Autotek autocad raster design 2010 用户手册

The Rubbersheet dialog box disappears and ProdNameShort prompts you
to select the first source point. You must select at least three pairs of
source points and destination points.

6 Select the first source point for the first control point on the image.

NOTE You can select points on specific raster entities by using raster snaps.

7 Do one of the following:

■

Specify the destination point to which the source point should be
moved.

■

Type a to anchor the selected point where it is.

■

Type u to undo the point and select the point again.

NOTE If you are using AutoCAD Land Desktop, you can substitute COGO
points by typing .p, .g, or .n when ProdNameShort prompts you to enter
destination points. For more information, see 

(page 82).

8 Select at least three more pairs of source and destination points, and then

press Enter to return to the Rubbersheet dialog box. Go to step 16.

9 Click the Grid Points button.

The Rubbersheet dialog box disappears and the Grid Parameters dialog
box appears.

10 In the Points section, choose how many rows and columns of points you

want to comprise the grid.

The total number of points in the grid is displayed at the bottom of the
Points section.

11 In the Grid section, enter the X and Y origins of the grid, or click the Pick

button to choose the grid origin directly from the drawing (pressing Enter
to return to the Grid Parameters dialog box).

12 In the Cell section, enter the X and Y sizes to determine the distance

between columns and rows (respectively), or click the Pick button to draw
a two-point rectangle representing the cell size directly in the drawing
(pressing Enter to return to the Grid Parameters dialog box).

13 Click the Preview button to see a representation of the grid in the drawing

(pressing Enter to return to the Grid Parameters dialog box).

Rubbersheeting an Image | 35