Line length not correct after rotate

[I_SUSSEX]

Hi,
I'm doing some very accurate drgs, unit precision set to max in AutoCad 2007. Can anyone explain why when I rotate my baseline its not the same length it was when horizontal.
Cheers.

[riga]

Impossible!!! With just a rotation how can length change?
What you mean with baseline?

[ReMark]

How are you determining the length of the line? Are you using the DISTANCE command or the LIST command?

[I_SUSSEX]

I'm using both. I'm starting to think about redrawing in a new drg and pasting to original to see if that helps

[lpseifert]

The precision set in Units is for display only. Acad calculates to 16 decimal points (I think). So how far off is the distance... 10%, 1%, .001% ? What are the distances you are dealing with?

[I_SUSSEX]

The distance is stupidly small (0.00000003) but some bright spark is picking it up when id ing a coord. They're not a caddie so i'm gonna baffle them with techno babble.

[Hedgehog]

I can't get my lines to change length at all despite rotating them through all 3 dimensions... to 8 decimal places. It shouldn't happen

[I_SUSSEX]

when i get a mo i'll try and post a screen shot of wots going on.
Thanks for your help so far guys.

[I_SUSSEX]

Just so you can see (although not clearly)

New Picture (2).jpg

Thanks for your help guys.

[SLW210]

Are you sure you are snapped to the endpoint of the line? I have no problem here. Check the lengths with the _LIST command.