To Set the Correlation Defaults

1. Click Raster menu Options. The Raster Design Options dialog box is displayed.
2. Click the Image Defaults tab.
3. Under Insertion Point, type default insertion point coordinates in the X and Y boxes. The precision of this point depends on the precision value in the AutoCAD Units Control dialog box.
4. If you want to set an elevation for the frame, then type the elevation in the Z box.
   Note: This value is useful if you want to establish the elevation of a floorplan image, for example.
5. In the Scale box, type a default scale. Image scale does not change the scale of the vector drawing.
6. In the Rotation box, type a default rotation angle. The unit of measurement depends on the selected value in the AutoCAD Units Control dialog box.
7. Under Density , in the Value box, type a default density. This is usually the scanned resolution. For example, if the majority of your images are scanned at 300 dots per inch, type 300 in this box.
8. Under Density, in the Units box, type a default density unit. For example, if the majority of your images are scanned at 300 dots per inch, set Inches as the default.
9. Under Vertical Units, select either Meters or US Survey Feet.
10. Click OK to accept the defaults.