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a simple question

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DXF formats, Design Review, AutoCAD web, Drive, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=2894
Printed Date: 06.Sep.2026 at 03:43


Topic: a simple question
Posted By: belisk
Subject: a simple question
Date Posted: 18.Dec.2009 at 18:23
how can i measure the real distance of a line appearing in the screen.when i say the real distance i mean the distance you see.for example with a zoom out a line is 10cm and with a zoom in cam become 30cm in the screen.how can i know that distance? help please


Replies:
Posted By: Vladimir Michl
Date Posted: 18.Dec.2009 at 18:43
There is no objective "distance you see". E.g. on a larger monitor the distance will be higher. You can measure the real distance of two points in your drawing/model (in the drawing units) with [CMD]DIST[/CMD].

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Vladimir Michl (moderator)
https://www.linkedin.com/in/vmichl/" rel="nofollow - LinkedIn , Autodesk Expert Elite

Posted By: belisk
Date Posted: 18.Dec.2009 at 19:13
yes i know that. that's why i said the example with the zoom in and zoom out.maybe i wasn't correct to say the real distance.
imagine you take a ruler ,put it in the screen and measure the distance you see.

Posted By: CarlB
Date Posted: 18.Dec.2009 at 20:38
I think the only reliable way to get the length of what you see on the screen is to place your scale/ruler against the screen. A program could be made to read the AutoCAD window size in  inches, read the current zoom scale in AutoCAD, then figure the display scale. But for what purpose?
 
 Maybe if you tell us your goal (plotting?) we can be more helpful..

Posted By: Tankman
Date Posted: 19.Dec.2009 at 04:44
And what would the purpose be?
 
Scale the screen? Wouldn't the length change from screen to screen if someone else was measuring?
 
I guess I'm missin' the point.


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Tankman

"When the well's dry, we'll all know the value of water."

Posted By: msplcdykee69
Date Posted: 20.Dec.2009 at 02:43
Sounds to me your looking to scale your drawing. Set the global scale for your drawing then go to paperspace and then measure your line that will give you the distance of that line of what it would be if you plotted it out. What ever you draw does not change no matter what computer you use. How you set up your drawing is how everyone see's it unless someone changes some of the settings. Hope this helps

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Engineering Manufacturing Medical Cables/Adjunct Instructor Engineering Graphics/Engineering Computations and Careers

msplcdykee69@yahoo.com

Shawn

Posted By: Rman
Date Posted: 30.Dec.2009 at 09:03
what are you trying to do belisk? never try to measure object at screen whenever you zoom it. it is just a view. you can not get a true measurement by doing that. it could be any distances depending on your zoom scale factor.
 
sorry, maybe i'm not realy understand what your issue is.


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