Hi,
Is your aim to show a little bit less image data clipped with the BBOX in
CQL_FILTER inside a bigger bbox that is defined by the basis WMS bbox? I have
never thought about such use case and I am pretty sure that you will not
success with it by using image mosaic but perhaps there is some other way. The
meaning of footprint polygons in image mosaic is just to act as on index for
finding the right image files. I mean, to find the footprints which intersect
with the WMS BBOX parameter and then open the corresponding image files from
the disk.
-Jukka Rahkonen-
________________________________
Stephen Brooke wrote:
I’m using Geoserver 2.5.1 with PostGIS 2.1.3 and the ImageMosaic plugin. I
have successfully been able to use CQL_FILTER to query a my ImageMosaic layer
by time and by my own custom attribute, now I am trying to create a spatial
query using something like:
CQL_FILTER=BBOX(the_geom, 48.46, 19.04, 49.4, 19.07)
and the full WMS GetMap request looks like:
wms?service=WMS&version=1.1.0&request=GetMap&layers=GeoCenter:gc_mosaic_hd&styles=&bbox=48.4598350524902,19.0338842710851,49.44959107524,19.0846311684303&width=6436&height=330&srs=EPSG:4326&format=application/openlayers&CQL_FILTER=BBOX(the_geom,
48.46, 19.04, 49.4, 19.07)
The raster column created by the ImageMosaic plugin is called “the_geom” and is
of type “geometry(Polygon, 4326)”. When I use the GeoServer Layer Preview with
OpenLayers and add something like “&CQL_FILTER=BBOX(the_geom, 48, 18, 49, 19)”
to the WMS GetMap URL I get no images and the GeoServer log has the below
stacktace:
Caused by: org.geotools.data.DataSourceException: Unable to create this mosaic
at
org.geotools.gce.imagemosaic.RasterLayerResponse.prepareResponse(RasterLayerResponse.java:1387)
at
org.geotools.gce.imagemosaic.RasterLayerResponse.processRequest(RasterLayerResponse.java:1228)
at
org.geotools.gce.imagemosaic.RasterLayerResponse.createResponse(RasterLayerResponse.java:1194)
at
org.geotools.gce.imagemosaic.RasterManager.read(RasterManager.java:1125)
at
org.geotools.gce.imagemosaic.ImageMosaicReader.read(ImageMosaicReader.java:849)
at
org.geotools.gce.imagemosaic.ImageMosaicReader.read(ImageMosaicReader.java:828)
at
org.geoserver.catalog.SingleGridCoverage2DReader.read(SingleGridCoverage2DReader.java:146)
at
org.geoserver.catalog.CoverageDimensionCustomizerReader.read(CoverageDimensionCustomizerReader.java:200)
at
org.geoserver.catalog.CoverageDimensionCustomizerReader.read(CoverageDimensionCustomizerReader.java:190)
at
org.geoserver.wms.map.RenderedImageMapOutputFormat.readBestCoverage(RenderedImageMapOutputFormat.java:1296)
at
org.geoserver.wms.map.RenderedImageMapOutputFormat.directRasterRender(RenderedImageMapOutputFormat.java:861)
... 107 more
Caused by: java.lang.ClassCastException: com.vividsolutions.jts.geom.Envelope
cannot be cast to org.geotools.geometry.jts.ReferencedEnvelope
at
org.geotools.gce.imagemosaic.Utils$BBOXFilterExtractor.visit(Utils.java:250)
at org.geotools.filter.spatial.BBOXImpl.accept(BBOXImpl.java:216)
at
org.geotools.filter.visitor.DefaultFilterVisitor.visit(DefaultFilterVisitor.java:119)
at org.geotools.filter.AndImpl.accept(AndImpl.java:65)
at
org.geotools.gce.imagemosaic.catalog.CachingDataStoreGranuleCatalog.getGranuleDescriptors(CachingDataStoreGranuleCatalog.java:152)
at
org.geotools.gce.imagemosaic.RasterManager.getGranuleDescriptors(RasterManager.java:1135)
at
org.geotools.gce.imagemosaic.RasterLayerResponse.prepareResponse(RasterLayerResponse.java:1336)
... 117 more
According to the GeoServer tutorial
http://docs.geoserver.org/stable/en/user/tutorials/cql/cql_tutorial.html the
BBOX syntax I am using is valid. I also have a separate vector layer
containing the footprints of the granules in the ImageMosaic and the same
CQL_FILTER works for that layer.
Can anybody tell me why I would be getting this error? Do spatial queries with
CQL_FILTER parameter not apply to an ImageMosaic raster layer?
--Steve
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