How to make "Unsupervised machine learning" read "GeoTrellis Catalogs"?

locationtech / rasterframes

Geospatial Raster support for Spark DataFrames

http://rasterframes.io

Apache License 2.0

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How to make "Unsupervised machine learning" read "GeoTrellis Catalogs"? #536

Closed JenniferYingyiWu2020 closed 3 years ago

JenniferYingyiWu2020 commented 3 years ago

Hi, I have read the "GeoTrellis Catalogs" section of "Reading Raster Data",

However, the method of reading raster data used in "Unsupervised machine learning" is from reading 8 (bands) ".tiff" images by using file URI.

So, could you pls give me some suggestions on how to modify the codes of "unsupervised machine learning" to read "GeoTrellis Catalogs"? Thanks!

vpipkt commented 3 years ago

What have you tried so far? Have you run into any behavior that you think is a bug?

I would think replace df = spark.read.raster(...) with df = spark.read.geotrellis(...) perhaps. This will depend on the specifics of how the geotrellis catalog has been ingested though. If you can provide additional details on the Gitter.im chat we'll try to help.