Multiple Ring Buffer (Analysis)

Summary

Creates multiple buffers at specified distances around the input features. These buffers can optionally be merged and dissolved using the buffer distance values to create nonoverlapping buffers.

Illustration

Usage

• If the input features have a projected coordinate system, planar buffers will be produced in the output. Ensure that the input features have a coordinate system that is suitable for distance analysis, such as an equidistant projection.

  If the input features have a geographic coordinate system, geodesic buffers will be produced in the output, as planar buffers of nonprojected features would be highly inaccurate.

  Learn more about geodesic and planar (or Euclidean) buffers

• If the dissolve all option is specified, the output feature class will contain one feature for each distance specified in the Distances parameter; all buffers that are the same distance from the input features will be dissolved together.

Parameters

Dialog

Label	Explanation	Data Type
Input Features	The input point, line, or polygon features to be buffered.	Feature Layer
Output Feature class	The output feature class that will contain multiple buffers.	Feature Class
Distances	The list of buffer distances.	Double
Distance Unit (Optional)	Specifies the linear unit that will be used with the distance values. Default —The linear unit of the input features' spatial reference will be used. If the Output Coordinate System geoprocessing environment has been set, the linear unit of the environment will be used. The linear unit is ignored if the input features have an unknown or undefined spatial reference. This is the default. Inches —The unit will be inches. Feet —The unit will be feet. Yards —The unit will be yards. Miles —The unit will be miles. Nautical miles —The unit will be nautical miles. Millimeters —The unit will be millimeters. Centimeters —The unit will be centimeters. Decimeters —The unit will be decimeters. Meters —The unit will be meters. Kilometers —The unit will be kilometers. Decimal degrees —The unit will be decimal degrees. Points —The unit will be points.	String
Buffer Distance Field Name (Optional)	The name of the field in the output feature class that will store the buffer distance used to create each buffer feature. The default is distance. The field will be of type Double.	String
Dissolve Option (Optional)	Specifies whether buffers will be dissolved to resemble rings around the input features. Non-overlapping (rings) — Buffers will be dissolved to resemble rings around the input features that do not overlap (think of these as rings or donuts around the input features). The smallest buffer will cover the area of its input feature plus the buffer distance, and subsequent buffers will be rings around the smallest buffer that do not cover the area of the input feature or smaller buffers. All buffers of the same distance will be dissolved into a single feature. This is the default. Overlapping (disks) — Buffers will not be dissolved. All buffer areas will be maintained regardless of overlap. Each buffer will cover its input feature plus the area of any smaller buffers.	String
Outside Polygons Only (Optional)	Specifies whether the buffers will cover the input features. This parameter is valid only for polygon input features. Unchecked—Buffers will overlap or cover the input features. This is the default. Checked—Buffers will be rings around the input features, and will not overlap or cover the input features (the area inside the input polygon will be erased from the buffer).	Boolean

Python

arcpy.analysis.MultipleRingBuffer(Input_Features, Output_Feature_class, Distances, {Buffer_Unit}, {Field_Name}, {Dissolve_Option}, {Outside_Polygons_Only})

Name	Explanation	Data Type
Input_Features	The input point, line, or polygon features to be buffered.	Feature Layer
Output_Feature_class	The output feature class that will contain multiple buffers.	Feature Class
Distances [distance,...]	The list of buffer distances.	Double
Buffer_Unit (Optional)	Specifies the linear unit that will be used with the distance values. Default —The linear unit of the input features' spatial reference will be used. If the Output Coordinate System geoprocessing environment has been set, the linear unit of the environment will be used. The linear unit is ignored if the input features have an unknown or undefined spatial reference. This is the default. Inches —The unit will be inches. Feet —The unit will be feet. Yards —The unit will be yards. Miles —The unit will be miles. NauticalMiles —The unit will be nautical miles. Millimeters —The unit will be millimeters. Centimeters —The unit will be centimeters. Decimeters —The unit will be decimeters. Meters —The unit will be meters. Kilometers —The unit will be kilometers. DecimalDegrees —The unit will be decimal degrees. Points —The unit will be points.	String
Field_Name (Optional)	The name of the field in the output feature class that will store the buffer distance used to create each buffer feature. The default is distance. The field will be of type Double.	String
Dissolve_Option (Optional)	Specifies whether buffers will be dissolved to resemble rings around the input features. ALL —Buffers will be dissolved to resemble rings around the input features that do not overlap (think of these as rings or donuts around the input features). The smallest buffer will cover the area of its input feature plus the buffer distance, and subsequent buffers will be rings around the smallest buffer that do not cover the area of the input feature or smaller buffers. All buffers of the same distance will be dissolved into a single feature. This is the default. NONE —Buffers will not be dissolved. All buffer areas will be maintained regardless of overlap. Each buffer will cover its input feature plus the area of any smaller buffers.	String
Outside_Polygons_Only (Optional)	Specifies whether the buffers will cover the input features. This parameter is valid only for polygon input features. FULL —Buffers will overlap or cover the input features. This is the default. OUTSIDE_ONLY —Buffers will be rings around the input features, and will not overlap or cover the input features (the area inside the input polygon will be erased from the buffer).	Boolean

Code sample

MultipleRingBuffer example (Python window)

The following Python window script demonstrates how to use the MultipleRingBuffer function in immediate mode.

import arcpy
arcpy.env.workspace = "C:/data/airport.gdb"
arcpy.MultipleRingBuffer_analysis("schools", "c:/output/output.gdb/multibuffer1", [10, 20, 30],
                                  "meters", "", "ALL")

MultipleRingBuffer example 2 (stand-alone script)

The following stand-alone script demonstrates how to use the MultipleRingBuffer function.

# Name: MultipleRingBuffer_Example2.py
# Description: Create multiple buffers for the input features
 
# Import system modules
import arcpy
 
# Set environment settings
arcpy.env.workspace = "C:/data/airport.gdb"
 
# Set local variables
inFeatures = "schools"
outFeatureClass = "c:/output/output.gdb/multibuffer1"
distances = [10, 20, 30]
bufferUnit = "meters"
 
# Execute MultipleRingBuffer
arcpy.MultipleRingBuffer_analysis(inFeatures, outFeatureClass, distances, bufferUnit, "", "ALL")

Environments

Default Output Z Value, M Resolution, M Tolerance, Output XY Domain, Output Coordinate System, Extent, Current Workspace, Geographic Transformations, Scratch Workspace, Output has M values, Output has Z values, XY Resolution, XY Tolerance, Z Resolution, Z Tolerance

Licensing information

• Basic: Yes
• Standard: Yes
• Advanced: Yes