Hello Team, We are starting off with Lucene Spatial implementation for some of the use cases:
A . Given "N" polygons and "M" points, find how many points lie inside each of the polygon. 1st Approach : For A, we indexed Polygons using WKT and using JtsSpatial strategy. I set the Level at 22 . This has resulted in huge number of terms. This was needed as I need the search to be near perfect. For Indexing, I used Point(Supplied as WKT) using Jts again with Level at 22 (Although I think specifying level at query time does not make much difference). For this, we used ""CONTAINS" . Output is coming but I am not sure if I am doing it the right way. Need suggestion. I am having following confusion: a. Will CONTAINS and IS WITHIN both work in the same way for the given scenario. I am ruling OUT INTERSECTS as that scenario is not appropriate. b. Second, are we missing something in getting the correct output. 2nd Approach : (Reversed) Indexed POINTS in WKT format. Passed Polygons in WKT using JTs as query and fired as INTERSECTS and WITHIN. In second approach, we are getting more output than the 1st approach. However, we are still not sure which is the best way to tackle this problem. Please suggest. "Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s). are confidential and may be privileged. If you are not the intended recipient. you are hereby notified that any review. re-transmission. conversion to hard copy. copying. circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient. please notify the sender immediately by return email. and delete this message and any attachments from your system. Virus Warning: Although the company has taken reasonable precautions to ensure no viruses are present in this email. The company cannot accept responsibility for any loss or damage arising from the use of this email or attachment."