| [geotrellis-user] Questions about GeoTrellis tiles |
Hi, First of all, thank you for developing GeoTrellis. Please, consider several questions: 1. I found "layer.metadata" as a container for layer information: https://github.com/locationtech/geotrellis/blob/master/docs/guide/examples.rst Is there any other information/metadata about the layer in addition to "layer.metadata"? Is there a function that will format and print "layer.metadata"? 2. There is a tile hierarchy diagram at https://geotrellis.readthedocs.io/en/latest/architecture/high-performance-scala.html The diagram has GeoTiffTile for many cell types (int16, byte, etc.). Do you use GeoTiffTiles during data processing or only during data ingestion? 3. Do you have options to compress GeoTrellis tiles that you use in RDD? 4. You use Hadoop MapFiles to persist GeoTrellis collections in Avro format https://geotrellis.readthedocs.io/en/latest/architecture/002-hdfs-raster-layers.html Avro supports deflate, Snappy compression codecs https://avro.apache.org/docs/1.8.1/spec.html Do you compress tiles when you write them to MapFiles? Thanks, Antonio