I am working on a project in which I need the ability to reproject data from
EPSG:4326 to polar stereographic. From what I've read, Geoserver can handle
WMS reprojection on-the-fly.
This is what I've done so far:
1. Geolocated a blue marble image using gdal_translate
gdal_translate -a_srs "EPSG:4326" -a_ullr -180 90 180 -90 in.jpg
out.tif
2. Loaded the image into geoserver.
3. Set the Declared SRS to EPSG:3031.
4. Set to "Reproject native to declared".
However, when viewing the data in the Layer Preview, it just displays a
black image.
Can anyone help explain what I'm doing wrong. I'm curious if my geotif was
not correctly geolocated, or if I'm simply going about the reprojection
process all wrong.
I would really appreciate any help that can be given. Below is the gdalinfo
output on the geolocated image.
Driver: GTiff/GeoTIFF
Files: out.tif
Size is 600, 300
Coordinate System is:
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.2572235629972,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433],
AUTHORITY["EPSG","4326"]]
Origin = (-180.000000000000000,90.000000000000000)
Pixel Size = (0.600000000000000,-0.600000000000000)
Metadata:
AREA_OR_POINT=Area
Image Structure Metadata:
INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left (-180.0000000, 90.0000000) (180d 0'0.00"W, 90d 0'0.00"N)
Lower Left (-180.0000000, -90.0000000) (180d 0'0.00"W, 90d 0'0.00"S)
Upper Right ( 180.0000000, 90.0000000) (180d 0'0.00"E, 90d 0'0.00"N)
Lower Right ( 180.0000000, -90.0000000) (180d 0'0.00"E, 90d 0'0.00"S)
Center ( -0.0000000, 0.0000000) ( 0d 0'0.00"W, 0d 0'0.00"N)
Band 1 Block=600x4 Type=Byte, ColorInterp=Red
Band 2 Block=600x4 Type=Byte, ColorInterp=Green
Band 3 Block=600x4 Type=Byte, ColorInterp=Blue
Thanks,
Jed
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