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add attribute to an existing block

  • Thread starter Thread starter 77marco77
  • Start date Start date

77marco77

Guest
Hello.
I found this code:
HTML: 
(defun c:add$ ( / ss i blk blks def attobj)
    (and
       (setq ss (ssget '((0 . "insert"))))
       (setq i (sslength ss))
       (while (> i 0)
          (setq blk (cdr (assoc 2 (entget (ssname ss (setq i (1- i)))))))
          (if (not (vl-position blk blks))(setq blks (cons blk blks)))
       )
    )
    (foreach blk blks
         (setq def (vla-item (vla-get-blocks (vla-get-activedocument (vlax-get-acad-object))) blk))
         (setq attobj
            (vla-addattribute def
              8
              acattributemodelockposition
              "enter item #"
              (vlax-3d-point 72 84)
              "price\u+0020"
              "100"
            )
         )
         (vlax-put attobj 'alignment acalignmentmiddle) ;; 4
         (command "_.attsync" "_n" blk)
     )
    (princ)
)
(vl-load-com) (princ)
who:

Add new attribute to multiple existing blocks

Hi there Im a very beginner at using lisp, so help would come in handy. Couldnt find anything on the web for this precise issue. I have a dwg containing hundreds of blocks, each with the same attribute tags and different values (eg Name, Model, Size..). This is my library, which needs to be modif...
www.cadtutor.net
and does what should, that is, add the attribute with tag price, enter item message # and content 100 to one or more selected blocks. the attribute is inserted at the point of insertion of the block (then often just above the design) with half-center justification.

what I would like to understand (and be able to change) are:
  1. the justification: I would like to know what and where to write by middle center, half left and half right
  2. the location: we say that (0.0) is the insertion point of the block I would like to add the attribute for example to (0,-10) design unit
thank you in advance who will help me
 
(vlax-3d-point 72 84)
the coordinates relative to the insertion point of the block where the attribute is placed.
edit the 84 in 74 and get your -10 on y.
 
thanks for the answer, I tried but it does not work, the attribute is always placed on the base point of the block...
 
(vlax-put actbj 'alignment acalignmentmiddle); 4

if you delete the line the attribute is placed in coordination but does not change the alignment point.
with _battman solve in any case.
 
so it should go, to get the alignment in between, you have to add a vla-move.
Code: 
(defun c:add$ ( / ss i blk blks def attobj)
    (and
       (setq ss (ssget '((0 . "insert"))))
       (setq i (sslength ss))
       (while (> i 0)
          (setq blk (cdr (assoc 2 (entget (ssname ss (setq i (1- i)))))))
          (if (not (vl-position blk blks))(setq blks (cons blk blks)))
       )
    )
    (foreach blk blks
         (setq def (vla-item (vla-get-blocks (vla-get-activedocument (vlax-get-acad-object))) blk))
         (setq attobj
            (vla-addattribute def
              8
              acattributemodelockposition
              "enter item #"
              (vlax-3d-point 72 84)
              "price\u+0020"
              "pippo"
            )
         )
        (vlax-put attobj 'alignment acalignmentmiddle) ;; 4
        (vla-move attobj (vlax-3d-point 0 0)(vlax-3d-point 0 -10))
        (command "_.attsync" "_n" blk)
     )
        
    (princ)
)
(vl-load-com) (princ)
 
Last edited:
confutatis said:
so it should go, to get the alignment in between, you have to add a vla-move.
Code: 
(defun c:add$ ( / ss i blk blks def attobj)
    (and
       (setq ss (ssget '((0 . "insert"))))
       (setq i (sslength ss))
       (while (> i 0)
          (setq blk (cdr (assoc 2 (entget (ssname ss (setq i (1- i)))))))
          (if (not (vl-position blk blks))(setq blks (cons blk blks)))
       )
    )
    (foreach blk blks
         (setq def (vla-item (vla-get-blocks (vla-get-activedocument (vlax-get-acad-object))) blk))
         (setq attobj
            (vla-addattribute def
              8
              acattributemodelockposition
              "enter item #"
              (vlax-3d-point 72 84)
              "price\u+0020"
              "pippo"
            )
         )
        (vlax-put attobj 'alignment acalignmentmiddle) ;; 4
        (vla-move attobj (vlax-3d-point 0 0)(vlax-3d-point 0 -10))
        (command "_.attsync" "_n" blk)
     )
       
    (princ)
)
(vl-load-com) (princ)
Click to expand...
Thank you so much!
I must admit that I feel like a child who is witnessing the disappearance of the statue of freedom by David copperfield: small and without words:):giggle:.
 
rpor66 said:
(vlax-put actbj 'alignment acalignmentmiddle); 4

if you delete the line the attribute is placed in coordination but does not change the alignment point.
with _battman solve in any case.
Click to expand...
thanks I tried and it would work, but having to do it for 6358 blocks it becomes a little long, thanks however for the idea and help!
 
confutatis said:
so it should go, to get the alignment in between, you have to add a vla-move.
Code: 
(defun c:add$ ( / ss i blk blks def attobj)
    (and
       (setq ss (ssget '((0 . "insert"))))
       (setq i (sslength ss))
       (while (> i 0)
          (setq blk (cdr (assoc 2 (entget (ssname ss (setq i (1- i)))))))
          (if (not (vl-position blk blks))(setq blks (cons blk blks)))
       )
    )
    (foreach blk blks
         (setq def (vla-item (vla-get-blocks (vla-get-activedocument (vlax-get-acad-object))) blk))
         (setq attobj
            (vla-addattribute def
              8
              acattributemodelockposition
              "enter item #"
              (vlax-3d-point 72 84)
              "price\u+0020"
              "pippo"
            )
         )
        (vlax-put attobj 'alignment acalignmentmiddle) ;; 4
        (vla-move attobj (vlax-3d-point 0 0)(vlax-3d-point 0 -10))
        (command "_.attsync" "_n" blk)
     )
      
    (princ)
)
(vl-load-com) (princ)
Click to expand...
still a little soda (maybe... )
the text height put to 2 (instead of 8), you can enter a width factor to 0.9 or do it later with another lisp? (I think I already have it)
 
Code: 
(defun c:add$ ( / ss i blk blks def attobj)
    (and
       (setq ss (ssget '((0 . "insert"))))
       (setq i (sslength ss))
       (while (> i 0)
          (setq blk (cdr (assoc 2 (entget (ssname ss (setq i (1- i)))))))
          (if (not (vl-position blk blks))(setq blks (cons blk blks)))
       )
    )
    (foreach blk blks
         (setq def (vla-item (vla-get-blocks (vla-get-activedocument (vlax-get-acad-object))) blk))
         (setq attobj
            (vla-addattribute def
              8
              acattributemodelockposition
              "enter item #"
              (vlax-3d-point 72 84)
              "price\u+0020"
              "pippo"
            )
         )
        (vlax-put attobj 'alignment acalignmentmiddle) ;; 4
        (vla-move attobj (vlax-3d-point 0 0)(vlax-3d-point 0 -10))
        (vla-put-scalefactor attobj 0.9)
        (command "_.attsync" "_n" blk)
     )
    (princ)
)
(vl-load-com) (princ)
 
This was a good opportunity to learn something new, I speak with confutatis.
I have seen that rather than moving the attribute it is possible to change the textalignmentpoint property in two ways:
(vlax-put-property actbj 'textalignmentpoint (vlax-3d-point 0 -10 0))
(vla-put-textalignmentpoint actbj (vlax-3d-point 0 -10 0))

same speech for scalefactor
(vlax-put-property actbj 'scalefactor 0.9)
(vla-put-scalefactor actbj 0.9)

in the definition phase of the attribute simply indicate the coordinate 0.0.0
later you change the textalignmentpoint

greetings
 

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