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https://issues.apache.org/jira/browse/SOLR-2268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13132616#comment-13132616
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Teun Duynstee commented on SOLR-2268:
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I don't want to interfere with the process on this issue, but I can give my
perspective on this issue as a heavy user of both Solr and geospatial data (not
coming from the GIS field though).
In my opinion, the WKT format is a bit of a must if you want users of
geospatial data to take your solution seriously. Yes, it is verbose, and I'm
not sure how you should implement the actual storage, but you should be able to
regenerate the WKT data. Defining polygons is a lot more complex than you'd
think from the start. If you check out public datasets like the OpenStreetMap
data, you'll see that it is common for a geo-shape to have several parts, holes
and little islands inside the holes. All vendors of GIS tooling use this format
(actually, they use many, but WKT is the one they all use). If you're
interested in more concise ways of storing polygons, it could be worth looking
into the work Google did
(http://code.google.com/apis/maps/documentation/utilities/polylinealgorithm.html,
although be aware that these are lossy algorithms). WKB is meant to be smaller
and non-lossy.
Think of al the scenarios that open up when you can combine Solr search with
the output from other GIS-like systems. You could imagine calculating a polygon
of all places that you can drive to within an hour and facet on that (in
PostGIS on PostgresSQL, you can do routing on OpenStreetmap data using the
PGRouting module). I am very excited about the work that is done on the Lucene
Spatial Playground, wish I where capable enough to help.
> Add support for Point in Polygon searches
> -----------------------------------------
>
> Key: SOLR-2268
> URL: https://issues.apache.org/jira/browse/SOLR-2268
> Project: Solr
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Attachments: SOLR-2268.patch
>
>
> In spatial applications, it is common to ask whether a point is inside of a
> polygon. Solr could support two forms of this:
> # A field contains a polygon and the user supplies a point. If it does, the
> doc is returned.
> # A document contains a point and the user supplies a polygon. If the point
> is in the polygon, return the document
> With both of these case, it would be good to support the negative assertion,
> too.
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