Change Blocks Insertion point WITHOUT moving Existing Blocks

Hey Guys and gals,

I have a drawing with flow arrows that are blocks and I need to change the insertion point of the block without moving the existing blocks.

The reason is because they are in the right place but their insertion point is wrong. And everytime i move the insertion point it moves all the existing blocks...

not easy, in fact I haven't found a simple way of doing it.

It should be possible using LISP once you know the offset of your block geometry to its insertion point but I couldn't start to work that one out.

can you explode the blocks?

There is roughly 2000+ blocks so exploding and reinserting each block is not really an option

if they are all (most) inserted at 1:1 and orthagonally you could redefine the block and then using QSELECT move each rotational set by an known amount. This stops being simplae when you have a colection of scales and a multitude of rotations.

All scales are 1:1 but like u said the multitude of rotations is what makes it not so simple.

I found a forum where another guy posted the same question then he was forwarded to a german blog with a solution.....unfortunately i cant read german

there are websites that will convert things from one language to another

heres a few i found with a quick search

http://translation2.paralink.com/

http://free-translation.imtranslator.net/default.asp?loc=en&l=de

http://www.worldlingo.com/en/products_services/worldlingo_translator.html

http://babelfish.yahoo.com/ (will do the whole webpage just copy the browser)

this is the post (translated thanks chelsea1307) and their is a code .vlx txt file attached....which i dont know much about code

*how do i post the .vlx code file?

. .so new version for testing! I should again which have surveyed - > short report.

Tools function in such a way now in principle:

1. Selection of a block reference and choice of a new point of basis

2. The block reference is turned or scaled taken place (when desired) a conversion of the shift vector of point of basis.

3. Redefinition of the block through

- Shifting all elements of the block the turned shift vector of point of basis

(office 10 among other things set on (0,0,0,0,0,0))

4. Update of all references (when desired) by appropriate shift of their insert point

To application:

1. Memory as *.vlx

2. in the Autocad shop

3. Call with DT: BLOCK MOVE BASE POINT in the command line

or ^C^CDT: BLOCK MOVE BASE POINT on a button

i think you just open the .vlx copy the text and post it between here minus the extra space in the second set of brackets

[ /CODE]

This seems to work for me...it grabs the lower left bounding point, then redefine, then grab the left point again and move to previous stored point.

The block needs to be in your support path or add the path to the command call.

*no error checking and will bonk out if the block is on a locked layer.

(defun c:test (/ e n ss obj out rjp-bbleft)
 (defun rjp-bbleft (obj / ll ur)
   (vla-getboundingbox obj 'll 'ur)
   (vlax-safearray->list ll)
 )
 (setq n -1)
 (if (setq ss (ssget "_x" '((0 . "insert") (2 . "123"))))
   (progn (while (setq e (ssname ss (setq n (1+ n))))
        (setq obj (vlax-ename->vla-object e))
        (setq out (cons (list obj (rjp-bbleft obj)) out))
      )
      (command ".-INSERT" "123=123.dwg" '(0 0 0) (command))
      (foreach block out
        (vla-move (car block)
              (vlax-3d-point (rjp-bbleft (car block)))
              (vlax-3d-point (cadr block))
        )
      )
   )
 )
)

Hey RonJonP

So I copy and pasted your code into notepad, saved as test.lsp, In cad I went appload and loaded the lsp. When i type in test in the command prompt i get "nill" warning and nothing happens.

Im sure I must be doing something wrong?

Sorry for the inconvenience and thanks in advance for all the help!

Give this a try...the instructions are at the bottom.

(defun rjp-rbnomovey (bnames / e n ss obj out rjp-bbleft)
(vl-load-com)
 (defun rjp-bbleft (obj / ll ur)
   (vla-getboundingbox obj 'll 'ur)
   (vlax-safearray->list ll)
 )
 (setq n -1)
 (foreach name    bnames
   (if    (setq ss (ssget "_x" (list (cons 0 "insert") (cons 2 name))))
     (progn (while (setq e (ssname ss (setq n (1+ n))))
          (setq obj (vlax-ename->vla-object e))
          (setq out (cons (list obj (rjp-bbleft obj)) out))
        )
        (command ".-INSERT"
             (strcat name "=" name ".dwg")
             '(0 0 0)
             (command)
        )
        (foreach block out
          (vla-move (car block)
            (vlax-3d-point (rjp-bbleft (car block)))
            (vlax-3d-point (cadr block))
          )
        )
     )
   )
 )
 (princ)
)
;;Enter the names of the block names you are using in a list, redefined block drawing must be in search path
(rjp-rbnomovey '("blockname1" "blockname2" "blockname3"))

This is the error I get

Command: appload

rjp-rbnomovey.lsp successfully loaded.

Command: Block san-arr references itself

*Invalid*

; error: Function cancelled

That error means you have a block defined in a drawing that has the same name as the drawing. The definition in the drawing has to be exploded.

Take a look at WBLOCK and see how it handles exporting blocks.

ronjonp you're a life saver!! The lisp is awesome

Much thanks for all the help guys

ronjonp you're a life saver!! The lisp is awesome

 

Much thanks for all the help guys

Glad we got it sorted out

Just to clarify: is this codes work for Acad 2002?

Just to clarify: is this codes work for Acad 2002?

It should work....but I do not have 2002 to test it on.

Looks like don't.

Command: (LOAD "C:/.../rjp.lsp")

Command: RJP-RBNOMOVEY

Unknown command "RJP-RBNOMOVEY". Press F1 for help.

Unless is other call command...

Looks like don't.

Command: (LOAD "C:/.../rjp.lsp")

Command: RJP-RBNOMOVEY

Unknown command "RJP-RBNOMOVEY". Press F1 for help.

 

 

Unless is other call command...

Read the bottom of the last post that contains the code...it will tell you how to use the command.

Never mind, need to restart AutoCAD to get it to work.

It is OK , sorry for trouble.