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Convert to block

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=3132
Printed Date: 01.Jun.2026 at 02:20


Topic: Convert to block
Posted By: bcezar
Subject: Convert to block
Date Posted: 03.Feb.2010 at 12:38
Hello, there to everybody!

Please amend this topic, if I opened a new thread which already exists, but I searched a lot the forum and I didn't found anything similar.

So this is my question:
I wondering if there is any possibility to convert automatically a specific pattern of lines, polylines, circles etc. to block. Let's say, I have a symbol of a light bulb (made from a circle with two cross lines inside) and I want to convert all these symbols in the drawing (which have the same dimensions) to a block named "bulb". I am asking to much from this powerful software. Is it possible?


Replies:
Posted By: Vladimir Michl
Date Posted: 03.Feb.2010 at 18:48
I am not sure if I understand this correctly - but isn't it something which does the standard [CMD]BLOCK[/CMD] command?

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Vladimir Michl (moderator)
ARKANCE - https://arkance.world" rel="nofollow - https://arkance.world - Autodesk Platinum Partner

Posted By: bcezar
Date Posted: 03.Feb.2010 at 20:24
Let me explain this better. It is about a drawing which has let's say 428 symbols made from lines and circles. Another 100 symbols made from another circles, lines and/or polylines I was wondering if there is any method to scan the entire drawing for the similar symbols (based on a reference) and convert these symbols (group of lines and circles) into blocks. For example above, two different blocks converted from two type of symbols made from primitive objects.

Posted By: CarlB
Date Posted: 03.Feb.2010 at 20:32
I think I understood you Ok.  Kind of like the reverse of exploding a group of blocks.  Find the groups (not AutoCAD "group")  of objects matching a reference group; convert the found matching groups to a block insert at the appropriate scale, rotation, layer.
 
This would be difficult operation to program to be all-encompassing, it would have to scan the entier drawing database for matching entities, then check to see if there were surrounding entities, and whether they hasd the exact same orientations. ....  I haven't heard of AutoCAD or some add-on with that capability. 

Posted By: bcezar
Date Posted: 03.Feb.2010 at 21:18
Indeed, it looks difficult. I have to blame the designer who worked a lot to make these drawings, but haven't in his mind to use blocks. It was much more easier for me to count the objects... I will go straight and I do the old fashion: count the symbols on the paper, or I will check if [CMD]DATAEXTRACTION[/CMD] command will help me (maybe the lines and the circles in the symbols are unique like dimensions, area etc).

Thank you anyway!


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