Re: Spatial Join Query

[Jia Yu]

Hello,

For RDD API, the format is as follows: JoinQuery.SpatialJoinQuery(objectRDD, queryWindowRDD, usingIndex, considerBoundaryIntersection)

Left side is covered by the right side

You need to make sure you choose to consider boundary intersection.

On Tue, Oct 13, 2020 at 11:35 PM Hori <hr.9.ke...@gmail.com> wrote:

The following explanation is available on the Apache Sedona site and I would like to confirm that I understand it correctly.

"For each geometry in A, finds the geometries (from B) covered/intersected by it. A and B can be any geometry type and are not necessary to have the same geometry type."

For example, I will run a Spatial Join Query with the following polygon and point RDD.

JoinQuery.SpatialJoinQuery(PolygonRDD, PointRDD)

Is this correct in the sense that it returns a pair of points in the each polygon range?

Also, if two RDDs are both points, will a pair of points with the same coordinates be returned, since they only intersect at the same coordinates?

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