| Hi Bob,
We are currently moving a branch of uDig to use Geotools trunk which has a wicked implementation of Geotiff. It can render GB+ sized Geotiffs very efficiently as long as the overviews are generated. I also think there is some JPEG2000 support somewhere on trunk. However it will be a little while before it is completely stable. But if you have the patience, helping us test it would really be great. You've been a great help already. I'll let you know when a Milestone from the branch comes out.
Jesse On Apr 22, 2007, at 10:04 AM, Bruce, Bob (CON) wrote: Hi Jesse: thanks for that pointer, it fixed my problem and I was able to display GeoTIFF files with the Mantario Trail SHAPE file superimposed upon them. I currently have 6 6Mb GeoTIFF files shown. I tried translating one of our MrSID images into GeoTIFF to display much more of the trail, but the GeoTIFF ended up being 600Mb and uDig couldn't seem to handle that. It would be a lot better if uDig supported MrSID files which we release a lot of our imagery on the MLI here in Manitoba in. Or else if you can't support MrSID because of proprietary issues conflicting with the LGPL license then at least if you supported JPEG2000 would be an option. I couldn't translate this file into ECW because of a GDAL 500k ECW SDK issue and anyway uDig doesn't support ECW. Bob
This is a frusterating problem that I have not been able to solve. It seems that sometimes it works and sometimes it doesn't. I found a hack that works though. in the short cut add:
-vmargs -Dosgi.parentClassloader=ext
that worked for me. I will update the install script.
Jesse
On Apr 19, 2007, at 11:11 PM, Bruce, Bob (CON) wrote: I am using uDig 1.1-RC10a on a WIN XP Pro system
I am trying to include 6 GeoTIFF files in my uDig project and am getting errors when I do this. The error message under the GeoTIFF category is:
File can not be read. Could be a JAI configuration problem or a corrupted file. Error recieved was: java.lang.IllegalArgumentException: ImageRead: No OperationDescriptor is registered in the current operation registry under this name.
So I listed the information about one of the images using GDALINFO and got this output:
C:\OpenSourceTestData\MantarioTrail\Zone14Shapes>gdalinfo 7505550neg.tif
Driver: GTiff/GeoTIFF
Size is 2500, 2500
Coordinate System is:
PROJCS["unnamed",
GEOGCS["NAD83",
DATUM["North_American_Datum_1983",
SPHEROID["GRS 1980",6378137,298.2572221010002,
AUTHORITY["EPSG","7019"]],
AUTHORITY["EPSG","6269"]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433],
AUTHORITY["EPSG","4269"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",-99],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",0],
UNIT["unknown",1],
AUTHORITY["EPSG","26914"]]
Origin = (755000.000000000000000,5560000.000000000000000)
Pixel Size = (2.000000000000000,-2.000000000000000)
Metadata:
AREA_OR_POINT=Area
Corner Coordinates:
Upper Left ( 755000.000, 5560000.000) ( 95d25'52.66"W, 50d 8'14.41"N)
Lower Left ( 755000.000, 5555000.000) ( 95d26'4.68"W, 50d 5'32.84"N)
Upper Right ( 760000.000, 5560000.000) ( 95d21'41.29"W, 50d 8'6.60"N)
Lower Right ( 760000.000, 5555000.000) ( 95d21'53.54"W, 50d 5'25.04"N)
Center ( 757500.000, 5557500.000) ( 95d23'53.04"W, 50d 6'49.74"N)
Band 1 Block=2500x3 Type=Byte, ColorInterp=Gray
Can someone tell me what I'm doing wrong?
thanks,
Bob Bruce, Winnipeg, Manitoba _______________________________________________ User-friendly Desktop Internet GIS (uDig)
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