[mapserver-users] HDF Data projection in MapServer

[Reddem]

Hi Everybody,

I am trying to display HDF files using MapServer, and upto some extent
i have done it. Still i am facing problem with the projection of map.

and MapFile Layer looks like this:

          LAYER
               NAME wise_io
               #DATA 'o.tif'
               DATA
'HDF5:"C:/ms4w/apps/HDFData/data/output.h5"://Mapped_-_Composited_mapped'
               DUMP TRUE
               TYPE RASTER
               STATUS ON
               CLASSITEM "[pixel]"
               CLASS
                       EXPRESSION ([pixel] > 0)
                       STYLE
                               COLOR 0 0 255
                       END
               END
               PROJECTION
                                     {{{{       ................    }}}}
               END
       END

and GDAL INFO for used HDF data is :

.......................
Driver: HDF5Image/HDF5 Dataset
Files: none associated
Size is 3630, 2530
Coordinate System is:
GEOGCS["WGS 84",
   DATUM["WGS_1984",
       SPHEROID["WGS 84",6378137,298.257223563,
           AUTHORITY["EPSG","7030"]],
       TOWGS84[0,0,0,0,0,0,0],
       AUTHORITY["EPSG","6326"]],
   PRIMEM["Greenwich",0,
       AUTHORITY["EPSG","8901"]],
   UNIT["degree",0.0174532925199433,
       AUTHORITY["EPSG","9108"]],
   AUTHORITY["EPSG","4326"]]
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0, 2530.0)
Upper Right ( 3630.0,    0.0)
Lower Right ( 3630.0, 2530.0)
Center      ( 1815.0, 1265.0)
Band 1 Block=3630x1 Type=Float32, ColorInterp=Undefined
 Metadata:
   Mapped - Composited mapped:Projection Category=IDL
   Mapped - Composited mapped:Projection Name=Cylindrical
   Mapped - Composited mapped:Source=A2010021053000_CHL.L2_LAC
   Mapped - Composited mapped:units=mg m^-3
   Mapped - Composited mapped:Slope=1.000000
   Mapped - Composited mapped:Intercept=0.000000
   Mapped - Composited mapped:Scaling=linear
   Mapped - Composited mapped:Limit=4 62 27 95
   Mapped - Composited mapped:Projection ID=8
   Mapped - Composited mapped:Latitude Center=0
   Mapped - Composited mapped:Longitude Center=78.5
   Mapped - Composited mapped:Isotropic=1
   Mapped - Composited mapped:Rotation=0
   Mapped - Composited mapped:Position=0 0 1 1
   Mapped - Composited mapped:Scale=0
   Mapped - Composited mapped:Central_Azimuth=0
   Mapped - Composited mapped:HDF4_OBJECT_TYPE=SDS
   Mapped - Composited mapped:HDF4_OBJECT_NAME=Mapped - Composited mapped
   Mapped - Composited mapped:HDF4_REF_NUM=2d
..............................................................................

I have created the GeoTiff using gdal_translate and projected it and
it works well.
>> gdal_translate -ot Byte -of GTiff -b 1 -a_ullr 62 4 95 27
>> HDF5:"output.h5"://Mapped_-_Composited_mapped o.tif.

I am facing problem with projection of HDF data set which is 1 KM
gridded dataset. and as without defining Projection Derivative it is
showing somewhere else in the map.  can anyone help me in this regard
to define Projection section of HDF data layer.

with regards
Venkat
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