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Union of CAD blocks

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=10144
Printed Date: 30.Apr.2026 at 15:03


Topic: Union of CAD blocks
Posted By: sangcad
Subject: Union of CAD blocks
Date Posted: 19.Mar.2014 at 11:37
Do you have any idea to trim/hide the blocks automatically when overlapping with another blocks?


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Sanghita



Replies:
Posted By: John Connor
Date Posted: 19.Mar.2014 at 11:59
That sounds like something only a custom lisp routine "might" be able to handle.  Only someone familiar with lisp could give you an exact answer.


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>



Posted By: sangcad
Date Posted: 19.Mar.2014 at 12:05
I also think so, but may be need some c++ expert. I don't think it will be possible with only lisp.. don't know may be....


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Sanghita


Posted By: John Connor
Date Posted: 19.Mar.2014 at 12:40
Good luck with that.


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>



Posted By: Kent Cooper
Date Posted: 19.Mar.2014 at 15:45
If you wanted only one of them to have part of its boundary disappear, you could build the Block with Wipeouts in it, and control which one wipes out the other with their Draworder.  But that would also wipe out the hatching of the Block that's behind, which isn't in accordance with your image.  And they couldn't mutually wipe out each other's edges by any means I can think of, as Block insertions.  You may be stuck with Exploding them and Trimming pieces out.


Posted By: sangcad
Date Posted: 19.Mar.2014 at 16:33
Yes, it is okay if we wipeout any specific area. Actually wipeout hides the other objects below the block.
It is also okay if we built the block like that without adding the wipe out.
I need some program which will automatically clip that overlapping portion of the block.
For now I am doing manually with "xclip" command. "xclipframe" command to turn ON/OFF the boundary.


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Sanghita



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