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Thanks Jesse, I'll be happy to help test this when you're
ready.
Bob
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
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User-friendly Desktop Internet GIS (uDig)
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User-friendly Desktop Internet GIS (uDig)
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