delete_me.netcdf-subset-service's Introduction

NetCDF Subset Service

Prerequisites

This project uses the grails wrapper, therefore the only prerequisite is a JRE/JDK. To run:

$ ./grailsw run-app

Usage

http://localhost:8080/netcdf-subset/subset?typeName=${LAYER_NAME}&CQL_FILTER=INTERSECTS(${GEOMETRY_ATTR},${GEOMETRY_LIT}) AND ${TIMESTAMP_ATTR} >= '${FROM_TIMESTAMP}' AND $(TIMESTAMP_ATTR) <= '${TO_TIMESTAMP}'

Where

LAYER_NAME is the geoserver layer name
GEOMETRY_ATTR is the layer's geometry attribute
GEOMETRY is a geometry expressed in WKT format
TIMESTAMP_ATTR is the timestamp attribute to filter on
FROM_TIMESTAMP is the from time in ISO 8601 Combined date and time format
TO_TIMESTAMP is the to time in ISO8601 Combined date and time format

Example (using curl and encoding URL parameters):

$ curl -L "http://localhost:8080/netcdf-subset/subset" \
       --data-urlencode "typeName=anmn_timeseries" \
       --data-urlencode "CQL_FILTER=INTERSECTS(geom,POLYGON((113.33 -33.09,113.33 -30.98,117.11 -30.98,117.11 -33.09,113.33 -33.09))) AND TIME >= '2015-01-13T23:00:00Z' AND TIME <= '2015-04-14T00:00:00Z'" \
       > test.zip 2> /dev/null

$ unzip -l test.zip 
Archive:  test.zip
 Length   Method    Size  Ratio   Date   Time   CRC-32    Name
--------  ------  ------- -----   ----   ----   ------    ----
      18  Defl:N       20 -11%  04-20-15 11:15  082c8fdd  TestFile.nc
--------          -------  ---                            -------
      18               20 -11%                            1 file

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