Guide | Dingkang Teng

Buffer Analysis

Tue, 10 Feb 2026 00:00:00 +0000

Description

This is the main script for buffer analysis. It builds multi‑ring buffers around source points and counts target features within each buffer ring, specifically designed for sensitive analysis.

Toolbox script Structure

The tool requires the following :

Input Parameters

Source POI Layer

This field specifies the point layer containing the source POIs (centers of the buffers).

Select zone name field of source POI

This field specifies the field that defines zones (e.g., districts) for the source POIs. If you do not need to calculate by zone, select a field where all values are identical.

Target POI Layer

This field specifies the point layer containing the target POIs to be counted within the buffers.

Select zone name field of target POI

This field specifies the field that defines zones for the target POIs. If you do not need to calculate by zone, select a field where all values are identical.

Note

Ensure that the values in the and correspond to the same zones. It is strongly recommended to use the to generate the zone name field.

Buffer (Meter) Syntax (Python)

This field defines the buffer radii in meters using a Python list comprehension.

Example

Define specific buffer distances (e.g., 10, 20, 50, 100, 500, 1000 meters)
```
[10, 20, 50, 100, 500, 1000]
```
Generate a range of distances from 10 to 2000 meters with an interval of 10 meters
```
[10 * x for x in range(1,201)]
```

Save path

Enter the base name for the output CSV file (do not include the .csv extension).
The results will be saved as CSV files.

Run the script

After setting all parameters, click Run to execute the script.

Result structure

The result contains four columns:

city: The name of the zone, as defined by the .
distance: The radius of the buffer (in meters).
Num: The number of points within the buffer for the corresponding city and distance.
totalNum: The total number of points within the corresponding city.

Buffer Analysis (Area)

Tue, 10 Feb 2026 00:00:00 +0000

Description

This is a specialized script that performs buffer analysis based solely on the buffer area. It builds multi‑ring buffers around source points and calculates the area of each buffer ring intersecting with the specified district boundaries.

Toolbox script Structure

The tool requires the following :

Input Parameters

Source POI Layer

This field specifies the point layer containing the source POIs (centers of the buffers).

Select zone name field of source POI

This field specifies the field that defines zones (e.g., districts) for the source POIs.

Disrict Layer

This field specifies the polygon layer define the boundary of each zone.

Select zone name field of district layer

This field specifies the field that defines zones for the polygon layer.

Note

Ensure that the values in the and correspond to the same zones. It is strongly recommended to use the to generate the zone name field for the from the .

Buffer (Meter) Syntax (Python)

This field defines the buffer radii in meters using a Python list or list comprehension.

Example

Define specific buffer distances (e.g., 10, 20, 50, 100, 500, 1000 meters)
```
[10, 20, 50, 100, 500, 1000]
```
Generate a range of distances from 10 to 2000 meters with an interval of 10 meters
```
[10 * x for x in range(1,201)]
```

Save path

Enter the base name for the output CSV file (do not include the .csv extension).
The results will be saved as CSV files.

Run the script

After setting all parameters, click Run to execute the script.

Result structure

The result contains four columns:

city: The name of the zone, as defined by the .
distance: The radius of the buffer (in meters).
Num: The area of the buffer ring (in square meters) intersecting with the corresponding city boundary for the corresponding city and distance.
totalNum: The total area (in square meters) of the corresponding city.

District Divide

Tue, 10 Feb 2026 00:00:00 +0000

Description

This is an auxiliary script that divides POIs by polygon for buffer analysis.

Toolbox script Structure

The tool requires the following :

Input Parameters

Input Layer

This field specifies the point layer that needed to be divided.

Zone Division Layer

This field specifies the polygon layer define the boundary of each zone.

Select zone name field

This field specifies the field that defines zones for the polygon layer.

Save path

Enter the base name for the output.
The results will be automatically saved as shapefiles (.SHP) or feature classes in a file geodatabase, depending on the output path you specify.

Run the script

After setting all parameters, click Run to execute the script.

Result structure

The output contains a field that stores the zone names, named after the you selected.