Hello,
I am trying to reproject a geotif from 4326 to 3031 (polar stereographic).
The resulting data contains gaps at the pole and dateline. I cannot figure
out why this is happening. Does anyone know how I can get rid of these
gaps? I thought maybe the original image wasn't complete or correctly
geolocated, but I'm not sure how to determine this.
Also, is this the best format for reprojecting data? I had planned on
splitting the image up and loading them as a layergroup, but if there is a
data format that handles reprojections better, please let me know.
I would appreciate any help that can be given.
Below is the gdalinfo on the image.
Driver: GTiff/GeoTIFF
Files: world.tif
Size is 5400, 2700
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 = (0.066666666666667,-0.066666666666667)
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=5400x1 Type=Byte, ColorInterp=Red
Band 2 Block=5400x1 Type=Byte, ColorInterp=Green
Band 3 Block=5400x1 Type=Byte, ColorInterp=Blue
I've been using the following request for reprojection:
http://yepreally.com:8999/geoserver/wms?service=WMS&version=1.1.0&request=GetMap&layers=bm_b:world&styles=&bbox=-13332536.110521,-8332835.0690757,13332536.110521,4999701.0414455&width=512&height=512&srs=EPSG:3031&format=application/openlayers
http://yepreally.com:8999/geoserver/wms?service=WMS&version=1.1.0&request=GetMap&layers=bm_b:world&styles=&bbox=-13332536.110521,-8332835.0690757,13332536.110521,4999701.0414455&width=512&height=512&srs=EPSG:3031&format=application/openlayers
If any other information would be helpful in determining what is wrong,
please let me know.
Thanks again,
Jed
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