Choosing a spatial reference based on a field

The spatial reference updates the coordinate system based on the location of the area of interest (AOI) feature. You can use a field in the AOI data source feature class that contains a code that can be used to set the coordinate system.

Steps:

1. Click Select from Field in the Spatial Reference list.
2. Click the Field drop-down arrow and choose a field to use as the basis for the spatial reference.
   Note:

   The field must be populated with the factory codes for the coordinate systems you want to use.

3. Click Next.

   The Buffer dialog box appears.

4. Proceed to one of the following:

   Setting up a fixed bufferUsing the existing buffer