What is a buffer, what is buffer analysis and what is it used for

<>1. Analysis: Buffer analysis is one of the basic spatial operation functions of GIS, which refers to the polygon of a certain width that is automatically established around the solid body of points, lines, and polygons.

2. Uses: 1. There is a dangerous goods warehouse in a certain area, and it is necessary to analyze the scope of the warehouse **, which requires a point buffer analysis.

2. In the fight against wild animals.

In the evaluation of habitats, the activity area of the animal is often within a certain distance from the water source or habitat required for the survival of its predecessors, for which the surface buffer can be analyzed.

Analysis of <> buffer slag tung defeat area and its use:

1. Analysis: Buffer analysis is one of the basic spatial operation functions of GIS, which refers to the polygon of a certain width that is automatically established around the solid of points, lines, and polygons.

2. Uses: 1. There is a dangerous goods warehouse in a certain area, and it is necessary to analyze the scope involved in the warehouse, which requires a point buffer analysis.

2. In the evaluation of the habitat of wild trembling animals, the activity area of animals is often within a certain distance from the water source or habitat required for their survival.

Buffers, also known as caches, are a portion of memory space. That is, a certain amount of storage space is reserved in the memory space to buffer the input or output data. This reserved space is called the buffer.

A buffer is a container with a fixed amount of data, and its function is a memory or a segmented transfer area where data can be stored and later used for retrieval.

The four properties of buffering.

1.Capacity (capacity).

Refers to the maximum number of data elements that can be slipped to hold in the buffer. This capacity is set when the buffer is created and cannot be changed.

2. Upper limit (limit).

The subscript index of the array of the first element that cannot be read or written in the reference buffer. It can also be thought of as the actual number of elements in the buffer.

3.Location. Refers to the index of the next element to be read or written. The value will be automatically updated with a call to get() or put().

4.Mark (Mark).

Refers to the memo location. Call mark() to set mark = position, and Ming He call reset() to set position = mark. Tags are undefined until they are set.

A buffer is a kind of influence or service scope of a geospatial target, which specifically refers to the multi-faceted area of a certain width that is automatically established around the point, line, or polygon entity, and is mathematically expressed as: bi=(x:d(xi,oi) r).

There are many types of buffers, such as triangles, rectangles, and diamonds for point objects, two-sided symmetry, two-sided asymmetry, or one-sided buffers for line objects, and inner and outer buffers for polygon objects. Suitable for different applications.

Buffers in your computer.

A buffer is a memory that temporarily holds output or input data.

The data in the buffer is stored in the buffer from a storage device (such as a hard disk) and placed in the buffer, and must be sent to the CPU or other computing device in standby.

The Chinese translation of buffer comes from the fact that when the high-speed part of the computer communicates with the low-speed part, the output of the high-speed part must be temporarily stored somewhere in the finger skin to ensure that the high-speed part coincides with the low-speed part. Later this meaning was extended and became"Temporary storage area"meaning.