Osoptions in ACA 2015 - default setting 7

[croc49]

Glad to see August - New support Knowledge Base Solutions.

Been tearing my hair out on large drawing sizes for last 2 months when picking not only hatches, but ellipses, rectangles, MVB's, etc.

No real rythme or reason, but when selected, the spinning wheel would start and sometimes go for 5- 20 minutes before able to continue drawing. (program not responding).

I didn't report it because it was too hard to describe and the drawing sizes were too large to post.

Checking out the above, I found my Osoptions was set at 7 in ACA 2015 installation.

Reading through listed setting, the only system variables were 0,1,2,4.

Seems silly to have a setting that does doesn't exist.

Program working fine now on zero.

[David_W_Koch]

OSOPTIONS is a bit-coded system variable.  The value is the sum of all of the active options.  0 means none are active. 7 means all three (1-bit, 2-bit and 4-bit are active).  I would think that with it set to zero, you would have more performance issues, since a running object snap would be acting on more geometry, particularly if you have a lot of hatch objects in a large drawing.  Unless you were trying to snap to hatch geometry.  But I do not have ACA 2015 available to me at the moment to check.

0 -	Object snaps operate on hatch objects, and on geometry with negative Z values when using a dynamic UCS.
1 -	Object snaps ignore hatch objects.
2 -	Object snaps ignore geometry with negative Z values during use of a dynamic UCS. (Not available in AutoCAD LT.)
4 -	Object snaps ignore endpoints of dimension extension lines.

[croc49 · Accepted solution]

David,

You are correct.

ACA2015 help does not list Osoptions as 7 - you must have inside information.

I have progressively broken up all offending drawings into smaller ones so I could work on them.

Went back a couple of months through my backups, and found one that performs as above.

Will accept this as a solution and post a new thread - I've isolated things down to 3 items - a line, ellipse, and text.

Thanks for your help.