[Member (365WT)]answers [Chinese ] | Time :2018-10-30 | Overlay analysis is a very important spatial analysis function in GIS. It refers to the process of generating new data through a series of set operations on two data under the unified spatial reference system. The data mentioned here can be the data set corresponding to the layer, or it can be a feature object. The goal of overlay analysis for overlay analysis is to analyze the interrelationship between spatial and exclusive attributes of spatial objects that have a certain correlation in spatial position. The overlay analysis of multi-layer data not only creates new spatial relationships, but also generates new attribute feature relationships, which can discover features such as mutual differences, connections, and changes between multiple layers of data.
Data 1
Input data
Data 3
Overlay result data Data 2
Superimposed data
Attributes
Spatial analysis function |
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