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Working with Spatial Data Using SAS/GIS Software

Importing DLG Data

To import spatial data in Digital Line Graph (DLG) format using the GIS Spatial Data Importing window:

Select DLG using the Import Type pull-down control.
The title of the file name field in the Input area changes to Digital Line Graph file name.
Specify the path to the desired DLG file, either by typing the path in the file name field or by using the pull-out control to display a file requestor window, and then choosing the file from that window.SAS/GIS software checks whether the DLG file type is Standard or Optional and processes the types accordingly.
SAS/GIS allocates the SAS fileref DLGIN to the import path you specified in the file name field. If you allocate the fileref DLGIN to the desired file before beginning the import process, the file name and path will appear in the file name field automatically.
Modify the destination information for the catalog and the spatial data sets, if needed. See The SASHELP.GISIMP Data Set for more information.
Modify the default layers and composites, if needed. See Common Importing Procedures for more information. No more than one layer of each type can be created from a DLG file. The fields for any layer types that cannot be created are grayed.
Select [Import] to import the data. When the import process is complete, a message is displayed in the message bar to indicate whether the import was successful. You can proceed with another import or close the window to display the newly imported map.

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