Resampling - Part 1

[forman]

This is part one of two of a large breaking change in xcube that will allow for generic spatio-temporal resampling (#391). This part one concentrates on the implementation of spatial resampling. Part 2 will focus on combined spatio-temporal resampling and integration into the xcube gen2 tool.

Issues

Addresses #391
Addresses #112

Fixes #400

Major changes:

• Numerous breaking changes have been applied to this version in order to address generic resampling (Temporal and spatial resampling  #391) and support other CRS than WGS-84 (Allow for other common spatial CRS #112):

  • The following components have been removed entirely
    • module xcube.core.imgeom with class ImageGeom
    • module xcube.core.geocoding with class GeoCoding
    • module xcube.core.reproject and all its functions
  • The following components have been added
    • module xcube.core.gridmapping with new class GridMapping
      is a CF compliant replacement for classes ImageGeom and GeoCoding
  • The following components have changed in an incompatible way:
    • Functionxcube.core.rectify.rectify_dataset() now uses
      source_gm: GridMapping and target_gm: GridMapping instead of
      geo_coding: GeoCoding and output_geom: ImageGeom.
    • Functionxcube.core.gen.iproc.InputProcessor.process() now uses
      source_gm: GridMapping and target_gm: GridMapping instead of
      geo_coding: GeoCoding and output_geom: ImageGeom.
  • xcube no longer depends on GDAL (at least not directly).

• Removed example notebooks that used hard-coded local file paths. (Missing files for executing example notebooks #400)

• Fixed unit tests broken by accident. (Unittest test_fetch_wmts_kvp_tile does not pass anymore #396)

Checklist:

• Add unit tests and/or doctests in docstrings
• Add docstrings and API docs for any new/modified user-facing classes and functions
• [ ] New/modified features documented in docs/source/*
• Changes documented in docs/CHANGES.md
• AppVeyor and Travis CI passes
• Test coverage remains or increases (target 100%)
• Associated issues closed after merge

[forman]

Closed in favour of PM #485