Jump to content

3D Survey Data Import Error


Recommended Posts

I have upgraded to Version 9.5.1 and I am now getting an error when I importing survey data. The error is as follows: "Error: Could not find NNA_DTM_Hidden_Record". I am sure it has nothing to do with memory allocation as I am not on a Mac, I am running WinXP with 256MB ram. Also, Version 9.5 imports the same file with no such error. Clean installed both Version 9.5 and 9.5.1 and I am still experiencing the same error under 9.5.1 as before. Survey file has large number of points 5,823 but imports and creates DTM in Version 9.5 OK but will not import to 9.5.1. Can you suggest why?

Link to comment

The "NNA_Hidden_Record" is a component of the DTM subsystem. This record is created by the DTM command, but if your DTM fails while running, the record can be corrupted.

Start a new blank file and try to import your data again. You should be able to run the DTM successfully.

Unfortunately, this problem can arise in all versions of VectorWorks 9, but is less likely to happen in 9.5 and later.

Matthew GiampapaNNA Technical Support

Link to comment

I have tried what you have suggested. To test your theory, I created a completely blank sheet the only classes being Dimension and None and one layer, no symbols - nothing. I even went to the trouble of purging the blank sheet just to make sure. I then import a 3d survey point data which consists of only four point records, but alas I still get the previously described error message. It must be 9.5.1 as version 9.5 doesn?t generate this error. Please validate my conclusion.

Link to comment

Interesting... Can you send us the data file you are using via email? I'll go through the whole process and see what happens. If its a bug, I'll see what I can do about a wrokaround/fix.

It would be best if you sent the data file, and an example VectorWorks file where you are seeing the problem to tech@nemetschek.net.

Matthew GiampapaNNA Technical Support

Link to comment
  • 2 years later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...