2011

Table Of Contents
If you modify the correlation settings, AutoCAD Map 3D saves the changes
with the drawing. The changes are not saved back to the image file or to the
correlation source file.
NOTE To modify the settings stored in the image file, use an image-editing
application such as . If you modify the original settings in the image, you must
reinsert the image to see the changes.
Correlation Settings
Correlation Source Displays available correlation sources. (See the
Correlation Sources section, following.) If a source is not listed, it may not
be in the same directory as the image file or, if it is a resource (.res) file, it
may not be on the specified resource file path.
NOTE To specify the path for resource (.res) files, at the Command prompt,
enter mapioptions. Select the Paths tab.
Insertion Point The insertion point is the lower left corner of the image
before any rotation is applied.
The insertion point values on the Source tab of the Image Insertion dialog
box use the unit specified at the bottom of the Source tab. The insertion
point values on the Insertion tab are translated to the current AutoCAD
Map 3D drawing unit.
You can edit the settings or select an insertion point in the drawing by
clicking Pick on the Insertion tab and then picking a location in the
drawing.
Rotation Rotation is in degrees or in the units set by the AUNITS variable.
The image is rotated around the insertion point.
Scale If the image you insert contains correlation information, the image
is inserted at the scale specified by that information. Otherwise, the image
is inserted at a scale factor of 1 image unit of measurement to 1 AutoCAD
Map 3D unit of measurement. You can change the scale to align the image
with the vector geometry in the drawing. For example, if your raster image
has a scale of 1 inch equals 50 feet or 1:600, and your AutoCAD Map 3D
drawing has a scale of 1 unit equals 1 inch, enter 600 as the scale on the
Insertion tab.
Density For bitmaps, the density unit used in the image may be in dots
per inch. For satellite photos, the density may be in miles. This unit is also
used for the insertion point.
Using Other Raster Image Formats | 463