topic Re: Horizontal and Vertical Datum conversion in Civil 3D Forum

Horizontal and Vertical Datum conversion

mramseur — Tue, 22 Mar 2022 17:24:03 GMT

Hello,

Does AutoCAD Civil 3D 2022 or AutoCAD Map 3D 2022 have a feature to convert horizontal datum coordinates (i.e. Lat./Long. coordinates to NAD 83 North./East. coordinates)? Also, does it also have a feature to convert vertical datum elevations (i.e. NAVD 88 to NGVD 229 or MLLW elevations)?

Thank you.

Re: Horizontal and Vertical Datum conversion

AllenJessup — Tue, 22 Mar 2022 17:49:27 GMT

There are Transformation Tools on the Toolbox Tab.

Also. It you're only converting points. CORPCON is a very efficient tool

Re: Horizontal and Vertical Datum conversion

Pointdump — Tue, 22 Mar 2022 17:49:19 GMT

Hi Mills,
You can get the new Transformation Toolset from your Account Page. It works with Civil 3D Objects.
Dave

Re: Horizontal and Vertical Datum conversion

rl_jackson — Tue, 22 Mar 2022 23:06:53 GMT

I had seen the Transformation Tools show up in another conversation a short time ago, so I went and downloaded it. With the vertical adjustment from USFT to IF that could be quite useful considering FEMA is producing maps based on NAVD88 for publish soon in Miami-Dade and probably everywhere else for that matter, so we will be playing with multiple datums for a long time to come. (NGS and FEMA should probably get together, and have a discussion so the left and right are on the same page).