Re: [gdal-dev] current geolocation array implementation status

2021-11-03 Thread Frederico Liporace
Even, Frank, Thanks for the feedback. I found that for the case I reported the artifacts are being generated in the backmap gap filling process, this is removing the internal gaps as expected but is also incorrectly extending the backmap outside the valid area, effectively replicating the pixel va

Re: [gdal-dev] current geolocation array implementation status

2021-11-03 Thread Frank Warmerdam
Frederico, I've updated the ticket to reflect that I backed away from work on a new implementation. I would still like to see a reliable geolocation transformer. I am also still interested in the general topic of iterative approximate inverses for transformers which are not inherently invertible

Re: [gdal-dev] current geolocation array implementation status

2021-11-02 Thread Even Rouault
Frederico, Le 01/11/2021 à 23:22, Frederico Liporace a écrit : Hello, I'm debugging an artifact that I encountered while using geolocation arrays: https://github.com/OSGeo/gdal/issues/4707 While searching I found this ticket mentioning that the backward map implementation is broken and a new i

[gdal-dev] current geolocation array implementation status

2021-11-01 Thread Frederico Liporace
Hello, I'm debugging an artifact that I encountered while using geolocation arrays: https://github.com/OSGeo/gdal/issues/4707 While searching I found this ticket mentioning that the backward map implementation is broken and a new implementation is being considered: https://trac.osgeo.org/gdal/tic