Trimble Business Center

Erik Petersen posted 06-12-2023 11:24

Zoom precise to something like From: 100,100 to : -100,-100, then you should be able to zoom out at delete the points at the -100000 or whatever it is

Bo Warlick posted 06-12-2023 11:57

Thanks Erik. I didn't think to use Zoom Precise. It always gets locked in and wont let me zoom in or out. Looks like I should be able to use it now.

Marian Plucinski posted 06-12-2023 23:09

Looks like E and N are swapped.

Find one point with real life coordinates (global coordinates) that has local coordinates in your engineers custom coordinate system.

Calculate divergence angle for your global point.

Create new coordinate system:

Planar,

Central Lat and Long are your global point

False easting and northing are your Local coordinates

Scale factor as needed, maybe be 1.000 may not be. You have to assess it based on the information you have.

Rotation angle will be 90 degrees + divergence angle (or 90 - divergence angle), or -90 + divergence angle... one of those will work.

Voila.

Import your DWG in local coordinate system.

Turn or background maps, check how they fit.

Compare with your control points.

Ronny Schneider posted 06-13-2023 00:49

Have you tried MirrorObjects around an axis from 0,0 to let's say 1000000, 1000000? That should swap x and y values.