AutoCAD Map 3D General Discussion

AutoCAD Map 3D General Discussion

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Gordon447
Posts: 2
Registered: ‎05-14-2012
Message 1 of 3 (195 Views)

Conversion of ngvd29 to navd88

195 Views, 2 Replies
05-14-2012 01:25 PM

Question can map 3d convert directly between NGVD29 and NAVD88? If so, where can I find the reference for this procedure? If not is there any documentation on map 3d not being able to do this.

Distinguished Mentor
thepworth
Posts: 525
Registered: ‎03-02-2011
Message 2 of 3 (186 Views)

Re: Conversion of ngvd29 to navd88

05-15-2012 07:38 AM in reply to: Gordon447

I don't belive you can.  I'd probably suggest taking points and running them through "vertcon" from the NGS Geodetic Toolbox first before bringing into either C3D or Map3D.  

 

I could be wrong, but I don't remember seeing it done before. :smileysad:

 

Think of it as "Map2.5D" as the literature only talks about 2D Coordinate transformations.... 

 


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New Member
Gordon447
Posts: 2
Registered: ‎05-14-2012
Message 3 of 3 (177 Views)

Re: Conversion of ngvd29 to navd88

05-15-2012 03:50 PM in reply to: thepworth
Thank You.
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