Extent of Layer Not as Expected When Reading RDDs in With HadoopGeoTiffRDD and S3GeoTiffRDD

[jbouffard]

This was encountered in GeoPySpark, but this issue most likely exists in GeoTrellis as well. When collecting the Metadata for an RDD, it was found that the returned Extent for the whole layer is different than what was expected.

Below shows the expected and actual returned Extent:

expected extent: Extent(xmin=141.7066666666667, ymin=-17.73333333333334, xmax=141.92000000000004, ymax=-17.52000000000001)
actual extent:   Extent(xmin=141.7066666666667, ymin=-18.373333333333342, xmax=142.56000000000003, ymax=-17.52000000000001)

[jamesmcclain]

This was caused by the fact that a tile was of unexpected size and the "expected" extent was being taken from the projected extent of the first entry of a RDD.