[gdal-dev] gdal get geolocation array in HDF5 dataset

[Ivan Lucena]

Hi Laura,

In that particular product the geolocation is not a metadata item but a field (two images with latitude values in one image and longitude values in the other).

"The swath structure consists of Data Fields and
Geolocation Fields, but we start with StructMetadata.0, since this holds information on the
size of the Data Fields and Geolocation Fields, that is being read in before the Data Fields and
Geolocation Fields are read in." [http://www.temis.nl/airpollution/no2.html] Product Specification Document(pdf).

GDALWARP is able to use those two geolocation field to transform the Data Fieds images into an output image in the SRS of your choice.

Regards,

Ivan

> Date: Wed, 30 Oct 2013 01:38:50 -0700
> From: lauramail at iol.it
> To: gdal-dev at lists.osgeo.org
> Subject: [gdal-dev] gdal get geolocation array in HDF5 dataset
> 
> Hi all,
> I would like to know I can I read with gdal the geolocation array stored
> inside an O3MSAF HDF5 data.
> With GDALGetMetadata( dataset, "" ); I get the list of metadata (es. Fill
> Value, Title, Unit but not the array with the latitude and longitude
> values), with GDALGetMetadata( dataset, "SUBDATASETS" ); just the list of 
> SUBDATASETS: all the DATA variable, GEOLOCATION are excluded.
> Suggestions?
> Thanks,
> 
> Laura
> 
> 
> 
> 
> --
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