topic Switching between blocks by name in AutoCAD Forum

Switching between blocks by name

merd94 — Wed, 06 Dec 2017 09:21:41 GMT

Hi, does anyone knnow hot to switch between blocks by name.

For example i've created two blocks, block 'a' and 'b', after inserting 10 blocks of 'a' i need to replace only three of them to block 'b'. Any suggestions?

Replace block in express tools doesnt work, it replaces all of them. However i need to change selected only.

Re: Switching between blocks by name

imadHabash — Wed, 06 Dec 2017 09:39:36 GMT

Hi,

in general blocks replacement will not serve your issue . i don't exactly how is your case look like BUT as you describe that you want to replace just 3 of blocks to another kind block and this is mean ( some how ) that you have a same base point. i think the fastest way is just to copy block B over block A then erase unwanted ones. you may have different case than the one that i imagine it ... please if you want to share with us your case you can attache a screencast or the CAD file itself to see how it could be done .

Regards.

Re: Switching between blocks by name

MikeKovacik4928 — Wed, 06 Dec 2017 09:45:25 GMT

The issue of replacing only selected instances of blocks, can be solved with

this little lisp routine which I got off someone on this forum previously.

Only problem is you have to enter in name of replacement block by typing in rather than

selection. Then you can choose by selecting, and the blocks you choose, will be replaced.

Appload the routine, and the type BRS to run

See attached

Michael Kovacik
2d & 3d Autocad and Inventor designer/draughtsman
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(Impossible only means you haven't
found the solution yet)

Re: Switching between blocks by name

StephenThomasGrace — Wed, 06 Dec 2017 11:50:06 GMT

You can use the clipboard and express tools for this little trick

select all the blocks you want to keep and copy with basepoint, 0,0..

Then delete them.

Now use the express tools replace block.

That will fix all the remaining blocks

Then clipboard > paste to original coordinates to retrieve your original blocks.

The clipboard allows you do all sorts of stunts like this.

-steve

Re: Switching between blocks by name

merd94 — Wed, 06 Dec 2017 12:24:16 GMT

Thanks, that exactly what i wanted

Re: Switching between blocks by name

MikeKovacik4928 — Wed, 06 Dec 2017 16:43:55 GMT

Glad I could help.

Mike

Re: Switching between blocks by name

MikeKovacik4928 — Wed, 06 Dec 2017 16:45:28 GMT

Steve

That is a good work around.

It is what I also used to do, until I got hold of the lisp.

the lisp is a lot quicker and less painful!

Mike