For example, to find all documents within five kilometers of a given lat/lon point, you could enter &q= :&fq=&sfield=store&pt=45.15,-93. Another way of looking at it is that it creates a circular shape filter. The geofilt filter allows you to retrieve results based on the geospatial distance (AKA the “great circle distance”) from a given point. (RPT & BBoxField can set other units via the setting distanceUnits) The radial distance, usually in kilometers. Input values can be expressed in degrees or in radians. If you only want the query to score (with the above score local parameter), not filter, then set this local parameter to false. The GEODIST function computes the geodetic distance between any two arbitrary latitude and longitude coordinates. (Advanced option not supported by LatLonType (deprecated) or PointType). So disable the following in the solrconfig.xml. Solr 4.x supports alternative geospatial method.
The following changes are done to make my Solr 4.x installation: SOLR2155 is only for Solr 3.x and it doesnt work on 4.3. 中心点坐标 “lat,lon” 。 Otherwise, “x,y” for PointType or “x y” for RPT field types. This is consolidation of information collected from various forums to setup spatial search on Solr 4.3 successfully. And with RPT, it’s only recommended for multi-valued point data, as the implementation doesn’t scale very well and for single-valued fields, you should instead use a separate non-RPT field purely for distance sorting.）当使用BBoxField的时候，支持一些额外的参数：overlapRatio 、area 和area2D LLPSF支持在 indexed, stored, docValues, 和multiValued的切换。 LLPSF 内部使用 Lucene “Points” 进行索引. 下面是LatLonPointSpatialField 在Schema中如何配置： SpatialRecursivePrefixTreeFieldType (简称RPT )，包括RptWithGeometrySpatialField.
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