Dear list,
what does the annoying error 'ERROR 1: Too many points (441 out of 441)
failed to transform' mean?
When I try to warp a MODIS image directly into tif it works perfect:
gdalwarp -t_srs '+proj=latlong' -of GTiff -geoloc -te -4 51 14 66 -ts
900 1400 HDF4_SDS:UNKNOWN:"/data/A2012101111000.L2_LAC.NorthSea.hdf":15
modis_geoloc.tif
But when I try to make the VRT file first it fails with this error:
Commands:
gdalwarp -t_srs '+proj=latlong' -of VRT -geoloc -te -4 51 14 66 -ts 900
1400 HDF4_SDS:UNKNOWN:"/data/A2012101111000.L2_LAC.NorthSea.hdf":15
modis_geoloc.vrt
gdal_translate modis_geoloc.vrt modis_geoloc.vrt.tif
Output:
Input file size is 900, 1400
0ERROR 1: Too many points (441 out of 441) failed to transform,
unable to compute output bounds.
ERROR 1: modis_geoloc.vrt, band 1: IReadBlock failed at X offset 0, Y
offset 0
ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 0
What makes me crazy is that if the output file is smaller (say 500 x
500) it works via the VRT also fine. WHY?!
The VRT file (w/o metadata) is below. The source file (4 MB) is here:
http://hab.nersc.no/NorthSea/A2012101111000.L2_LAC.NorthSea.hdf.bz2
Thank you very much for any hint.
Anton
<VRTDataset rasterXSize="900" rasterYSize="1400"
subClass="VRTWarpedDataset">
<SRS>GEOGCS["WGS
84",DATUM["unknown",SPHEROID["WGS84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]]</SRS>
<GeoTransform> -4.0000000000000000e+00, 2.0000000000000000e-02,
0.0000000000000000e+00, 6.6000000000000000e+01,
0.0000000000000000e+00, -1.0714285714285714e-02</GeoTransform>
<Metadata>
<MDI key="bad_value_scaled">-32767</MDI>
</Metadata>
<VRTRasterBand dataType="Int16" band="1" subClass="VRTWarpedRasterBand">
<ColorInterp>Gray</ColorInterp>
</VRTRasterBand>
<BlockXSize>512</BlockXSize>
<BlockYSize>128</BlockYSize>
<GDALWarpOptions>
<WarpMemoryLimit>6.71089e+07</WarpMemoryLimit>
<ResampleAlg>NearestNeighbour</ResampleAlg>
<WorkingDataType>Int16</WorkingDataType>
<Option name="INIT_DEST">0</Option>
<SourceDataset
relativeToVRT="1">HDF4_SDS:UNKNOWN:/data/A2012101111000.L2_LAC.NorthSea.hdf:15</SourceDataset>
<Transformer>
<ApproxTransformer>
<MaxError>0.125</MaxError>
<BaseTransformer>
<GenImgProjTransformer>
<SrcGeoLocTransformer>
<GeoLocTransformer>
<Reversed>0</Reversed>
<Metadata>
<MDI key="LINE_OFFSET">0</MDI>
<MDI key="LINE_STEP">1</MDI>
<MDI key="PIXEL_OFFSET">0</MDI>
<MDI key="PIXEL_STEP">1</MDI>
<MDI key="SRS">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"]]</MDI>
<MDI key="X_BAND">1</MDI>
<MDI
key="X_DATASET">HDF4_SDS:UNKNOWN:"/data/A2012101111000.L2_LAC.NorthSea.hdf":11</MDI>
<MDI key="Y_BAND">1</MDI>
<MDI
key="Y_DATASET">HDF4_SDS:UNKNOWN:"/data/A2012101111000.L2_LAC.NorthSea.hdf":12</MDI>
</Metadata>
</GeoLocTransformer>
</SrcGeoLocTransformer>
<DstGeoTransform>-4,0.02,0,66,0,-0.01071428571428571</DstGeoTransform>
<DstInvGeoTransform>200,49.99999999999999,0,6159.999999999999,0,-93.33333333333333</DstInvGeoTransform>
<ReprojectTransformer>
<ReprojectionTransformer>
<SourceSRS>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"]]</SourceSRS>
<TargetSRS>GEOGCS["WGS
84",DATUM["unknown",SPHEROID["WGS84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]]</TargetSRS>
</ReprojectionTransformer>
</ReprojectTransformer>
</GenImgProjTransformer>
</BaseTransformer>
</ApproxTransformer>
</Transformer>
<BandList>
<BandMapping src="1" dst="1" />
</BandList>
</GDALWarpOptions>
</VRTDataset>
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