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Questions tagged [geomesa]

GeoMesa is an open-source, distributed, spatio-temporal database built on top of different cloud data storage systems such as Accumulo, HBase, Cassandra, and Kafka. It aims to provide spatial querying and data manipulation functionalities to those databases in the same fashion as PostGIS does to Postgres.

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How to retrieve raster data in GeoMesa with a single query given tempospatial search criteria

According to How are GeoTIFFs persisted in GeoMesa? GeoMesa's raster data is indexed by spatial extent solely. Can I also save time info with the raster data? Else, for each raster I will have to persist another record holding its time info.…
Mike Argyriou
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Geomesa: saving KML in Accumulo

How can I save KML data in Geomesa? My main interest is programmatically and not with a Geomesa cmd line tool. Of'course a spatial index should be used.
Mike Argyriou
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Cassandra Command Line Tutorial

I am trying to run the command line tutorial for Cassandra and am running into an error. This is what I ran. bin/geomesa-cassandra ingest --contact-point localhost --key-space mykeyspace --catalog mycatalog --converter example-csv --spec example-csv…
mkeller
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GeoMesa and lambda data store

GeoMesa provides a lamda data store based Accumulo and Kafka (http://www.geomesa.org/documentation/current/user/lambda/index.html). But it also provides Storm and Spark support for offline and online analytics. Can you please list some use cases for…
Mike Argyriou
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Does GeoMesa accept only single-band images?

According to https://github.com/locationtech/geomesa/tree/master/geomesa-accumulo/geomesa-accumulo-raster the GeoMesa accepts only single-band images. Therefore, in order to import to GeoMesa a colorful image I have to import (e.g.) 3 sing-band…
Mike Argyriou
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Indexing JSON in GeoMesa

Assume I want to perist JSON files in GeoMesa (on Accumulo). These JSON files have geometries and time. Can I use a XZ3 index? If yes then how? NB: By JSON I am not refering to GeoJSON.
Mike Argyriou
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Geomesa TrackLabel WPS process

I am trying to display the current position of every device registered in my geomesa-accumulo database through geoserver's WPS. Since each device sends its position every X seconds. I am using geomesa's TrackLabel process to get the last position of…
jramirez
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geomesa add-attribute-index fails

I am trying to add an index to my existing table using the following command (run inside accumulo-master docker image) geomesa add-attribute-index -u root -p secret -i gis -z SERVER_IP -c posiciones -f posicion -a id_posicion --coverage join But…
jramirez
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GeoMesa Native API (Accumulo) - Polygon intersection filter: missing "the_geom" in SimpleFeature

I am ingesting data from a shapefile (the TM_WORLD_BORDERS-0.3.shp) into geomesa (on accumulo) via the native api. I then want to, again using the Native Api, query the data for anything in geomesa that contains a point (lat,lon), given by the user…
Andrew Schenck
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Can GeoMesa handle point with a time line segment

i know that GeoMesa can index spatial-temporal shape like a space line segment with a timestamp tag, but in my work, one object may stay at a location(Point) for a period of time (logintime+duration), so how can i handle such line segment in time…
NookLook
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Geomesa Location Indexing Is Not Accurate

I'm using Geomesa indexing used library for indexing 3D location data (Longitude, Latitude, Time) into 1D indexed data. Here's my Scala code var z3Indexer = new Z3SFC(TimePeriod.Month); var z3 = z3Indexer.index(24.664152, 46.692425, 2678400) var…
Mohamed Seif
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Using Date or Long type in geomesa accumulo for storing timestamp value

I am using geomesa for indexing over acccumulo storage. I have an attribute which stores timestamp values. I am confused between which TYPE and INDEX to use for storing timestamp values depending upon index performance. There are two cases Using…
Suresh Prajapati
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Geomesa accumulo storing null Point for geometry

I am using Point geometry type in geomesa for strong lat-long details in feature type. In on of the use case while storing a new feature I don't have value for lat-long so I tried sending null object for createPoint function, but the library 'jts'…
Suresh Prajapati
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Unable to query with two attribute indexes in geomesa feature type

I am querying a geomesa feature which includes join index on two attributes(r and di). Query r= runs and returns data for specified r value if any. However Query di= doesn't finds any matching records though records for the…
Suresh Prajapati
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Geomesa Feature Count always returning zero

I am developing geomesa client to perform basic read write and delete operations. I have also created a function which will return matching feature count for specified query, however it always returns zero, i also tried DataStore stats for fetching…
Suresh Prajapati
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