US Survey Foot vs International Foot - DWG - DGN

As a way to make the Survey Foot DGN’s reference correctly into a DWG file I have the following work around.

The difference between a Survey Foot and International Foot is:

1 Survey Foot = 1200/3937 meters = 0.3048006096 meters
1 International Foot = 0.3048 meters exactly

Therefore the difference between them is:
0.3048006096/0.3048 = 1.000002 sf/ft

Or 0.999998 ft/sf

So when you reference a dgn into autocad set the scale of the reference to 0.999998 and it should match.

Ben

misc viewport commands

while aligning viewports in paper space layouts some helpful commands are:

" VPSCALE " a command to list the scale of your viewport

" view " you can save a new model view; also notice the roll angle is the rotation.

This works for me while trying to align a location sketch to the same rotation angle as the master layout.

I will save the main viewport as the sheet number and then in the location sketch I will select the the saved viewport and set it current. ***make sure your viewport is unlocked***

Also the " UCSFOLLOW " command is set to be on (1) and the view will automatically change when you change the UCS. When " UCSFOLLOW " is (0), then when you change the UCS your view of the model won't rotate, only your crosshairs will change to the new UCS orientation.