Just an FYI...
The LDD Pack Points just removed deleted points from the database, making
those point numbers available once more, nothing more. This is easily
verified....open the MDB fiel in Access and view it's different tables, but
specifically the Points table. Close the mdb, open LDD to that project, run
the pack points command, save & close. Then re-opne that MDB file in Access
and compare it to what you observed in the prior version of the file.
The Survey Points Database very well may be similar in design, it is a MS
JET DB file (IOW, it can be opened & edited in Access) but without a sample
DB to test with (I don't use the survey DB at this time) I don't know if it
keeps deleted points in the DB.
The points in a drawing do not suffer from that same problem (if it is/was
indeed a problem). They are just drawing objects, and are referenced in
different Point Group collections until they are deleted. However, there is
no remnant object left in the DWG once you delete a point...IOW, once a
point is deleted, it's gone (save for the UNDO command), in LDD you could
retrieve that point up until the time the DB was packed. What MAY impact
this performance-wise, is the ISAVEPERCENT sysvar which affects all dwg
object edits.
I wrote a small program a few years ago that emulated the pack points
command in C3D. There were a number of people that found it useful, perhaps
you will too. It is only for the dwg points, not survey points, though. You
can find it in the c3d.customization group in the thread "Pack" Points, c.
Oct. 2006
If you would like to send me a sample SDB file that has undergone multiple
edits/deletions/etc., I'd be happy to see if there is anything we can do to
speed up the use of this file.
Jeff
"Nicholas Messina"; "PSM" wrote in message
news:620712@discussion.autodesk.com...
> Laurie,
>
> As a surveyor, I can definitely tell you there is an external point
> database file named “Survey.sdb” and resides in the root directory of your
> project folder. Even if your not a Surveyor and don't create that
> external survey database, Civil 3D most likely has an internal point
> database within the drawing. Much like a hard drive, when you delete
> points it does not actually deletes the point it just makes that space
> available for overriding.
>
> If you have allot of points that are created, modified, and deleted over a
> period of time just like a hard drive the database gets cluttered with
> gaps on empty space. The old LDD command Pack Points Database would go
> through the process of optimizing the database so that it is read more
> effectively, just as the windows defragment program.