DXF defaults to imperial

[apetrovski3BZYW]

Hi everyone,

I have a problem when exporting a dxf file from a dwg with AutoCAD Civil 3D.

Civil 3D is in metric, so is the master template I am using. The drawing units are in meters, `MEASUREMENT` is set to <1>. 

If I export the dwg file to dxf and when I open the dxf file the scale tab displays in feets (see attached image 3.)

I can`t figure out where the bug is coming from. I also attached some images fyi.

Any help would be much appreciated!!!

Thanks!

[rl_jackson]

I'm not sure what the issue is here since 1=1 but if you upload a drawing file you'll get answers.. I don't do meters, and assuming you start with a meters only template like UKIE should mean its a meters drawing.

[apetrovski3BZYW]

i Rick, 

thanks for your answer!

This is just a test drawing I uploaded with dxf file  - it is happening with all drawings that I try to export to dxf.

The drawing is in metric. I only use metric and haven`t had this issue before at all!

 I exported the test.dwg to ACAD-test.dxf and when I opened the dxf file - the scale tab was in imperial.

Really sorry if this is confusing, i don`t know how else to explain what is happening.

I tried all commands in relation to drawing units (measurement, unitsdefsource...) and it doesn't seem to fix it.

I usually only open dxf to rename layers but I noticed the scale tab was displaying in imperial instead of metric (eg: 1:20, 1:100 etc.). 

Thank you!

[Jowennl]

HI @apetrovski3BZYW,

Can you please try message 2 of this <thread link>?

I think it has something to do with your legacy units. Check also that your units and -dwgunits set to meter. I have a routine attached in the thread link that will fix all of that for you.

Cheers,

Jowenn

[apetrovski3BZYW]

I am unable to attach the dxf file and that is where the problem is.

here is the screen shot that may help 😕

[Jowennl · Accepted solution]

Hi @apetrovski3BZYW,

Please see this link regarding dwg to dxf issue <AKN Link>. I tried your drawing and it seems to be drawing related problem. I also use C3D 2019 for my testing.

1) I use Test.dwg and use DXFOUT and created Test.dxf. This have issue with -dwgunits = 2 (feet). 

2) I created a new dwg click insert and use Test.dwg to insert and explode, save then use DXFOUT to create dxf and this show my -dwgunits = 6 (Meter)

3) With scale list problem, maybe you can just use a script to drag and drop then overwrite them to your standard.

4) See attached zip file to view animated gif and sample script.

5) Please try c3d_m_units.scr and RELOADSCALE.SCR

Lastly, also check which AUTOANNOSCALE you want to use 4 or -4. Mine I set to -4 as I don't want to auto attach anno but maybe you might want to auto attach it.

Good luck.

Cheers,

Jowenn

[apetrovski3BZYW]

Hi Joewnn, 

Thanks very much for your help and effort! Dragging the script c3d_m_units.scr worked and fixed the problem!

I still don`t understand how this happened in the first place as all my settings were correct and set to metric.

[aesign1]

hi,

i solved it by inserting instead of importing command.. tnx for the GIF.