Re: [udig-devel] Any recent changes to WorldImageReader?

[Jesse Eichar <jeichar@xxxxxxxxxxxxxxx>]

I've done a bunch of research into this and talked to the author of  
the plugin.  He tells me that it just randomly fails, something to do  
with using the FileChannel.  I don't really understand it.  Here's  
the pertinent lines.

        //preparing the parameteres to read the images using a file  
channel
        ParameterBlockJAI readParams = new ParameterBlockJAI 
("ImageRead",
                "rendered");


If someone has ideas that'd be great.

Jesse


On 25-Mar-06, at 3:58 AM, Adrian Custer wrote:

> Hey all,
>
> code that was working last week now doesn't. Did someone change the  
> code
> in WorldImageReader recently that would explain this?
>
> My code is attached as: GridPtLayerOp.java
>
> The three generated files are attached as gridfile.*
>
> When the gridfiles are added to a running uDig (e.g. by drag-and- 
> drop),
> I get an error message in the log that begins:
>
>
> !ENTRY net.refractions.udig.catalog 2 0 2006-03-25 12:48:10.736
> !MESSAGE !WorldImageGeoResource.error.layer.bounds!
> !STACK 0
> java.lang.IllegalArgumentException: The input argument(s) may not be
> null.
> 	at javax.media.jai.ParameterBlockJAI.<init>(ParameterBlockJAI.java: 
> 208)
> 	at javax.media.jai.ParameterBlockJAI.<init>(ParameterBlockJAI.java: 
> 250)
> 	at
> org.geotools.gce.image.WorldImageReader.readSourceImage 
> (WorldImageReader.java:464)
> 	at
> org.geotools.gce.image.WorldImageReader.read(WorldImageReader.java: 
> 301)
> 	at
> net.refractions.udig.catalog.rasterings.AbstractRasterGeoResource.find 
> Resource(Unknown Source)
> 	at
> net.refractions.udig.catalog.internal.worldimage.WorldImageGeoResource 
> Impl$IGeoResourceWorldImageInfo.getBounds(Unknown Source)
> 	at
> net.refractions.udig.catalog.internal.worldimage.WorldImageGeoResource 
> Impl$IGeoResourceWorldImageInfo.<init>(Unknown Source)
> 	at
> net.refractions.udig.catalog.internal.worldimage.WorldImageGeoResource 
> Impl.getInfo(Unknown Source)
> 	at net.refractions.udig.catalog.ui.workflow.ConnectionState.run 
> (Unknown
> Source)
>
> Any ideas?
>
> thanks,
> adrian
>
>
> <GridPtLayerOp.java>
> <gridfile.pgw>
> <gridfile.png>
> <gridfile.prj>
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