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RasterJoin df.toLayer etc fail on non-standard CRS / Extent col names #503

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vpipkt opened this issue Sep 10, 2020 · 1 comment · May be fixed by #504
Open

RasterJoin df.toLayer etc fail on non-standard CRS / Extent col names #503

vpipkt opened this issue Sep 10, 2020 · 1 comment · May be fixed by #504
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bug When it really isn't a "feature". good first issue Good for newcomers

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vpipkt commented Sep 10, 2020

This code:

val df = spark.read.raster //....
          .select(rf_tile($"red"), rf_extent($"red") as "red_extent", rf_crs($"red") as "red_crs")
          .toLayer(tlm)

Fails with error about column crs as crs not found. Pinpointed this to https://github.com/locationtech/rasterframes/blob/develop/core/src/main/scala/org/locationtech/rasterframes/extensions/RasterJoin.scala#L44

I believe in this case since there is no projected raster tile column (note use of rf_tile), it is trying to select crs and extent by name.

Should look for columns by type instead.
@vpipkt vpipkt added the bug When it really isn't a "feature". label Sep 10, 2020
@vpipkt vpipkt self-assigned this Sep 10, 2020
vpipkt added a commit to s22s/rasterframes that referenced this issue Sep 10, 2020
@vpipkt
failing unit test around locationtech#503
7b97fd4 
Signed-off-by: Jason T. Brown <[email protected]>
@vpipkt vpipkt linked a pull request Sep 10, 2020 that will close this issue
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vpipkt commented Sep 10, 2020

A highlight from the stack trace:

	at org.apache.spark.sql.Dataset.withColumn(Dataset.scala:2225)
	at org.locationtech.rasterframes.extensions.RasterJoin$$anonfun$usePRT$1$3.apply(RasterJoin.scala:46)
	at org.locationtech.rasterframes.extensions.RasterJoin$$anonfun$usePRT$1$3.apply(RasterJoin.scala:45)
	at scala.Option.map(Option.scala:146)
	at org.locationtech.rasterframes.extensions.RasterJoin$.usePRT$1(RasterJoin.scala:45)
	at org.locationtech.rasterframes.extensions.RasterJoin$.apply(RasterJoin.scala:52)
	at org.locationtech.rasterframes.extensions.ReprojectToLayer$.apply(ReprojectToLayer.scala:52)
	at org.locationtech.rasterframes.extensions.DataFrameMethods$class.toLayer(DataFrameMethods.scala:215)

@metasim metasim added the good first issue Good for newcomers label Sep 10, 2020
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Fix RasterJoin and toLayer crs and extent column name search s22s/rasterframes
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