Sorry, that should be https://issues.apache.org/jira/browse/SEDONA-269
Br, Martin Andersson Den tors 23 mars 2023 kl 15:33 skrev Martin Andersson < u.martin.anders...@gmail.com>: > Hi Mo, > > This issue is only about adding support for the raster UDT in the current > geotiff writer. > > I also proposed https://issues.apache.org/jira/browse/SEDONA-268 which > could be used to implement support for many different kinds of raster > formats. > > Br > Martin Andersson > > Den tors 23 mars 2023 kl 14:57 skrev Mo Sarwat <mosar...@apache.org>: > >> Hi Martin, >> >> Thanks for proposing this feature. Will the writer generate >> cloud-optimized >> GeoTiFF. I am asking because Cogs are becoming industry standards for >> storing raster in object stores. >> >> -Mo >> >> On Thu, Mar 23, 2023 at 6:53 AM Martin Andersson (Jira) <j...@apache.org> >> wrote: >> >> > Martin Andersson created SEDONA-268: >> > --------------------------------------- >> > >> > Summary: Add support for raster types in Geotiff writer >> > Key: SEDONA-268 >> > URL: https://issues.apache.org/jira/browse/SEDONA-268 >> > Project: Apache Sedona >> > Issue Type: Improvement >> > Reporter: Martin Andersson >> > >> > >> > As discussed in: [ >> > https://lists.apache.org/thread/kbwqnj7kn9omtpsoyzbn0zsslvd8cm5t] >> > >> > With the introduction of raster types in SEDONA-251, it is now possible >> to >> > enhance the existing Geotiff writer to directly support writing Geotiffs >> > from rasters. >> > >> > Currently, the Geotiff writer requires six columns to create Geotiff >> > files: origin, geometry, width, height, nBands, and data. However, for >> > rasters, only two columns would be necessary: origin and raster. >> > >> > To achieve this, we propose modifying the Geotiff writer to first >> attempt >> > to use the existing six-column format. If the input DataFrame does not >> meet >> > the necessary criteria, the writer should instead look for the origin >> > column and a column with the raster UDT. >> > >> > For the origin column we could use the existing configuration parameter >> > (fieldOrigin). The raster column could be detected by type. If there are >> > several columns of type raster, the writer would throw an exception. For >> > DataFrames with several raster columns users would need to select one >> at a >> > time. Example: >> > {code:java} >> > df_many_rasters = ... >> > df_many_rasters.select("origin","raster1").write... >> > df_many_rasters.select("origin","raster2").write... >> > {code} >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > -- >> > This message was sent by Atlassian Jira >> > (v8.20.10#820010) >> > >> >
