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CHANGELOG.md

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CHANGELOG

0.2.0, 10 October 2023

  • Added gio.find_closures() to automatically find closing contours in a grid. Also added short notebook about it to the docs. Many thanks to Rob Gooder for hugely improving this algorithm.
  • Development note: switched to PEP621-style build system, using only pyproject.toml.
  • Now also building on and supporting Python 3.11.
  • Moving to more conventional semantic versioning.

0.1.7, 19 September 2022

  • Fixed bug issue #26, which garbled string comments in array_to_zmap().
  • Implemented enhancement issue #17. Created gio.unmap_to_dataarray(), putting the guts of the algorithm into its own library, unmap, which is now a dependency of gio. The library only produces NumPy arrays, so gio adds the xarray wrapper and a couple of extra options.

0.1.6, 11 September 2022

The overall plan of gio is starting to take shape. In general, the plan is to read specialist subsurace formats of various file types, with either xarray.Dataset or xarray.DataArray as the target. Then, gio will write these same formats via an accessor method on the xarray object (and possibly also via ordinary functions). This release implements this pattern for the first time, specifically for the ZMAP format.

  • Added the zmap module, with functions for reading ZMAP files (read_zmap()) and for writing files starting from an xarray.DataArray or from a NumPy array.
  • Added xarray.DataArray accessor (in xarray.py) to save in ZMAP and OpendTect formats. The plan is to add more target formats the the accessor, according to need.
  • Added tests for the ZMAP components. Removed run_tests.py and put the pytest options in setup.cfg, which seems cleaner.
  • Started trying to maintain this file properly!
  • Note that there are two 'work in progress' modules: esri.py and usgs.py, which will eventually read some common DEM formats.

In general, everything is a work in progress but if there is a chapter on something in the User Guide then it mostly works, at least for the test cases I have. If you have a file that should work but doesn't, please consider making an issue.

Feedback is welcome on whether the target format for readers should be xarray.Dataset every time, even for singleton files.

0.1.5, 12 February 2022

  • Added the random module, which generates random surfaces using sums of Perlin noise. The high-level interface is gio.generate_random_surface(). Also added a notebook for help on this module.
  • Added the logo module, which plots gio's logo. Using the logo in the docs.

0.1.4, 3 February 2022

  • New module: surfer, adapted from Seequent's steno3d_surfer, for reading Surfer 6 binary and ASCII files, and Surfer 7 binary files. The module does not write files yet.
  • Started development on iesx module for reading IESX formatted files, eg from Petrel or OpendTect

0.1.0 to 0.1.3, February 2022

  • Early development included setting up the package, and adding the opendtect and xy_to_grid modules.