Geographic Information Systems

Questions tagged [elasticsearch]

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Elasticsearch is a distributed, open source search and analytics engine.

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Geocoding addresses including address cleaning and validation

I am tasked with building a geocoder (and in the long term reverse geocoder) from a local data I own. Since I am new to this and literature is relatively scarce, I would like to know what are some ...
2
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1answer
257 views

Better performance for geohash aggregation with PostGIS

I'm using the GeoNames (https://www.geonames.org/) dataset and want to aggregate the points in geohash of a specific precision. Beforehand I'm filtering with an bbox. So this is the query I came up ...
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24 views

Parsing text in feature class attachments

Is there any way to parse text in feature class attachments using ArcGIS Desktop? I have a feature class with ~60,000 features, all of which have an associated .pdf file. I would like to query the ...
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0answers
264 views

Provided shape has duplicate consecutive coordinates at: (-87.2576, 90.0, NaN) [closed]

I get the following error when I send POST request to GeoServer. This error occurs only with particular layer. Other layers work fine. <?xml version="1.0"?> <ServiceExceptionReport version="...
2
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1answer
277 views

Geoserver Point-to-Line Aggregation possible?

I'm trying to use Geoserver to serve a WMS displaying lines instead of points, but without changing the underlying data structure. Currently I'm displaying the data as simple points, which works fine. ...
8
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1answer
3k views

Calculating Optimal Geohash Precision from Bounding Box

I'm using Elasticsearch's GeoHash grid Aggregation to plot clusters on a map (using Leaflet). I understand that for larger areas a lower precision setting should be used to limit the number of buckets ...
1
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0answers
310 views

Get grid area from geographic coordinates

I have a list of geo coordinates. What I want is a list of grid areas and a number of geographic points in that area. By doing this I can get the information in which areas in the world the most ...
1
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2answers
1k views

Elasticsearch datastore for GeoServer

When searching for a possibility to use an Elasticsearch data store as a data source in GeoServer, I found this inofficial plugin. Its documentation states that you have to clone the Git repository ...
1
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1answer
254 views

ElasticSearch behaving different between cities

I'm experiencing some very strange behavior from Elasticsearch. I am using geo_bounding_box to search the area visible in Google Maps. I have data in New York and San Fransisco. New York behaves as ...
2
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2answers
2k views

Geocoding on OSM shapefiles via Elasticsearch

I want to get a geocoding system based on OSM data and Elasticsearch engine. I've tried some projects like komoot\photon, but, as I'm a really newbie in this, I stuck on preparing of the data for my ...
3
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1answer
2k views

Points of LinearRing do not form a closed linestring - one point intersection

I'm trying to index geojson data using elasticsearch. There is some kind of polygons that causing an error: "Points of LinearRing do not form a closed linestring". Looks like it happens because ...
2
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1answer
1k views

Converting OpenStreetMaps PBF to geojson with geocoding

I am able to convert PBF to geojson, but I lack the additional attributes like state, country, city, suburb, type of business etc which is offered by geocoding service like Nominatim. The geojson ...
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3answers
994 views

FME and elasticsearch

We are developing a system to disseminate information about roadkills. The source data comes from three different databases. We have set up a FME project which pulls geojson from the source databases, ...