I need to provide a drawing in 2 separate co-ordinate systems but I only want to have to draw once in Carlson. What is the best way to shift a completed drawing from one grid to another while preserving Carlson points etc. Scale factor is not an issue on this as the site is very small.
In autocad I would Just Xref the original drawing in. Move it to the secondary coordinated you would like to use and relabel accordingly.?ÿ
I would just set up a site UCS.?ÿ Toggle between that UCS and World as needed.
Can you draw it in one coordinate system, block and copy it, paste it in the other coordinate system, move and rotate the block, then explode the block?
I do this by having two completely different coordinate files and two different drawing files.
I draw one complete drawing and save under one name.
Then I twist the drawing to the other system and save under a new name.
If you can submit one of the drawings without points (or other incompatible objects) it's as simple as:
Create one complete drawing with the dominant coordinate system assigned (the CS that is most likely to be used for design, etc...)
Create a second drawing with the second CS assigned.
In the second dwg - attach the first drawing (see https://knowledge.autodesk.com/support/autocad-map-3d/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/MAP3D-Use/files/GUID-C8DA7CFF-2EC7-4DF4-9407-6D574745EB9F-htm.html)
ADEQUERY all required data (choose layers * if?ÿ you want it all) in to the second drawing - then detach the first drawing (you don't want any changes in the second drawing to be inadvertantly saved back to the first drawing).
Note that ADEQUERY only works with native AutoCAD entities (lines, plines, text, etc. so no CD objects like TINS, Points, alignments, etc. and probably no Carlson specific objects - points would probably not be queried in).
If you need all of the objects in both drawings (like points) then you'll have to learn about some of the workarounds for those objects that don't query over - just Duck Duck GO it (I'm boycotting google's search - they are piling too many sponsored results at the top).
Each drawing will be independent of the other so track changes carefully and DON'T create the second drawing until you are 100% finished with the first one.
Thanks all I will try the suggestions above. I am hoping to be able to maintain a link to the .crd file after moving. I think the update crd from drawing command will help with that.