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Missing rf_local_biased_add in pyrasterframes #578
Description
I found this function on scala source code, but not working on pyrasterframes...
I need to make data + nodata = data and not data + nodata> = nodata
If understand the code
rf_local_add consider data + nodata = nodata
rf_local_biased_add consider data> + nodata> = data
anyone can help me to do this without this function (maybe masking etc)?
Thanks
Activity
lepitrust commentedon Mar 9, 2022
Up... Anyone know why this feature is not available in pyrasterframes?
https://github.com/locationtech/rasterframes/blob/dc72ece3534a1d8d9a9eebfb1ce4b90e9c3f6ce8/core/src/main/scala/org/locationtech/rasterframes/expressions/localops/BiasedAdd.scala
Thanks
pomadchin commentedon Mar 9, 2022
Hey @lepitrust mb it just was not registered and than not exposed; I'll be glad to help you with framing a PR in case you want to handle that yourself.
As a workaround you may try to reg this function and use CQL to call it.
mb there was also smth behind it cc @metasim
lepitrust commentedon Mar 9, 2022
Hi, thanks @pomadchin! Any alternative is welcome ;)
I have a little spark cluster with pyrasterframes correctly working.
I'm trying to use for sum two raster after mul operation. beam and diff are raster tiles, k_b a k_d are float number.
This working, but diff raster contain a lot of NoData which must be ignored in the sum...
The solution can be a biased op... ;)
df_rf_ghi = df_rf_max \ .select(rf_extent(F.col('beam')).alias('new_extent'), rf_crs(F.col('beam')).alias('new_crs'), \ F.col('dims').alias('ghi_dims') rf_local_add(\ rf_local_multiply(F.col('beam'), F.col('k_b')), \ rf_local_multiply(F.col('diff'), F.col('k_d')) \ ).alias('new_raster'))