[gdal-dev] gdal_translate converted kml doesn't cover the whole earth

J Pan jianfu.pan at nasa.gov
Thu Jul 23 05:03:59 PDT 2015


I have a geotiff file with lat/lon ranges set to 85S to 85N and -180W to 
180E.  I was able to read out the lat/lon boundaries in the tif file and 
they are 83.632S to 83.632N and 179.813W to 179.813E. The lat/lon values 
seem to be the centers of grid boxes.  I used the gdal_translate to 
convert to kml then display it in GoogleEarth.  My problem is there is a 
gap towards the end of the data near the dateline.  In other words, the 
map starts at 180W and stops at about 179.01E, not 180E.  Anyone had the 
same situation?

Here is the output from my listgeo on the original tif file:
    Version: 1
    Key_Revision: 1.0
       ModelTiepointTag (2,3):
          0                 0                 0
          -17367530.4451649 7314540.64739566  0
       ModelPixelScaleTag (1,3):
          36032.2208405911  36032.2199379096  0
       GTModelTypeGeoKey (Short,1): ModelTypeProjected
       GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
       GTCitationGeoKey (Ascii,31): "Cylindrical Equal Area (WGS84)"
       GeographicTypeGeoKey (Short,1): GCS_WGS_84
       GeogGeodeticDatumGeoKey (Short,1): DatumE_WGS84
       GeogLinearUnitsGeoKey (Short,1): Linear_Meter
       GeogAngularUnitsGeoKey (Short,1): Angular_Degree
       GeogEllipsoidGeoKey (Short,1): Ellipse_WGS_84
       GeogSemiMajorAxisGeoKey (Double,1): 6378137
       GeogSemiMinorAxisGeoKey (Double,1): 6356752.31424
       ProjectedCSTypeGeoKey (Short,1): User-Defined
       ProjectionGeoKey (Short,1): User-Defined
       ProjCoordTransGeoKey (Short,1): CT_CylindricalEqualArea
       ProjLinearUnitsGeoKey (Short,1): Linear_Meter
       ProjLinearUnitSizeGeoKey (Double,1): 1
       ProjStdParallel1GeoKey (Double,1): 30

Projection Method: CT_CylindricalEqualArea
    ProjStdParallel1GeoKey: 30.000000 ( 30d 0' 0.00"N)
    ProjNatOriginLongGeoKey: 0.000000 (  0d 0' 0.00"E)
    ProjFalseEastingGeoKey: 0.000000 m
    ProjFalseNorthingGeoKey: 0.000000 m
GCS: 4326/WGS 84
Datum: 6030/(unknown)
Ellipsoid: 7030/WGS 84 (6378137.00,6356752.31)
Prime Meridian: 8901/Greenwich (0.000000/  0d 0' 0.00"E)
Projection Linear Units: 9001/metre (1.000000m)

Corner Coordinates:
Upper Left    (-17367530.445, 7314540.647)  (179d60' 0.00"E, 85d 2'40.38"N)
Lower Left    (-17367530.445,-7314540.647)  (179d60' 0.00"E, 85d 2'40.38"S)
Upper Right   (17367530.445, 7314540.647)  (179d60' 0.00"W, 85d 2'40.38"N)
Lower Right   (17367530.445,-7314540.647)  (179d60' 0.00"W, 85d 2'40.38"S)
Center        (       0.000,       0.000)  (  0d 0' 0.00"E,  0d 0' 0.00"N)

Thank you.

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