Hi Phil,
Thanks for this link - that might be an option indeed as well, as we do
have an ERDDAP server in the technology stack as well. Though ERDDAP as
well doesn't like the non-numerical dimensions - importing as tabledap
might work - but then again it is not possible to have that layer served
through the build-in WMS.
It is indeed basically a point with some attributes - in essence: point
geom - species name - presence/absence indicator (1/0)
Best regards,
Fred.
On 17.07.22 23:12, Phil Scadden wrote:
No geoserver per se, but I would draw your attention to the edal-java
system.
https://reading-escience-centre.gitbooks.io/edal-user-guide/content/exploring_datasets.html
The EDAL library provides the WMS service to the THREDDS 5+ netCDF
servers with extended capabilities. (ncWMS). It definitely requires
CF-compliant netCDF which I am not convinced your is, but it is more
tolerant and manages things like 5D netCDF which I need. As far as I
can tell the geoserver plugin does not use the EDAL libraries so it
might be worth you having a look. It will NOT grid to raster on the
fly if that is what are trying to do.
I would have to say that your dataset does not like conventional
netCDF target – more a standard point+attributes like we would use for
our fossil records. What are you expecting to see on a visualized map?
*From:*Frederic Leclercq <frederic.lecle...@vliz.be>
*Sent:* Saturday, 16 July 2022 12:13 AM
*To:* 'GeoServer Users' <geoserver-users@lists.sourceforge.net>
*Subject:* [Geoserver-users] (large) NetCDF in Geoserver
*Note:* External sender:
Hi all,
I'm trying to serve a NetCDF file (CF-compliant), however the shape is
not as I would expect. Well - the rationale is that the dataset isn't
a true gridded dataset and to prevent multiple unused cells it uses
'points' as a dimension.
The shape looks like this:
dimensions:
points = 292332 ;
string45 = 45 ;
taxon = 10830 ;
variables:
int Date(points) ;
float lat(points) ;
float lon(points) ;
float crs ;
char AphiaID(taxon, string45) ;
char Taxon_Name(taxon, string45) ;
byte Pres_abs(taxon, points) ;
I can't import this in Geoserver:
"Caused by: java.lang.RuntimeException:
java.lang.IllegalStateException: Unable to create envelope for this
dataset
at
org.geotools.imageio.netcdf.NetCDFImageReader.setInput(NetCDFImageReader.java:307)
at
java.desktop/javax.imageio.ImageReader.setInput(ImageReader.java:380)
at
org.geotools.coverage.io.netcdf.NetCDFAccess.<init>(NetCDFAccess.java:119)
... 152 more"
Is it related to the taxon dimension which is basically non-numerical
or should points be reshaped in a time/lat/lon structure? (which will
make this file very very large, as the points have not that many
lats/lons/dates in common)
On the other hand - points x taxon = 3165955560 values in the Pres_abs
variable - which is larger than 2^31-1 (and that is the maximum value
for an array in a java application) Before I dive into converting the
points dimension to lat/lon/time I would like to know if someone
managed to serve a quite large NetCDF into Geoserver.
Happy to read your ideas/help on this.
Thanks,
Fred.
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_______________________________________________
Geoserver-users mailing list
Please make sure you read the following two resources before posting to this
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- Earning your support instead of buying it, but Ian Turton:
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html
If you want to request a feature or an improvement, also see this:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
Geoserver-users@lists.sourceforge.net
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