Importing dwg files

[francescarusso]

Hi,

I got houndreds of dwg files and DTM from a Geophysical survey for a submarine cable route (They are from alignment sheet). When I try to import them into ArcGIS (Desktop 10.2) it shows the message about the "Unknown Spatial Reference".

I have an .mxd with the Coordinates and projection already set up for that project.

Does anyone know why if I ignore this message  sometimes it is drawing the dwg in the right place and sometimes not?

If I try to convert them in shp in the first place and I try to give them the same  coordinate system and projection from the data frame, it doesn't really work for all of them. Some of them are projected in the right place and some not.

Please can someone advise on the best practice to import this data into my GIS?

Thank you very much in advance.

F.

[francescarusso]

Hi Neil,

I had a look and just a couple of layer are visible on a large amount of them. Shall  I have to thick all of them?

Thanks

Francesca

[NeilAyres]

Why not just try it and see?

[francescarusso]

Of course I have already tried and I cannot select a new layer  or deselect an already ticked one. But I see  now that in the CAD dataset feature count drop down window  there are some of my features with a 0. So no I understand that it is not my fault if in the TOC some of the TOA table are empty. It is a characteristic of the dwg itself. Isn't?

Thanks a lot for guiding me through this easy things

Have a nice day

F.