Autotek autocad raster design 2010 用户手册

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Image  ➤  Correlate  ➤  Displace

Raster Design Toolbar

Command Line

idisplace

You can match the scale of an image to the scale of a vector drawing or another
image.

1 Click Image menu  ➤  Correlate  ➤  Scale.

2 Select an image to scale by clicking its image frame.

3 Select a base point for the scale. This point acts as an anchor point for

the image as its dimensions are scaled.

NOTE You can select a point on the image frame by using object snaps, or
you can select points on specific raster entities by using raster snaps.

4 Define the source distance factor by typing a value or by selecting two

points to define the distance.

For example, if you want to match the scale of one image to another
image, select two points on the source image that you want to match
with points on the image that is correctly scaled.

5 Define the destination distance by typing a value or by picking two points

to define the distance.

For example, select two points on the correctly scaled image that you
want the source image to align with. If the source and destination distance
factors are the same value, then the image will not be scaled.

30 | Chapter 2   Inserting and Correlating Images