Even better, if I could serialize a referenced envelope, which should be serializable already, that would be a quick workaround. So in principle I should be able to create a TransportImage as you mention, with the two elements (Rendered Image, ReferencedEnvelope), and then to decode it I will deserialize, cast to TransportImage and extract everything, right?
Will give it a try, thanks! Still, a more generic solution would be preferable. Martin Christian Müller wrote: > Another idea for a quick solution is to serialize a world file as well. > A world file has only 6 lines, see here > http://en.wikipedia.org/wiki/World_file > class TransportImage implements Serializable { > SerializabelRenderedImage theImage; > Double[] wordlFileLines; > } > That is all you need to construct a georeferenced image. > Simone, what is the quickest way to create a Coverage2D having the > lines of a world file ? > > > > Martin Tomko writes: >> Dear Simone, >> I will try to provide a case for JIRA, somewhere around Monday, no >> time to do it before. >> In the mean time - it is quite urgent for me to find a solution to >> pass the GridCoverrage2D around - could you please elaborate how you >> would serialize the coverage and consequently apply the styling? I >> only applied the styling (I have no need for it), because I was >> getting the error resulting from the lack of color model, or rather >> the inabiity to serialize it. >> The approach mentioned by Christian and later Martin: >> new SerializableRenderedImage(outcov.getRenderedImage()) >> does seem to only serialize the rendered image. How would one >> serialize the GridCoverage directly? When I tried it, I got the >> errors resulting from the color model, as noted earlier. >> Is there any way to serialize a GeoTiff - that would be a suitable >> alternative. >> HOw are these things done in a WMS/WCS request - there must be some >> serialization happening, and it would probably provide a suitable >> alternative for me. >> Thanks for any help, >> Martin >> >> Simone Giannecchini wrote: >>> Martin, >>> you should serialize the coverage prior to the raster symbolizer in >>> case you want to retain the original information of the data. >>> Anyway, if you can provide an isolated test case for this >>> serialization problem along with test data and create a jira for it >>> that would be great, since it sounds like an improvement is needed >>> inside the color map node of the raster symbolizer. >>> Ciao, >>> Simone. >>> ------------------------------------------------------- >>> Ing. Simone Giannecchini >>> GeoSolutions S.A.S. >>> Owner - Software Engineer >>> Via Carignoni 51 >>> 55041 Camaiore (LU) >>> Italy >>> phone: +39 0584983027 >>> fax: +39 0584983027 >>> mob: +39 333 8128928 >>> http://www.geo-solutions.it >>> http://simboss.blogspot.com/ >>> http://www.linkedin.com/in/simonegiannecchini >>> ------------------------------------------------------- >>> >>> >>> On Thu, Apr 23, 2009 at 5:42 PM, Martin Tomko >>> <[email protected]> wrote: >>> >>>> Hi Martin, >>>> that is exactly what I was trying to do before: >>>> I get the following error: >>>> Exception in thread "main" java.lang.RuntimeException: >>>> org.geotools.renderer.lite.gridcoverage2d.LinearColorMapNon-serializable >>>> >>>> parameter in this operation`s ParameterBlock. >>>> at >>>> javax.media.jai.OperationNodeSupport.writeObject(OperationNodeSupport.java:746) >>>> >>>> >>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>> at >>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >>>> >>>> >>>> at >>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >>>> >>>> >>>> at java.lang.reflect.Method.invoke(Method.java:597) >>>> at >>>> java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) >>>> >>>> >>>> at >>>> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) >>>> at >>>> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) >>>> >>>> >>>> at >>>> java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:416) >>>> >>>> at javax.media.jai.RenderedOp.writeObject(RenderedOp.java:3004) >>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>> at >>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >>>> >>>> >>>> at >>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >>>> >>>> >>>> at java.lang.reflect.Method.invoke(Method.java:597) >>>> at >>>> java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) >>>> >>>> >>>> at >>>> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) >>>> at >>>> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) >>>> at java.util.Hashtable.writeObject(Hashtable.java:824) >>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>> at >>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >>>> >>>> >>>> at >>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >>>> >>>> >>>> at java.lang.reflect.Method.invoke(Method.java:597) >>>> at >>>> java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) >>>> >>>> >>>> at >>>> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) >>>> at >>>> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) >>>> at >>>> javax.media.jai.PropertySourceImpl.writeMap(PropertySourceImpl.java:347) >>>> >>>> at >>>> javax.media.jai.PropertySourceImpl.writeObject(PropertySourceImpl.java:361) >>>> >>>> >>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>> at >>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >>>> >>>> >>>> at >>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >>>> >>>> >>>> at java.lang.reflect.Method.invoke(Method.java:597) >>>> at >>>> java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) >>>> >>>> at >>>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) >>>> >>>> >>>> at >>>> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) >>>> at >>>> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) >>>> at >>>> ch.uzh.geo.tomko.viewshedservice.ViewshedService.toBytesGC(ViewshedService.java:519) >>>> >>>> >>>> It seems to work if I extract the renderedimage: >>>> new SerializableRenderedImage(covoverage.getRenderedImage()) >>>> But then, I am afraid, I am losing the coverage2D capabilities. >>>> I am using the 2.5-snapshot. Seems like the serialization does nto >>>> work, >>>> or my rendering is incorrect? (.LinearColorMapNon-serializable >>>> parameter >>>> seems to imply that..) >>>> I have a simple thing like this: >>>> <FeatureTypeStyle> >>>> <FeatureTypeName>Feature</FeatureTypeName> >>>> <Rule> >>>> <RasterSymbolizer> >>>> <ColorMap type="ramp" extended="true"> >>>> <ColorMapEntry color="#ffffff" quantity="-1.0" opacity="1.0"/> >>>> <ColorMapEntry color="#000000" quantity="0.0" opacity="1.0"/> >>>> <ColorMapEntry color="#ffff00" quantity="1.0" opacity="1.0"/> >>>> <ColorMapEntry color="#00ff00" quantity="2.0" opacity="1.0"/> >>>> <ColorMapEntry color="#00ffff" quantity="3.0" opacity="1.0"/> >>>> <ColorMapEntry color="#0000ff" quantity="4.0" opacity="1.0"/> >>>> <ColorMapEntry color="#ff00ff" quantity="5.0" opacity="1.0"/> >>>> <ColorMapEntry color="#ff0000" quantity="6.0" opacity="1.0"/> >>>> </ColorMap> >>>> <Opacity>1.0</Opacity> >>>> <ChannelSelection> >>>> <GrayChannel> >>>> <SourceChannelName>1</SourceChannelName> >>>> </GrayChannel> >>>> </ChannelSelection> >>>> </RasterSymbolizer> >>>> thanks >>>> Martin >>>> Martin Desruisseaux wrote: >>>> >>>>> Martin Tomko a écrit : >>>>> >>>>>> Now, I noticed that this approach is *similar*to some test cases in >>>>>> http://svn.geotools.org/trunk/modules/library/coverage/src/test/java/org/geotools/coverage/grid/GridCoverageTestBase.java >>>>>> >>>>>> >>>>>> but in these test cases it does not seem to be necessary to create >>>>>> the new SerializableRenderedImage. Can anyone please comment on >>>>>> this? >>>>>> >>>>> This test case is serializing GridCoverage2D, not RenderedImage. Like >>>>> mentioned in my previous email, GridCoverage2D is already made >>>>> serializable using the technic mentioned by Christian. >>>>> >>>>> >>>>>> What I need is the output of a Coverage (or Geotiff, anything that >>>>>> will be contained aas one object and will contain georeferencing >>>>>> information - at least the ReferencedEnvelope). >>>>>> I need to pass the coverage to a remote service that will decode it. >>>>>> The coverage has a ReferencedEnvelope, and that is what I need to be >>>>>> passed with the raw data. >>>>>> I have control over the decoding of the byte[] to an extent, so I >>>>>> can >>>>>> have a less standard way of decoding it. >>>>>> >>>>> If you have a GridCoverage2D instance, you can do: >>>>> // Writting >>>>> ByteArrayOutputStream buffer = new ByteArrayOutputStream(); >>>>> ObjectOutputStream out = new ObjectOutputStream(buffer); >>>>> out.writeObject(theCoverage); >>>>> out.close(); >>>>> byte[] asArray = buffer.getArray(); >>>>> >>>>> // Reading >>>>> ObjectInputStream in = new ObjectInputStream(new >>>>> ByteArrayInputStream(asArray)); >>>>> GridCoverage2D theCoverage = (GridCoverage2D) in.readObject(); >>>>> in.close(); >>>>> Martin >>>>> >>>>> >>>> -- >>>> Martin Tomko >>>> Postdoctoral Research Assistant >>>> Geographic Information Systems Division >>>> Department of Geography >>>> University of Zurich - Irchel >>>> Winterthurerstr. 190 >>>> CH-8057 Zurich, Switzerland >>>> email: [email protected] >>>> site: http://www.geo.uzh.ch/~mtomko >>>> mob: +41-788 629 558 >>>> tel: +41-44-6355256 >>>> fax: +41-44-6356848 >>>> >>>> ------------------------------------------------------------------------------ >>>> >>>> >>>> Stay on top of everything new and different, both inside and >>>> around Java (TM) technology - register by April 22, and save >>>> $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. >>>> 300 plus technical and hands-on sessions. Register today. >>>> Use priority code J9JMT32. http://p.sf.net/sfu/p >>>> _______________________________________________ >>>> Geotools-gt2-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>>> >>> >>> >>> >> >> >> -- >> Martin Tomko >> Postdoctoral Research Assistant Geographic Information Systems >> Division >> Department of Geography >> University of Zurich - Irchel >> Winterthurerstr. 190 >> CH-8057 Zurich, Switzerland >> email: [email protected] >> site: http://www.geo.uzh.ch/~mtomko >> mob: +41-788 629 558 >> tel: +41-44-6355256 >> fax: +41-44-6356848 >> >> ------------------------------------------------------------------------------ >> >> >> Crystal Reports - New Free Runtime and 30 Day Trial >> Check out the new simplified licensign option that enables unlimited >> royalty-free distribution of the report engine for externally >> facing server and web deployment. >> http://p.sf.net/sfu/businessobjects >> _______________________________________________ >> Geotools-gt2-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > > > > -- Martin Tomko Postdoctoral Research Assistant Geographic Information Systems Division Department of Geography University of Zurich - Irchel Winterthurerstr. 190 CH-8057 Zurich, Switzerland email: [email protected] site: http://www.geo.uzh.ch/~mtomko mob: +41-788 629 558 tel: +41-44-6355256 fax: +41-44-6356848 ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
