Topic: Is this .dwg metric?

[Mark]

How to find out if your drawing is in metric units using autolisp?

[T.Willey]

Measurement system variable.

[Bryco]

I use "insunits 4 "  4,5 & 6
While measurement should work it is about hatch

[T.Willey]

I use "insunits 4 "  4,5 & 6
While measurement should work it is about hatch

I thought measurement was about anything stock that had two files, one for empirical and one for metric.  Like linetyles, so it knows which file to grab the info from.

[Bryco]

I think you should be right, it's just that I had to mess with a whole job that had metric templates that didn't use iso linetypes and metric hatch settings. Bloody hassle.

[Kerry]

How to find out if your drawing is in metric units using autolisp?

Just to show that we can read questions ;

Code: [Select]

(IF (= 1 (GETVAR "MEASUREMENT"))
    (ALERT "Metric Drawing")
    (ALERT "English Imperial Drawing")
)

System Variable MEASUREMENT
Sets drawing units as English or metric for the current drawing only. Specifically, MEASUREMENT controls which hatch pattern and linetype files an existing drawing uses when it is opened.

0   English; AutoCAD uses the hatch pattern file and linetype file designated by the ANSIHatch and ANSILinetype registry settings.
1   Metric; AutoCAD uses the hatch pattern file and linetype file designated by the ISOHatch and ISOLinetype registry settings.

The drawing units for new drawings are controlled by MEASUREINIT (MEASUREINIT uses the same values as MEASUREMENT). The MEASUREMENT setting of a drawing always overrides the MEASUREINIT setting.