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On 8/25/05, yliu5@xxxxxxx <yliu5@xxxxxxx> wrote:
getCoverage (9.6M bytes)
http://data.laits.gmu.edu/cgi-bin/tsunami/wcs100?version=1.0.0&service=WCS&request=getCoverage&coverage=/data4/TSUNAMI/L71131056_05620041229_B10.hdf:Grid:L71131056_05620041229_B10:L71131056_05620041229_B10&crs=EPSG:32647&bbox=23400,534000,267000,747000&resx=300&resy=300&format=netCDF
Yang Liu,
The ncdump of this result looks like:
netcdf wcs100 {
dimensions:
xdim = 813 ;
ydim = 711 ;
variables:
double xdim(xdim) ;
xdim:standard_name = "projection_x_coordinate" ;
xdim:units = "m" ;
double ydim(ydim) ;
ydim:standard_name = "projection_y_coordinate" ;
ydim:units = "m" ;
int projection ;
projection:grid_mapping_name = "transverse_mercator" ;
projection:scale_factor_at_central_meridian = 0.9996 ;
projection:longitude_of_central_meridian = 99 ;
projection:latitude_of_projection_origin = 0 ;
projection:false_easting = 500000 ;
projection:false_northing = 0 ;
double lon(ydim, xdim) ;
lon:standard_name = "longitude" ;
lon:units = "degrees_east" ;
lon:long_name = "longitude" ;
double lat(ydim, xdim) ;
lat:standard_name = "latitude" ;
lat:units = "degrees_north" ;
lat:long_name = "latitude" ;
byte L71131056_05620041229_B10(ydim, xdim) ;
L71131056_05620041229_B10:long_name
"L71131056_05620041229_B10" ;
L71131056_05620041229_B10:coordinates = "lat lon" ;
L71131056_05620041229_B10:grid_mapping = "projection" ;
// global attributes:
:institution = "LAITS, GMU" ;
:Conventions = "CF-1.0" ;
...
Is the set of projection parameters standard? Currently the GDAL NetCDF
driver does not seem to support your coordinate system conventions.
In fact, I find it odd that you list projection parameters but you don't
give any bounds or other information about the image in that projection. I think we need a way of encoding the projected origin and offset vector information in the netcdf result. You obviously have it forgenerating the coverage description.
Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmerdam@xxxxxxxxx light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent
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