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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi all!I've been checking the nectdfsubset for a couple of grids with 2-dimensional coordinate axis values and everything seems to work fine but the latitudes and longitudes in the responses are wrong. I first sent an opendap request to the server to get the lat and the lon for a grid point:
http://mandeo.meteogalicia.es/thredds/dodsC/modelos/SWAN/artabro/20101110/artabro_20101110.nc.ascii?lon[39][62],lat[39][62],hs[0][39][62]then with the lat, lon values from the opendap response in a netcdfsubset request I got the same values for the variables but different lat and lon: http://mandeo.meteogalicia.es/thredds/ncss/grid/modelos/SWAN/artabro/20101110/artabro_20101110.nc?var=hs&latitude=43.47266&longitude=-8.487085&time_start=2010-11-10T12%3A00%3A00Z&time_end=2010-11-14T00%3A00%3A00Z&temporal=point&time=2010-11-10T12%3A00%3A00Z&vertCoord=&accept=xml&point=true The problem, I think, is somehow in the netcdfsubset the order of the indexes of the dimensions is changed because if I change the order of the indexes in the opendap request I get the same lat and the lon in the nectdfsubset response:
http://mandeo.meteogalicia.es/thredds/dodsC/modelos/SWAN/artabro/20101110/artabro_20101110.nc.ascii?lon[62][39],lat[62][39]and if the point is outside of the square delimited by the smaller dimension you get a 500 server error response and an ArrayIndexOutOfBoundsException:
2010-11-11T19:57:03.248 +0100 [ 6187513][ 1043] ERROR - thredds.server.ncSubset.GridServlet - GridServlet.processGridAsPoint
java.lang.ArrayIndexOutOfBoundsException at ucar.ma2.Index2D.setDirect(Index2D.java:135) at ucar.ma2.ArrayDouble$D2.get(ArrayDouble.java:295)at ucar.nc2.dataset.CoordinateAxis2D.getCoordValue(CoordinateAxis2D.java:76)
at ucar.nc2.dt.grid.GridCoordSys.getLatLon(GridCoordSys.java:1170)at ucar.nc2.dt.grid.GridAsPointDataset.readData(GridAsPointDataset.java:100) at thredds.server.ncSubset.GridPointWriter.write(GridPointWriter.java:255) at thredds.server.ncSubset.GridServlet.processGridAsPoint(GridServlet.java:271)
at thredds.server.ncSubset.GridServlet.doGet(GridServlet.java:183) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at thredds.servlet.filter.RequestQueryFilter.doFilter(RequestQueryFilter.java:121) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at thredds.servlet.filter.RequestPathFilter.doFilter(RequestPathFilter.java:105) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:619) I'm working with the 4.2.20101001.2254 - 20101001.2254 version. Cheers!!
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