Image Defaults Tab (AutoCAD Raster Design Options Dialog Box)

Use this tab to set correlation defaults. The values set on this tab are used on the Source tab of the Image Insertion dialog box and wizard. For more information, see Correlating Images. You can correlate the image data that is stored in the image file header, in a resource file, or in the drawing file. However, some images may not have any correlation data. For those cases, you can specify default correlation data.

Note: Setting the correlation defaults can save you time if you have multiple images that require the same insertion point, scale, rotation, and density.

Insertion Point

Specifies default X, Y, and Z AutoCAD coordinates to define the lower-left corner of images.

Scale

Specifies a default numeric scaling factor for images.

Rotation

Specifies a default angular rotation for images.

Density

Specifies the default image density value (or resolution), typically in dots per inch or per centimeter. For more information, see Changing Image Density. You should set the value to the most common density value at which your images are scanned.

If you insert images that include density value and density unit information, then these defaults are not used.

Vertical Units

Specifies the default unit of measure for elevations. Select either US Survey Feet, or Meters.