Coordinate System and Scale Factor

[shajahmadi]

When I change the coordinate system, it doesn't affect the scale factor, which it should. 

When I want to work on a drawing for a long road and implement it by GPS, I need it to be on the same coordinate system as my GPS. 

[Pointdump]

Hi @45eptop,
Design your corridor in either Grid or Ground, but stick to one or the other. If laying out with GPS, design everything in Grid. If you're laying out with a total station, design everything in Ground.
Dave

[45eptop]

thank you for the quick response.

I didn't design the corridor, my only job is to stake it.

[cyberflow]

Hi @Pointdump  do you know if there's a video of that presentation in 2010 at AU for the powerpoint ?

[ChicagoLooper]

@cyberflow 

2010?!

Don't know about 2010 but in 2019 Ken Martinez presented a class for a custom ground coordinate system in Civil 3D software and AutoCAD Map 3D software. You can  download class material and watch a video of that session >>HERE<<.

[Pointdump]

Hi Frank,
No, I've looked, and if Sinc made a video at AU it's lost.
Dave