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CHANGELOG.md

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+# Changelog
+
+All notable changes to **GSTools** will be documented in this file.
+
+
+## [Unreleased]
+**Reverberating Red**
+
+### Enhancements
+
+### Changes
+
+### Bugfixes
+- define spectral_density instead of spectrum in covariance models since Cov-base derives spectrum. See: https://github.com/GeoStat-Framework/GSTools/commit/00f2747fd0503ff8806f2eebfba36acff813416b
+- better boundaries for CovModel parameters. See: https://github.com/GeoStat-Framework/GSTools/issues/37
+
+
+## [1.1.0] - 2019-10-01
+**Reverberating Red**
+
+### Enhancements
+- by using Cython for all the heavy computations, we could achieve quite some speed ups and reduce the memory consumption significantly #16
+- parallel computation in Cython is now supported with the help of OpenMP and the performance increase is nearly linear with increasing cores #16
+- new submodule ``krige`` providing simple (known mean) and ordinary (estimated mean) kriging working analogous to the srf class
+- interface to pykrige to use the gstools CovModel with the pykrige routines (https://github.com/bsmurphy/PyKrige/issues/124)
+- the srf class now provides a ``plot`` and a ``vtk_export`` routine
+- incompressible flow fields can now be generated #14
+- new submodule providing several field transformations like: Zinn&Harvey, log-normal, bimodal, ... #13
+- Python 3.4 and 3.7 wheel support #19
+- field can now be generated directly on meshes from [``meshio``](https://github.com/nschloe/meshio) and [``ogs5py``](https://github.com/GeoStat-Framework/ogs5py) f4a3439400b8
+- the srf and kriging classes now store the last ``pos``, ``mesh_type`` and ``field`` values to keep them accessible 29f7f1b02
+- tutorials on all important features of GSTools have been written for you guys #20
+- a new interface to pyvista is provided to export fields to python vtk representation, which can be used for plotting, exploring and exporting fields #29
+
+### Changes
+- the license was changed from GPL to LGPL in order to promote the use of this library #25
+- the rotation angles are now interpreted in positive direction (counter clock wise)
+- the ``force_moments`` keyword was removed from the SRF call method, it is now in provided as a field transformation #13
+- drop support of python implementations of the variogram estimators #18
+- the ``variogram_normed`` method was removed from the ``CovModel`` class due to redundance 25b164722ac6744ebc7e03f3c0bf1c30be1eba89
+- the position vector of 1D fields does not have to be provided in a list-like object with length 1 a6f5be8bf
+
+### Bugfixes
+- several minor bugfixes
+
+
+## [1.0.1] - 2019-01-18
+**Bouncy Blue**
+
+### Bugfixes
+- fixed Numpy and Cython version during build process
+
+
+## [1.0.0] - 2019-01-16
+**Bouncy Blue**
+
+### Enhancements
+- added a new covariance class, which allows the easy usage of arbitrary covariance models
+- added many predefined covariance models, including truncated power law models
+- added [tutorials](https://geostat-framework.readthedocs.io/projects/gstools/en/latest/tutorials.html) and examples, showing and explaining the main features of GSTools
+- variogram models can be fitted to data
+- prebuilt binaries for many Linux distributions, Mac OS and Windows, making the installation, especially of the Cython code, much easier
+- the generated fields can now easily be exported to vtk files
+- variance scaling is supported for coarser grids
+- added pure Python versions of the variogram estimators, in case somebody has problems compiling Cython code
+- the [documentation](https://geostat-framework.readthedocs.io/projects/gstools/en/latest/) is now a lot cleaner and easier to use
+- the code is a lot cleaner and more consistent now
+- unit tests are now automatically tested when new code is pushed
+- test coverage of code is shown
+- GeoStat Framework now has a website, visit us: https://geostat-framework.github.io/
+
+### Changes
+- release is not downwards compatible with release v0.4.0
+- SRF creation has been adapted for the CovModel
+- a tuple `pos` is now used instead of `x`, `y`, and `z` for the axes
+- renamed `estimate_unstructured` and `estimate_structured` to `vario_estimate_unstructured` and `vario_estimate_structured` for less ambiguity
+
+### Bugfixes
+- several minor bugfixes
+
+
+## [0.4.0] - 2018-07-17
+**Glorious Green**
+
+### Bugfixes
+- import of cython functions put into a try-block
+
+
+## [0.3.6] - 2018-07-17
+**Original Orange**
+
+First release of GSTools.
+
+
+[Unreleased]: https://github.com/GeoStat-Framework/gstools/compare/v1.1.0...HEAD
+[1.1.0]: https://github.com/GeoStat-Framework/gstools/compare/v1.0.1...v1.1.0
+[1.0.1]: https://github.com/GeoStat-Framework/gstools/compare/v1.0.0...v1.0.1
+[1.0.0]: https://github.com/GeoStat-Framework/gstools/compare/0.4.0...v1.0.0
+[0.4.0]: https://github.com/GeoStat-Framework/gstools/compare/0.3.6...0.4.0
+[0.3.6]: https://github.com/GeoStat-Framework/gstools/releases/tag/0.3.6