Contributor
Posts: 13
Registered: ‎07-07-2000
Message 1 of 3 (709 Views)

# Drawing scale conversion-from metric to imperial?

709 Views, 2 Replies
06-14-2000 02:37 PM
I wonder whether there is a way to convert a metric drawing into imperial by adjusting the drawing setting in the model space so that all the centimeters and meters can be read in inches and feet? Thanks for your help.
*Burke, Joe
Message 2 of 3 (709 Views)

# Re: Drawing scale conversion-from metric to imperial?

06-15-2000 12:09 AM in reply to: ss032298
"ss032298" wrote in message
news:ef22ce1.-1@WebX.SaUCah8kaAW...
> I wonder whether there is a way to convert a metric drawing into imperial
by adjusting the drawing setting in the model space so that all the
centimeters and meters can be read in inches and feet? Thanks for your
help.

ss,

You could set units to imperial and scale the entire drawing by the
appropriate factor. For instance, if the drawing was done in centimeters 1"
= 2.54cm so you'd scale it down by 1/2.54. To return the drawing to
centimeters scale it back up by 2.54 and reset units to decimal. Always
scale about the 0,0 point to avoiding moving things while scaling.

Another way to do it without altering the metric drawing is xref the metric
drawing into another file using imperial units and scale the xref as above.
This method is preferable if all you want to do is measure, i.e., "read in
feet and inches". If you want to make minor changes to the metric xref you
could use in place xref edit. If you need to make major changes you'll want
to use the first method.

None of this is elegant. I think AutoDesk needs to address this issue by
allowing a scale factor to be applied to measuring and drawing. Something
similar to the unit multiplier available with dual dimensions.

HTH
Joe Burke
Distinguished Contributor
Posts: 314
Registered: ‎12-11-2003
Message 3 of 3 (709 Views)

# Re: Drawing scale conversion-from metric to imperial?

06-17-2000 12:46 PM in reply to: ss032298
Hey ss032298,
I once recieved a drawing from England and when I tried to scale in Paper Space it was weird! So this is what i did. Iscaled the entire drawing using the reference option of the scale command. Iniate the scale command then select all then select reference base point @ (or 0,0) then for scale factor reference length type 25.4 enter then new length 1 enter.
AutoCAD is set up to draw in drawing units, for imperial 1 unit is one inch the smallest whole number that we use. One millimeter is the smallest that "they" use so a drawing drawn in metric is 25.4 time the size of imperial.
Try the following LISP. . .
(defun C:s25 ()
(command "_.scale" "ALL" "" "0,0" "r" "25.4" "1")
(princ))
Hope this helps!
eric

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