Setting up a fixed buffer
The buffer represents a space around a particular feature in spatial or linear units. You choose to configure your own fixed buffer using the Fixed Buffer option.
步骤:
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Click Fixed Buffer.
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Type a numeric value in the Distance text box.
This is the value that will be associated with the buffer for each AOI feature.
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Click the Map Units or Page Units option.
If you choose Map Units, the buffer is calculated based on map units within the data frame. For example, a 100 kilometer distance can be maintained in map units between the edge of your AOI and the edge of the data frame.
If you choose Page Units, the units create a buffer around your area of interest (AOI) in page units. For example, a page distance of 1 centimeter between the edge of your AOI and the edge of the data frame can be maintained.
- Click the drop-down arrow for the units you have chosen and choose the unit of measurement you want to use in association with the distance designated in the Distance text box.
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Click Next.
The Scale and Extent dialog box appears.
- Proceed to one of the following:
10/2/2010