Having done map algebra to GeoTrellis layer, convert it to numpy RDD but include neighboring pixels so the python process can perform a python focal operation over tile boundaries.
Required information per record:
Tile Key
numpy array with all pixels
bounds of central tile
This use case covers only the RDD[MultibandTile] -> RDD[BufferedTile[MultibandTile] -> PyRDD[numpy] conversion. We should avoid adding BufferedTile as a type to GeoPySpark tile/layer hierarchy. That type is not extensively supported in GeoTrellis and writing operations over it would likely run into a bunch of problems
Having done map algebra to GeoTrellis layer, convert it to numpy RDD but include neighboring pixels so the python process can perform a python focal operation over tile boundaries.
Required information per record:
This use case covers only the RDD[MultibandTile] -> RDD[BufferedTile[MultibandTile] -> PyRDD[numpy] conversion. We should avoid adding
BufferedTileas a type to GeoPySpark tile/layer hierarchy. That type is not extensively supported in GeoTrellis and writing operations over it would likely run into a bunch of problems