Buffer Analysis (Buffer) is one of the basic spatial operation functions of GIS, which refers to the analysis method of automatically establishing a certain width of area around points, lines and regions according to the specified distance. For example, in environmental governance, a certain width is often drawn around a polluted river to indicate the polluted area; for example, in an airport, a certain area is often drawn around the airport as a non-residential area according to health needs, and so on.
You can use the Buffer button or the Multi-Buffer button in Application to generate a buffer of a specified distance for one or more Geometries.
Buffer Zone Analysis support for Point Dataset, Line Dataset, Region DatasetCreate Buffer Zone. You can not only All ObjectsCreate Buffer Zone the entire Dataset, but also Create Buffer Zone only for selected objects.
Single buffer
Creates a buffer Creates a buffer Create a buffer
| Type | Illustration | Meaning |
| Point Buffer Zone Analysis. |  |
for a point object. For example, by creating separate buffers for two broadcast transmission stations, you can analyze the range of residential areas that can be covered by the signals transmitted by the two transmission stations, as well as the range of areas that can be covered by both. |
| Line Buffer Zone Analysis. |  |
for the line object. For example, two adjacent streets need to be expanded by 20 meters, create a buffer zone for them, and combine with comprehensive query to analyze the buildings that need to be demolished on both sides of the street after the street is widened. |
| Face Buffer Zone Analysis. |  |
for the face object. For example, create buffer zones for rivers and lakes, and analyze the areas where floods are most likely to occur. |
Multi-buffer
Creates a Multi-buffer Creates a Multi-buffer Creates a Multi-buffer
| Type | Illustration | Meaning |
| Point Multi-buffer Zone Analysis. |  |
for the point object. For example, analyze the area where the pollution source spreads from near to far. |
| Line Multi-buffer Zone Analysis. |  |
for the line object. For example, by generating a one-way Multi-buffer for the national boundary, the halo effect of the national boundary is created. |
| Face Multi-buffer Zone Analysis. |  |
for the face object. For example, the 20-km and 50-km Multi-buffer Zone Analysis of a desert in China can analyze the distribution of wind and sand in the desert, thus providing a reference for sand prevention and control. |
Related topics
