Okay let me try again ... gt-wms ====== org.geotools.data.wms.xml.Extent -this is a class it does not implement any interfaces - the isEmpty fix is applied here :-) - this is the end of the line no modules depend on wms so nothing can extent org.geotools.data.wms.xml.Extent - this class could implement an interface - its job is to hold on to the section of the WMS 1.3 capabilities document - this class get have a "toExtent()" method to convert the value to a useful implementation
org.opengis.metadata.extent.Extent - this is an interface it is in a different project org.geotools.metadata.iso.extent.ExtentImpl - implementation of above metadata Extent org.geotools.styling.Extent - the documentation / specificaiton is so poor I cannot tell what the value is supposed to be org.opengis.sld.Extent - the slightly better document geopai version org.geotools.styling.ExtentImpl - implementation of above styling Extent Now what I would like returned is something useful such as a BoundingBox, or ReferencedEnvelope ... so I would recommend org.geotools.data.wms.xml.Extent get a toBounds() method returning a ReferencedEnvelope Jody On 20/05/2010, at 11:47 PM, Heimo Laukkanen wrote: > On Thu, May 20, 2010 at 4:07 PM, Jody Garnett <jody.garn...@gmail.com> wrote: >> I am not sure I get it what are we trying to do with this change? > > Well at the moment, when you parse getCapabilities responses and have > layers with dimensions and dimension extents, for example: > > <wms:Layer> > <wms:Name>hydro.runoffmaxaverage</wms:Name> > <wms:Title>Average maximum runoff</wms:Title> > <wms:CRS>EPSG:2393</wms:CRS> > <wms:EX_GeographicBoundingBox> > <wms:westBoundLongitude>19.872</wms:westBoundLongitude> > <wms:eastBoundLongitude>33.030</wms:eastBoundLongitude> > <wms:southBoundLatitude>59.769</wms:southBoundLatitude> > <wms:northBoundLatitude>69.995</wms:northBoundLatitude> > </wms:EX_GeographicBoundingBox> > <wms:Dimension name="time" units="ISO8601"> > 2025-01-01/2055-01-01/2085-01-01 > </wms:Dimension> > <wms:Dimension name="emissionscenario" units="WHAT"> > SRES_A1FI,SRES_A2,SRES_B1,SRES_B2 > </wms:Dimension> > </wms:Layer> > > There isn't a way to get the data ( extent ) from the dimension. > > That happens because when we parse getCapabilitiesResponse and parser > calls DimensionType's getValue, it passes handling extents to > Extent.java AND includes extent to the dimension only if extent is not > empty. > > As current implementation of isEmpty is not compatible with the > definition of empty, Dimension's extents are not put into the object > graph -- even though they are in the xml and are otherwise parsed > correctly. > >> Also which extent class are you wanting this change done to? >> The reason I ask is no modules really depend on the wms module so they are >> not going to take kindly to extending org.geotools.data.wms.xml.Extent. > > org.geotools.data.wms.xml.Extent is the class where the problem is. We > just extended geotools' Extent class in our project to fix this bug > untill it is fixed in the upstream. > > -huima
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