Arcs that don't arc

[Anonymous]

I would like to find the answer to a problem that plagued us when we used AutoCad LT 98 & hasn't changed when opening the same files in LT 2014.  All curved lines (arcs) that occur in a recently-opened file look like two straight lines with an angle at the mid-point, so that from a distance they still resemble an arc but not at all when zoomed in.  When clicking on the control points, it goes to looking like a proper arc, but the change doesn't hold after the file is saved and reopened.  What is going on?  Is there a program-wide setting to change, or do the properties of each arc need to be changed individually?

[drjohn · Accepted solution]

VIEWRES needs to be set.

Fast circle zoom = yes

Circle zoom percent should be 20000

This, IMHO, is an artifact left over from early ACAD and 286/6 computers. 

Back then, when you regen'd (no redraw was available) you did it just before lunch so it would have an hour to regen.  The hardware has gotten much better now, as you know.

HTH

Regards,

DJ

[braudpat]

Hello

+1 with Drjohn

You have a lot of very old DWGs (1st time created) with VIEWRES = 100 / 500 / 1000

But the maximum VIEWRES is 20000 ...

Each time, I receive a DWG :

VIEWRES <Enter>

Yes (if necessary) <Enter>

20000 (if necessary) <Enter>

And a few other "security" things like AUDIT or loading the DWG with RECOVER or RECOVERALL

etc ...

Bye, Pat

[Anonymous]

It works great, thanks so much!