Viewport adding 2% to viewport scale when inported from dwg

[John Whyte]

Im importing a drawing from a dwg that consists of :

- a design layer at 1:1

- a sheet layer

- a viewport at 2:1

But when i import it into vectorworks everything comes across fine about from the viewport its now at 2.020:1.

Similarly a viewport that should be 20:1 is coming in at 20.20:1.

Ive checked the original file in autocad and its correctly in at 2:1 and 20:1 respectively

Any idea why this is happening ?

Please see images below for more info (click on the images to see them larger)

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VWX 2014 Designer

OSX 10.9

Edited May 28, 2014 by John Whyte

[PVA - Admin]

We can certainly take a look, send that DWG to the address in my signature and we can confirm whats going on.

[John Whyte]

Thanks Jim,

Please find below link to download a copy of the dwg file, it contains 1 model layer (autocad's equivalent of a design layer) and 1 sheet layer with some viewports (some are meant to be 1:10 some are meant to be 1:2)

Link - https://www.dropbox.com/s/xe3cnms5v8kvzwn/for%20vectorworks%20scale%20check.dwg

[John Whyte]

Hi Jim,

Just wandered if you'd had a chance to look over that file ?

Thanks

John

[PVA - Admin]

Yes, sorry for the delay.

I am seeing the same things you are, however I am not fluent enough in ACAD to tell for sure if its something simple that can be changed before importing, or if it is something happening DURING import. I have submitted the file, I'll let you know as soon as i hear anything back.

[bcd]

I bet it has to do with a metric:imperial conversion of 25 instead of 25.4

[PVA - Admin]

Im guessing its either that (units mismatch) or a precision setting of some kind.

However I tried a few other imports of the same file picking different units manually rather than letting it determine them automatically, and the scale of the viewports was still off.

The scale of the objects on the design layer seems to be dead on however, which I have not seen before. Normally if one is off, they both are.