Take a look at
http://72.5.124.55/products/java-media/jai/forDevelopers/jai-apidocs/javax/m
edia/jai/remote/SerializableRenderedImage.html
from the jai (Java advanced imaging )
Martin Tomko writes:
> Dear all,
> I need to pass around the results of my coverage processing (a
> Coverage2D, or a geotiff, both are acceptable) through an XML (as a
> xsd:base64Binary). The coverages will be VERY small.
>
> In order to do that, I need to serialize the object (the coverage). I
> have found some code doing something like that:
> public static byte[] toBytes(Object object){
> java.io.ByteArrayOutputStream baos = new
> java.io.ByteArrayOutputStream();
> try{
> java.io.ObjectOutputStream oos = new
> java.io.ObjectOutputStream(baos);
> oos.writeObject(object);
> }catch(java.io.IOException ioe){
> }
> return baos.toByteArray();
> }
>
> But it does not seem to work with coverages:
> Exception in thread "main" java.lang.IllegalArgumentException: No
> Serializers available for the ColorModel.
> at
> javax.media.jai.remote.SerializableRenderedImage.<init>(SerializableRenderedImage.java:507)
> at
> javax.media.jai.remote.SerializableRenderedImage.<init>(SerializableRenderedImage.java:390)
> at
> org.geotools.coverage.grid.GridCoverage2D.writeObject(GridCoverage2D.java:1034)
> 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.service.VService.toBytes(VService.java:492)
>
> It seems that specific serializers are invoked for the rendered image.
> Can anyone please point me to a solution? Note that my coverage
> currently does not have a color model assigned (it has only 6 values -
> In general I need it for DEMs etc...). I tried to set the coverage
> ViewType to Geophysics or Rendered, but that did not help.
> I need the actual values of the cells to be preserved in the output.
>
> Thank for any help,
> Martin
>
>
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300 plus technical and hands-on sessions. Register today.
Use priority code J9JMT32. http://p.sf.net/sfu/p
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