1] open a blank drawing
2] _ADESETCRDSYS and set NAD83
3] _MAPIMPORT => browse to the NAD27 shape, then set the entering CRS as NAD27 here:
Thanks, that does bring them in correctly. I brought in the object data and then exported them back out as an SDF file. Now I can connect to that file.
So I take it there is no way for me to just just connect to data (not import) and have it reproject "on the fly" in Civil 3D?
does this work?
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Unfortunately, no. I think that is if you have data in a coordinate system but you want to tell CAD to ingore that and assume it is in someting else. Not really sure why you would use that.
907Trekker wrote:
just connect to data (not import) and have it reproject "on the fly" in Civil 3D?
In my old Autocad release, I often use the _MAPTRACKCS command to display other CRS coordinates in realtime: give it a try, sir.
@907Trekker wrote:
Unfortunately, no. I think that is if you have data in a coordinate system but you want to tell CAD to ingore that and assume it is in someting else. Not really sure why you would use that.
One reason may because map is reading the wrong projection file (.prj). Try to rename the .prj file with your shp file as "opps.prj" then connect and follow Joe's advice.
907Trekker wrote:
Yes, I like that command when I'm trying to view LL and working in grid.
The powerful MAPTRACKCS allows you to view any other CRS on-the-fly, not only the default Lat/Long: enter its properties, and set NAD83.