)))
            m (vlax-curve-getendparam e)
            j -1
      )
      (while (<= (setq j (1+ j)) m)
        (setq p  (trans (vlax-curve-getpointatparam e j) 0 e))
        (entmakex
          (list
            (cons  0 "TEXT")
            (cons  7 (getvar 'TEXTSTYLE))
            (cons 40 (getvar 'TEXTSIZE))
            (cons 10 p)
            (cons 11 p)
            (cons 72 1)
            (cons 73 2)
            (cons  1 (itoa (1+ j)))
            (cons 210 n)
          )
        )
      )
    )
  )
  (princ)
)

I've amended my earlier post to remove the colour tags - I daren't think how many thousand other such posts still exist with embedded formatting...