Question

Briefly describe each of the following types of spatial joins, in terms of feature geometry, spatial relationships, cardinality, and the final product of the join.

a. Simple Inside Join
b. Summarized Inside Join
c. Simple Distance Join
d. Summarized Distance Join

Answer 1

Spatial joins in GIS can be categorized as Simple Inside, Summarized Inside, Simple Distance, and Summarized Distance Joins, each differing in terms of feature geometry relations, cardinality, and aggregation of attributes.

Step-by-step explanation:

Types of Spatial Joins

In geographic information systems (GIS), spatial joins are used to combine data based on the locations of the features. There are various types of spatial joins, each with specific characteristics and uses:

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The final product of these joins varies depending on the join type. A simple join will result in a direct match of attributes, whereas a summarized join provides aggregated data information like sums, averages, or counts.