rafter image scaling in autocad 2002
rafter image scaling in autocad 2002
(OP)
Hello,
I'm a transportation engineer and am trying to retrieve a particular intersection from an aerial drawing image(in the form of *.tif)to an autocad 2002 drawing. I would like to have the drawing in autocad to a prticular scale. How can I do this?
I'm a transportation engineer and am trying to retrieve a particular intersection from an aerial drawing image(in the form of *.tif)to an autocad 2002 drawing. I would like to have the drawing in autocad to a prticular scale. How can I do this?





RE: rafter image scaling in autocad 2002
scale = width in pixels * scale of tif image
------------------------------------
resolution in dpi
That should get you what you need.
An example, I have a quad map (scale 1" = 2000'), the width in pixels is 4873 and the resolution is 250 dpi.
So I insert it at the scale of
scale = (4873 * 2000)/250 = 38984
Hope that gets you what you need.
Mick