rafter image scaling in autocad 2002 1

[chinnu1996]

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?

 

[mickcwa]

insert the raster image at the following scale:

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