Dynamic Blocks

Dynamic Blocks

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Mentor
208 Posts
8 Kudos
Registered: ‎08-21-2007
Post 1 of 3

images in DB

117 Views, 2 Replies
10-07-2008 04:19 PM
I have about lets say 50 different images of signs. I could create a single dynamic block with these images in the block.

Using the visibility I could then allow the user to select the type of image to be displayed in the block.



Is this a good workflow

Is this a good utilization of a dynamic block

Will the drawing file get extremely large quickly



thanks in advance.
*Shawn D. McDonald
Post 2 of 3

Re: images in DB

10-07-2008 05:56 PM in reply to: mfernandes

Not sure how that would work.  Most images are "attached" like XREFs
these days.  I just did a test, and noticed the following issues:



The images show up in your External References palette even
after deleting & purging the block. 



If you detach an images while the block is still in the DWG, the image
"disappears" from the block.  The block becomes blank &
unselectable.  Trying to "insert" another instance of the block ends up
with no apparent result- could get confusing.



Similarly, if image frames get turned off, the block becomes
unselectable.



Alternatively, you could also "insert" images via OLE, in which case
they become part of the
drawing, but the file could get pretty large this way, depending on the
size/number of images, since all off them will be inserted with every
block.



Not sure what any of these would affect load times, or how ACAD loads
images that are "invisible" or hidden inside the block.



Anyhow, it seems that it could be done, but it's up to you to decide
whether the benefit is worth the potential problems.  Good luck!

---
Shawn D. McDonald
The Blueline Group
Kirkland, WA





mfernandes wrote:
I
have about lets say 50 different images of signs. I could create a
single dynamic block with these images in the block.

Using the visibility I could then allow the user to select the type of
image to be displayed in the block.



Is this a good workflow

Is this a good utilization of a dynamic block

Will the drawing file get extremely large quickly



thanks in advance.

Distinguished Contributor
209 Posts
0 Kudos
Registered: ‎11-12-2004
Post 3 of 3

Re: images in DB

10-09-2008 02:54 AM in reply to: mfernandes
I would never use images in blocks. You say they are signs, just draw them and then use them in a DB with VISSTATES.
If they're roadsigns or something similar you can add a rotation/flip parameters to let the user change directions of arrows etc.

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