GeoTIFF / GeoTIFF/georaster-stack

support sampling outside bounds of raster

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Description

If you sample outside the bounds of the raster (AND no NoDataValue is set for the sources), I believe it returns 0 values, which is obviously confusing. At the very least we should return NaN, undefined, or null.

This makes is difficult for clients to know to properly render the out of bounds values as transparent.

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