TheSwamp

CAD Forums => Vertically Challenged => Land Lubber / Geographically Positioned => Topic started by: dubb on July 06, 2018, 12:43:43 PM

Title: What is true north for CA83-VIF?
Post by: dubb on July 06, 2018, 12:43:43 PM

I don't have C3D but I design with Geographic locations. I think my northdirection parameter is incorrect. Can someone please generate a blank dwg with CA83-VIF?

Title: Re: What is true north for CA83-VIF?
Post by: ronjonp on July 06, 2018, 02:50:49 PM

Funny .. a Google search brought me back to you  (http://www.theswamp.org/index.php?topic=53420.0)from last September :)

Title: Re: What is true north for CA83-VIF?
Post by: dubb on July 06, 2018, 03:38:12 PM

Quote from: ronjonp on July 06, 2018, 02:50:49 PM

Funny .. a Google search brought me back to you  (http://www.theswamp.org/index.php?topic=53420.0)from last September :)

I saw that. Its actually for a different zone. Zone 5 (CA83-VF). I noticed the North Direction was slightly off by some degrees. In my CA83-VIF file (Zone 6 California State Plane) the north direction is 0 Degrees exactly.

Title: Re: What is true north for CA83-VIF?
Post by: ronjonp on July 06, 2018, 04:15:10 PM

Here you go.

Title: Re: What is true north for CA83-VIF?
Post by: dubb on July 06, 2018, 06:03:59 PM

Quote from: ronjonp on July 06, 2018, 04:15:10 PM

Here you go.

Awesome thanks!

Title: Re: What is true north for CA83-VIF?
Post by: dubb on July 06, 2018, 06:05:32 PM

So north direction is actually zero.

Title: Re: What is true north for CA83-VIF?
Post by: mjfarrell on July 06, 2018, 06:19:05 PM

if that is how you have autocad set up....yes

it's zero for each projection/zone

yet it will have a slight declination between zones