Buffer in ArcGIS

The buffer distance parameter can be entered as a fixed value or as a field containing numeric values.

Usage

• The two basic methods for constructing buffers, Euclidean and geodesic.
• Euclidean buffers are the more common type of buffer and are appropriate when you’re analyzing distances around features.
• Geodesic buffers may appear unusual on a flat map.
• Euclidean buffers measure distance in a two-dimensional Cartesian plane, where straight-line or Euclidean distances are calculated between two points on a flat surface.
• Geodesic buffers for the actual shape of the earth, calculated distances between two points on a curved surface..

Buffer Tool in ArcGIS

Creates buffer polygons around input features to a specified distance. The buffer routine traverses each of the input feature’s vertices and creates buffer offsets. Output buffer features are created from those offsets.

Perform Buffer in ArcMap

Create a buffer around selected points, lines, or polygon (area) features. Buffered features are created as line or polygon features using the settings of the chosen feature template.

Staps :

In ArcMap Add your Data (ex.- rec_sites)

1. Open ArcToolbox, go to Analysis Tools > Proximity > Buffer.

You can also use the shortcut method to open the Clip tool. select Geoprocessing Tab, dropdown, and choose Buffer.

The Buffer analysis tool window appear, fill all the parameters.

2. In the Input Features section, browse and select data (ex.- rec_sites).

3. The Output Feature class section, go to destination folder and write the valid file name (ex.- buffer_zone).

4. In the Distance [value or field) section, choose buffer distance, and select unit (ex.- 1 kilometers)

5. In the Dissolve section, choose ALL.

6. Click the Enviroments button, set the processing extent, choose Same as layer rec_sites. Click OK button to close Enviroment setting window.

7. Finally click OK button to close the buffer tool window.

Now show your Buffer result.