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Re: [udig-devel] InMemoryCoverageLoader issues loading jpeg
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You may want to turn off "cache" (in right click on the layer it is
one of the style options).
We have it on by default for jpeg right now (causing the whole thing
to be loaded). Turning it off will not force it into memory; but it
will still make use of the JAI tile cache.
I am able to load larger JPEGS that way.
Should probably make that a preference; not jpeg is the only image
that defaults to cache = true (for performance reasons).
Jody
On Tue, Nov 9, 2010 at 11:43 AM, Rueben Schulz
<rschulz@xxxxxxxxxxxxxxxxxx> wrote:
> Hello,
>
> Last week I was having problems loading some larger jpg images (7216 by 5412
> pixels). The
> net.refractions.udig.catalog.internal.worldimage.InMemoryCoverageLoader
> would pop up a dialog asking if I wanted to re-start uDig with more (1024MB)
> memory, but more memory did not help. The stack trace is below.
>
> The jpeg image should only be about 140MB uncompressed. On further
> examination, it looks like my problems are caused by the imageIO library
> (javax.imageio.IIOException: Decoder cannot decode input). For some reason
> everything seems to work fine this morning...
>
> So the root of my problem is not with uDig, but I have two suggestions for
> improving the InMemoryCoverageLoader.
>
> 1) don't call updateMemoryLevel() (telling the user to restart uDig with
> more memory) from the load() method when an exception (other than an
> OutOfMemoryError) is thrown. In my case, no amount of memory will help.
>
> I only make this as a suggestion, since there may be many other cases I
> don't know about where increasing the memory actually helps. But in my case
> I initially wasted time trying to figure out how my images were taking up so
> much memory, when this was not the problem.
>
> 2) the size() method is calculating image size as KB, but reporting them as
> MB.
>
> Rueben
>
>
> org.geotools.data.DataSourceException: IOException
> at
> org.geotools.gce.image.WorldImageReader.getHRInfo(WorldImageReader.java:356)
> at
> org.geotools.gce.image.WorldImageReader.<init>(WorldImageReader.java:248)
> at
> org.geotools.gce.image.WorldImageFormat.getReader(WorldImageFormat.java:346)
> at
> org.geotools.gce.image.WorldImageFormat.getReader(WorldImageFormat.java:162)
> at
> org.geotools.gce.image.WorldImageFormat.getReader(WorldImageFormat.java:58)
> at
> net.refractions.udig.catalog.rasterings.AbstractRasterService.getReader(Abst
> ractRasterService.java:126)
> at
> net.refractions.udig.catalog.rasterings.AbstractRasterGeoResourceInfo.getBou
> nds(AbstractRasterGeoResourceInfo.java:50)
> at
> net.refractions.udig.catalog.internal.worldimage.WorldImageInfo.getBounds(Wo
> rldImageInfo.java:30)
> at
> net.refractions.udig.project.internal.impl.GeoResourceInfoInterceptor$Wrappe
> r.getBounds(GeoResourceInfoInterceptor.java:68)
> at
> net.refractions.udig.project.internal.impl.LayerImpl.obtainBoundsFromResourc
> es(LayerImpl.java:2014)
> at
> net.refractions.udig.project.internal.impl.LayerImpl.getBounds(LayerImpl.jav
> a:1985)
> at
> ca.forestecosystem.udig.flyeye.ObliqueMapView.addPhotoToMap(ObliqueMapView.j
> ava:728)
> at
> ca.forestecosystem.udig.flyeye.ObliqueMapView.setObliquePhotoAOI(ObliqueMapV
> iew.java:579)
> at
> ca.forestecosystem.udig.flyeye.GetPhotosTool$1.run(GetPhotosTool.java:133)
> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
> at
> org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
> at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> at
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
> at
> net.refractions.udig.internal.ui.UDIGApplication.start(UDIGApplication.java:
> 136)
> at
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:
> 196)
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(
> EclipseAppLauncher.java:110)
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAp
> pLauncher.java:79)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
> Caused by: javax.imageio.IIOException: IOException
> at
> com.sun.media.imageioimpl.plugins.clib.CLibImageReader.locateImage(CLibImage
> Reader.java:412)
> at
> com.sun.media.imageioimpl.plugins.clib.CLibImageReader.getNumImages(CLibImag
> eReader.java:533)
> at
> org.geotools.gce.image.WorldImageReader.getHRInfo(WorldImageReader.java:295)
> ... 38 more
> Caused by: javax.imageio.IIOException: Decoder cannot decode input.
> at
> com.sun.media.imageioimpl.plugins.jpeg.CLibJPEGImageReader.decode(CLibJPEGIm
> ageReader.java:134)
> at
> com.sun.media.imageioimpl.plugins.clib.CLibImageReader.skipImage(CLibImageRe
> ader.java:461)
> at
> com.sun.media.imageioimpl.plugins.clib.CLibImageReader.locateImage(CLibImage
> Reader.java:409)
> ... 40 more
>
>
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
> http://lists.refractions.net/mailman/listinfo/udig-devel
>
