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  • #701

Closed
Open
Opened Apr 16, 2013 by Sébastien Dinot@sdinotOwner

OSSIM doesn't support GEOS projection (but GDAL does)

Mantis Issue 701, reported by gpasero, assigned to ghost, created: 2013-04-16

The GEOS projection (a.k.a. geostationary projection) is not supported by OSSIM. There is no epsg code attached to this projection, but it is defined by a Proj4 string : "+proj=geos +h=35785831.0" . The OGRSpatialReference from GDAL is able to translate this string into a WKT. But the otb::GenericRSTransform is unable to instanciate a transform with this WKT.

When using projections without epsg, OSSIM has its own table to find the correct type (see Utilities/otbossimplugins/gdal/ossimOgcWktTranslator.cpp line 665).

The corresponding WKT is :

PROJCS["Geostationary_Satellite",
    GEOGCS["GCS_WGS_1984",
        DATUM["D_unknown",
            SPHEROID["WGS84",6378137,298.257223563]],
        PRIMEM["Greenwich",0],
        UNIT["Degree",0.017453292519943295]],
    PROJECTION["Geostationary_Satellite"],
    PARAMETER["central_meridian",0],
    PARAMETER["satellite_height",35785831],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["Meter",1]]
Edited Feb 01, 2018 by Sébastien Dinot
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Reference: orfeotoolbox/otb#701