Dear list,
I am trying to upgrade our GeoTools 2.2.0 application to GeoTools 2.3.0
to benefit from the improved raster support. However, I am having some
difficulties creating a GridCoverage from a GIF image with a world file.
First, I have tried this:
BufferedImage image = ImageIO.read(new File(aImageFileName));
CoordinateReferenceSystem crs = DefaultGeographicCRS.WGS84;
Envelope env = new Envelope2D(crs, -180, -90, 360, 180);
GridCoverageFactory gcf = FactoryFinder.getGridCoverageFactory(null);
GridCoverage gridcoverage = gcf.create(aName, image, env);
This causes an illegalArgumentException: The number of image bands (4)
differs from the number of supplied 'SampleDimension' objects (1).
If I create an array containing four sample dimensions, I get another
error: The number of image bands (1) differs from the number of supplied
'SampleDimension' objects (4).
The code found in
http://sourceforge.net/mailarchive/forum.php?thread_id=31248725&forum_id
=12232 does work. However, a message "Could not load mediaLib
accelerator wrapper classes. Continuing in pure Java mode." is displayed
in the console. This message is caused by the fact that the jai dll's
(mlib_jai.dll and mlib_jai_mmx.dll) cannot be found. If I make sure
these dll's can be found, the JVM crashes:
# An unexpected error has been detected by HotSpot Virtual Machine:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x10120445, pid=3316,
tid=3044
# Problematic frame:
# C [mlib_jai.dll+0x120445]
Hopefully someone can point us in the right direction.
Kind regards,
Bas Vanmeulebrouk.
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