Begin the Import with the DLG Reader
Issue the command "dlgin" at the AutoCAD Command prompt. The software will take advantage of the AutoCAD demandload feature, whereby an application can "load itself" into memory when called upon to perform an action. This feature allows the AutoCAD user to have only the programs in memory necessary for the operations being performed during the session.
Using the Import Dialog Box in the DLG Reader
The dialog box that appears after the "dlgin" command is issued allows you to choose which DLGs you want to load from a list of all DLGs in the
directory. This is helpful since one "map" may consist of several layers of information. Note that additional information is displayed for each layer. All DLGs in the selected directory are automatically marked for
import; deselect the files you do not want with CTRL+left click. As you select different directories in the directory box, the dialog will display available files in the list box on the right. If you would like AutoCAD to
automatically zoom to the area where the DLGs are being imported, you can select the "Zoom to Import Extents" check box.
Select Directory for Input in the DLG Reader
This is a typical directory list box that allows you to navigate any of the drives and directories that are currently available to the local system. This
includes all "special" drives as well, for example, CD-ROMs, Jazz drives, network drives, etc.
DLG Reader File List Box
This list box allows you to select/deselect specific files in the currently selected directory. Extra information is displayed so that you can more easily
decide which files you need. Note that the USGS map name, layer name, and scale are included in this information.
Setting the Projection Parameters with the DLG Reader
The parameter box allows you to set the input map projection parameters (see figure below).
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