Some Objects are not accepting OSnaps, Trims, Properties, etc

[keelay711]

I took over this drawing from someone, and it is frustrating me to no end.

Some lines, polylines, circle, etc are failing to interact properly. They refuse to trim or extend to each other. CAD will not see the intersections. OSNAPS fail to snap to the intersections. Fillet and chamfers fail to connect the lines. Match properties fails to change the linetype visually. (It shows the line is now hidden2, but won't reflect that on screen, nor print it.)

I have purged, audited, wblocked out, exploded (OMG), pasted geometry into a brand new blank drawing. I have check z values. Nothing seems to work. And of course, boss wants this particular project done today. I spy the clock ticking away and feel helpless now.

I have attached the problem drawing. I beg your insight, as I frantically search the forums for some answers in my dwindling timeframe.

[stelthorst]

Hi keelay711 (Sorry I don't know your name)

It looks like you have a drawing with many noncoplanar lines. Try running the FLATTEN command to return everything to the same z elevation.

If that doesn't work, post back and we'll go to plan B.

[keelay711]

Flatten failed to work.

I did find some additonal polylines that had elevations. I manually returned these to zero via the properties menu. Alas, the same problems persisted.... which means I didn't find them all or there is something else buggy.

I HATE TAKING OVER SOMEONE ELSE'S PROJECT AND THEIR LAME GEOMETRY! Ok... that's off my chest. *breathes deeply*

I did some ugly manual manipulation of things just to get the couple sheets out the door today. No accuracy or intelligence in what I did, but it printed close enough that noone but me knows. Now, time to fix it.

[stelthorst]

I thought it caught it all for me. I've attached what I did for you to review.

I must admit I just ran the flatten command and looked at it from a side view and it seemed OK to me but I didn't play around with the drawing any.

Take a look at what I did and see if it's any different then the results you attained.

[keelay711]

Interesting.... what you did seems to have fixed what was going on. You said just the Flatten command did it for you?

When I invoked it, it said "Invalid keyboard input" or something similar after I selected my objects via a window.

Now I go and invoke it and the following happens:

Command: flatten

Initializing...
Select objects to convert to 2d...
Select objects: Specify opposite corner: 183 found

Select objects:

Remove hidden lines? <No>: y
/
No translatable objects.
\
No translatable objects.
|
No translatable objects.

No translatable objects.

No translatable objects.

No translatable objects.
-
No translatable objects.

No translatable objects.
|
No translatable objects.

No translatable objects.
\
No translatable objects.

No translatable objects.
\
No translatable objects.
\

Command: re
REGEN Regenerating model.

Command:

Check out the attached file! I created a masterpiece in seventeen dimensions!

[stelthorst]

Interesting.... what you did seems to have fixed what was going on. You said just the Flatten command did it for you?

When I invoked it, it said "Invalid keyboard input" or something similar after I selected my objects via a window.

Funky!

All I did was FLATTEN. The only difference I see is I told it No to "Remove hidden lines"

Sometimes you just have to say "Computers" and go on with your day.

[njohneer]

I work solely in 2-D MEP drawings. Every so often my TRIM command ceases to work properly, as described above.

The TRIM/Edge and EDGEMODE settings are correct. It wasn't until I ran FLATTEN (with NO to Remove Hidden Lines?) that TRIM began to work properly again.

Thanks for your help.
NJH

[CADDmanVA]

I've had some bad run-ins with FLATTEN dorking the geometry of drawings before. I use a slightly hacked up method. Give it whirl...

1. Check that all layers are on, thawed and unlocked
   
2. ZOOM to VMAX in Model Space
3. REGENALL
4. Using a reverse selection window (the green one) to select everything
5. Using the DDCHPROP window, select the pull-down menu (at the top)
6. Check the ELEVATION or Z value of each group of objects in that menu
7. Zero out any offending or *Varies* numbers
8. All done!

Slightly odd method, I know. Like I said though, FLATTEN has really given me some bad days before. Anyhow, this trick will NOT work with 3D Polylines, or 3D Splines. Best of luck to ya!