Exported DXF from Autocad and Scaling group code/location

Hi, i am writing an application to import and process DXF files that
are output from AutoCad R14, and am comming across problems where the
DXF files have differently scaled systems.

Is there a group code in the header section that corresponds to the
exact scale that the drawing is at?
I've checked out this
http://www.autodesk.com/techpubs/autocad/acad2000/dxf/ but it's not too
helpfull.

I'm trying to figure out the scale auto-magically and would prefer to
leave user interaction out so they don't have to choose the scale if i
can.

Any suggestions would be welcome.

 

Hi
An AutoCAD drawing is _alway's scale one to one. Some who are used to
the oldfasion way alway's tried to use AutoCAD that way to, but this is
exactly what youu shuld not do --- one-to-one make sure there are no
problems or double calculations done by hand when you plot, when you
plot is when you set a scale .

Anyway if you write such progrem you proberly looked at the entity
yieled by entget, there are scale codes there , sorry I don't remember
these but you could try make a block and insert it in a scale you would
reconise, then use entget to check the entity codes.