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zero elevation points in a drawing file

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Category: EN
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URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=10304
Printed Date: 25.May.2026 at 09:54


Topic: zero elevation points in a drawing file
Posted By: Rajesh K. Maini
Subject: zero elevation points in a drawing file
Date Posted: 16.May.2014 at 07:01
Hi all,
 
I want help in identification and deletion of zero elevation points in drawing file containing approx. 30,000 points.
 
Regards


Replies:
Posted By: John Connor
Date Posted: 16.May.2014 at 13:00
Is the drawing being worked on in Civil3D?


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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: Rajesh K. Maini
Date Posted: 16.May.2014 at 17:25
I am working in AutoCAD2013 for the drawing dear Mr. John.
Regards

Posted By: John Connor
Date Posted: 16.May.2014 at 19:02
Could you tell us a little more about these zero elevation points?  What are they exactly?  Geometry?  Text?  Other?  Is this a 2D or 3D drawing?

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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: Rajesh K. Maini
Date Posted: 19.May.2014 at 06:13
These are like 3D survey data points having x, y and z values. There are approx. 30,000 points out of which, it is expected that 2,500 points are having zero elevation. These points are to be deleted before the data can be used for further work.
Regards  

Posted By: John Connor
Date Posted: 19.May.2014 at 11:25
Have you tried using QSELECT?


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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: Rajesh K. Maini
Date Posted: 21.May.2014 at 08:00
Thank you Sir John. Your suggestion for applying QSELECT command has worked like hitting the bull's eye.
Regards

Posted By: John Connor
Date Posted: 21.May.2014 at 11:28
Good to hear that your problem has been solved.


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

<<AutoCAD 2015>>


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