[gdal-dev] ask for help about the reading of the hdf4 file of the modis

[Chaitanya kumar CH]

Kevin,

Try the GDALDataset::GetGeoTransform() and the
GDALDataset::GetProjectionRef() functions on the subdataset.
Here is some sample code:
http://trac.osgeo.org/gdal/browser/trunk/gdal/apps/gdal_translate.cpp#L435

2010/3/2 Kevin Lin <bjlin.sw at gmail.com>

>
>  hi,all
>
> I have a problem when I use the gdal to open the modis Hdf4 file.
> when I get the latitude and the Longitude, I do not know how to read it.
>
> is it use GetMetadata( "SUBDATASETS" )?
> but the SUBDATASETS, don't include the geolocation information.
>
> in the hdf4 file, ther is a geolocation fields, data fields and swatch
> attributes.
> when I read the data in the data fields, I use GetMetadata( "SUBDATASETS"
> ).
> but I do not know how to read the data in the geolocation fields.
>
> can anyone help me?
>
> best regards.
>
>
>
>
>
> Kevin Lin
> Bjlin.sw at gmail.com
> 2010-03-02
>
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> gdal-dev at lists.osgeo.org
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>



-- 
Best regards,
Chaitanya kumar CH.
/tʃaɪθənjə/ /kʊmɑr/
+91-9848167848
17.241582N 80.142635E
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